2010 Cadillac Truck SRX FWD V6-3.0L Page 862

2010 Cadillac Truck SRX FWD V6-3.0L Page 862

Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Testing

1. Verify that no DTCs are present in the ECM.

瀚慖f any DTC is present, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code Descriptions/Diagnostic

Trouble Code (DTC) List - Vehicle) to diagnose that DTC prior to this diagnostic.

2. Replace the K19 suspension control module and verify the DTC does not reset.

瀚慖f the DTC resets replace the K20 engine control module (ECM).

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning)for control module replacement, setup and programming

C0750

DTC C0750, C0755, C0760, or C0765

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions)provides an overview of each diagnostic category.

DTC Descriptor

DTC C0750 03

- Left Front Tire Pressure Sensor Low Voltage

DTC C0750 29

- Left Front Tire Pressure Sensor Too Few Pulses

DTC C0750 39

- Left Front Tire Pressure Sensor Internal Malfunction

DTC C0755 03

- Right Front Tire Pressure Sensor Low Voltage

DTC C0755 29

- Right Front Tire Pressure Sensor Too Few Pulses

DTC C0755 39

- Right Front Tire Pressure Sensor Internal Malfunction

DTC C0760 03

- Left Rear Tire Pressure Sensor Low Voltage

DTC C0760 29

- Left Rear Tire Pressure Sensor Too Few Pulses

DTC C0760 39

- Left Rear Tire Pressure Sensor Internal Malfunction

DTC C0765 03

- Right Rear Tire Pressure Sensor Low Voltage

DTC C0765 29

- Right Rear Tire Pressure Sensor Too Few Pulses

DTC C0765 39

- Right Rear Tire Pressure Sensor Internal Malfunction

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Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Verification

Ignition ON, observe the scan tool EBCM Wheel Speed Sensor parameters. The reading should be the same speed on all sensors when driving in a

straight line at a speed greater than 20 km/h (13 MPH).

Circuit/System Testing

1. Ignition ON, verify that DTC C0035, C0040, C0045, or C0050 is not present in the EBCM.

瀚慖f any listed DTC is present, refer to DTC C0035, C0040, C0045, or C0050 (See: C Code Charts/C0035) to diagnose that DTC prior to

this diagnostic.

2. Replace the K17 Electronic Brake Control Module (EBCM) and verify the DTC does not reset.

瀚慖f the DTC resets, replace the module that set the DTC.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning)for module replacement, setup and programming

C1226

DTC C1207-C1210, C1221-C1228, or C1232-C1235

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions)provides an overview of each diagnostic category.

DTC Descriptor

DTC C1207 00

- Left Front Wheel Speed Sensor Circuit High Input Malfunction

DTC C1208 00

- Right Front Wheel Speed Sensor Circuit High Input Malfunction

DTC C1209 00

- Left Rear Wheel Speed Sensor Circuit High Input Malfunction

DTC C1210 00

- Right Rear Wheel Speed Sensor Circuit High Input Malfunction

DTC C1221 00

- Left Front Wheel Speed Sensor Circuit Malfunction

DTC C1222 00

- Right Front Wheel Speed Sensor Circuit Malfunction

DTC C1223 00

- Left Rear Wheel Speed Sensor Circuit Malfunction

DTC C1224 00

- Right Rear Wheel Speed Sensor Circuit Malfunction

DTC C1225 00

- Left Front Wheel Speed Sensor Circuit Performance Malfunction

DTC C1226 00

- Right Front Wheel Speed Sensor Circuit Performance Malfunction

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2010 Cadillac CTS Sedan AWD V6-3.6L Page 559

Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Verification

Verify none of the following DTCs are set:

* DTC B3109

* DTC B3110

* DTC B3111

* DTC B3112

If any of the DTCs are set, replace the battery in the appropriate keyless entry transmitter. Operate the transmitter 3 consecutive times. If the DTC

resets, replace the keyless entry transmitter.

Repair Instructions

Important: This vehicle may be equipped with the Advance 2 Way Remote Start System. Vehicle equipped with the Advance 2 Way

Remote Start System can be identified by an LCD screen on the keyless entry transmitter or a yellow label on the RCDLR. When servicing

the Advance 2 Way Remote Start System, ensure that the correct parts are installed during replacement. Service parts for the Advance 2

Way Remote Start System can be found in the Accessory section of the parts manual.

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Remote Control Door Lock Transmitter Programming (without Y41) (See: Accessories and Optional Equipment/Antitheft and Alarm

Systems/Keyless Entry/Keyless Entry Transmitter/Testing and Inspection/Remote Control Door Lock Transmitter Programming (without Y41))

B3112

DTC B3109, B3110, B3111, or B3112

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions)provides an overview of each diagnostic category.

DTC Descriptors

DTC B3109 00

- Keyless Entry Transmitter 1 Low Battery

DTC B3110 00

- Keyless Entry Transmitter 2 Low Battery

DTC B3111 00

- Keyless Entry Transmitter 3 Low Battery

DTC B3112 00

- Keyless Entry Transmitter 4 Low Battery

Circuit/System Description

Without RPO Y41

With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the remote control

door lock receiver (RCDLR) along with the commanded keyless entry function.

With RPO Y41

When starting the vehicle, a message containing the current battery state of the transmitter is sent to the remote control door lock receiver

(RCDLR).

Conditions for Running the DTC

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Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Verification

Perform the Programming and Setup procedure for the control module that set DTC B3902. Verify the DTC does not reset after programming.

If the DTC resets, replace the appropriate control module.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning)for instrument cluster, EBCM, HVAC control module,

SDM, ECM, or steering column lock control module replacement, setup, and programming

C0000

DTC C0000

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptor

DTC C0000 71

- Vehicle Speed Information Circuit Invalid Data

Circuit/System Description

The wheel speeds are detected by active wheel speed sensors. Each wheel speed sensor receives a 12 V reference voltage from the electronic brake

control module (EBCM) and provides an alternating current square wave signal to the EBCM. As the wheel spins, the EBCM uses the frequency of

the square wave signal to calculate the wheel speed. The EBCM sends the wheel speed information as a high speed controller area network (CAN)

serial data message. Modules connected to the high speed CAN circuit monitor for the vehicle speed information.

Conditions for Running the DTC

System voltage is between 9-16 V.

Conditions for Setting the DTC

A supervised periodic message that includes the wheel speed serial data has not been received.

Action Taken When the DTC Sets

The electronic suspension control is disabled for the duration of the ignition cycle.

Conditions for Clearing the DTC

A current DTC clears when the diagnostic runs and passes.

Reference Information

Schematic Reference

Electronic Suspension Control Schematics (See: Steering and Suspension/Suspension/Suspension Control ( Automatic - Electronic

)/Diagrams/Electrical Diagrams)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

Electronic Suspension Control Description and Operation (See: Steering and Suspension/Suspension/Suspension Control ( Automatic - Electronic

)/Description and Operation)

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Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Special Tools

J-46079 Tire Pressure Monitor Diagnostic Tool

Circuit/System Verification

1. Using the J-46079 , activate each tire pressure sensor and record each sensors transmission data and physical location. Verify J-46079

displays the 8-digit ID number, accurate tire pressure +/- 27.6 kPa (4 psi), Learn Mode, and at least a 1/4 graph signal strength displayed.

瀚慖f any of the parameters listed above are not displayed, replace the suspect tire pressure sensor.

2. With the scan tool, verify tire pressure sensors ID and locations displayed on the scan tool match the IDs and locations recorded from the

special tool.

瀚慖f the IDs and locations do not match, perform the Tire Pressure Indicator Sensor Learn (See: Instrument Panel, Gauges and Warning

Indicators/Tire Monitoring System/Tire Pressure Sensor/Testing and Inspection).

3. Enable the TPM learn mode. Use the J-46079 in simulate mode to learn 4 simulated sensor transmissions into the BCM. Verify that all 4

simulated sensor locations, IDs, and tire pressures displayed on the TPM special tool match the corresponding scan tool parameters

displayed.

瀚慖f the scan tool does not match, replace the K9 BCM.

4. Test drive the vehicle above 40 km/h (25 mph) for greater than 2 minutes. With the scan tool, observe the suspect Pressure Sensor Mode data

parameter. Verify the sensor mode changes to Rolling.

瀚慖f the Pressure Sensor Mode does not change, replace the suspect tire pressure sensor.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Tire Pressure Indicator Sensor Replacement (See: Instrument Panel, Gauges and Warning Indicators/Tire Monitoring System/Tire Pressure

Sensor/Service and Repair)

* Tire Pressure Indicator Sensor Learn (See: Instrument Panel, Gauges and Warning Indicators/Tire Monitoring System/Tire Pressure

Sensor/Testing and Inspection)

* Control Module References (See: Testing and Inspection/Programming and Relearning)for BCM replacement, setup and programming.

C0775

DTC C0775

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions)provides an overview of each diagnostic category.

DTC Descriptor

DTC C0775 00

- Low Tire Pressure System Sensors Malfunction

Circuit/System Description

If the tire pressure sensor learn procedure has not been performed, the tire pressure monitor indicator icon on the instrument panel cluster (IPC) will

flash for 1 minute and then remain illuminated after the ignition switch is cycled ON and the IPC bulb check is complete. If equipped, the driver

information center (DIC) will also display a service tire monitor type message. Under these circumstances, DTC C0775 will be set and the tire

pressure sensor learn procedure will need to be performed for the system to function correctly.

Conditions for Running the DTC

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Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Testing

1. Verify that DTC P0231, P0232 or P023F are not set.

瀚慖f any of those codes are set, refer to DTC P0231, P0232, or P023F (See: P Code Charts/P0231).

2. Ensure that the entire undercarriage of the vehicle is clean, especially around the area where the K27 fuel pump control module is located.

Clear all codes from the K27 fuel pump control module and test drive the vehicle. Verify that DTC P1255 or P064A do not set.

瀚慖f DTC P1255 or P064A reset, replace the K27 fuel pump control module.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning)for fuel pump control module replacement, setup, and

programming

P1258

DTC P1258

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptor

DTC P1258

- Engine Coolant Over temperature - Protection Mode Active

Circuit/System Description

The engine control module (ECM) uses the engine coolant temperature (ECT) sensor to monitor the engine for an over-termperature condition. This

condition occurs when the coolant temperature is above a calibrated value for a calibrated length of time. The ECM will disable half of the

cylinders by turning OFF the fuel injectors. By disabling half of cylinders, the ECM is able to reduce the temperature of the coolant.

Conditions for Running the DTC

The engine is operating.

Conditions for Setting the DTC

All V8

The coolant temperature is warmer than 129掳C (264掳F) for greater than 10 seconds.

6.0L-Hybrid

The coolant temperature is warmer than 132掳C (270掳F) for greater than 10 seconds.

Action Taken When the DTC Sets

* DTC P1258 is a Type A DTC.

* The engine will operate in the Overheated Engine Protection Operating Mode.

* The engine coolant temperature indicator lamp, if equipped, will illuminate.

* The driver information center (DIC), if equipped, may display a message.

* If the protection mode is active and an ECT sensor DTC sets, the protection mode will activate during the next drive cycle until the ECT

sensor DTC runs and passes.

Conditions for Clearing the DTC

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Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Verification

1. Ignition ON, observe the DTC information with a scan tool. Verify no B52 HO2S heater DTCs are set.

瀚慖f a B52 HO2S heater DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code

Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle).

2. Engine running, observe the appropriate scan tool B52 HO2S voltage parameter. The reading should be within the range of 50-1,050 mV.

3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the

conditions that you observed from the Freeze Frame/Failure Records data.

Circuit/System Testing

Note: All modules must be powered down or misdiagnosis may result.

1. Ignition OFF, disconnect the harness connector at the appropriate B52 HO2S.

2. Ignition OFF, all vehicle systems OFF, this may take up to 2 minutes, test for less than 5 ohm between the low reference circuit terminal A

and ground.

瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the ECM.

3. Ignition ON, verify the appropriate scan tool B52 HO2S parameter is approximately 450 mV.

瀚慖f less than the specified value, test the signal circuit for a short to ground. If the circuit tests normal, replace the K20 ECM.

瀚慖f greater than the specified value, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K20 ECM.

4. Ignition ON, install a 3 A fused jumper wire between the signal circuit terminal B and ground. Verify the appropriate scan tool B52 HO2S

parameter is less than 60 mV.

瀚慖f greater than the specified range, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the K20 ECM.

5. If all circuits test normal, replace the appropriate B52 HO2S.

Repair Instructions

Caution: Refer to Heated Oxygen Sensor Resistance Learn Reset Caution (See: Powertrain Management/Computers and Control

Systems/Oxygen Sensor/Service Precautions/Heated Oxygen Sensor Resistance Learn Reset Caution).

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (1500 Series) (See: Powertrain Management/Computers and Control

Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (2500 Series) (See: Powertrain

Management/Computers and Control Systems/Oxygen Sensor/Service and Repair)

* Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (1500 Series) (See: Powertrain Management/Computers and Control

Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (2500 Series) (See: Powertrain

Management/Computers and Control Systems/Oxygen Sensor/Service and Repair)

* Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (1500 Series) (See: Powertrain Management/Computers and Control

Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (2500 Series) (See: Powertrain

Management/Computers and Control Systems/Oxygen Sensor/Service and Repair)

* Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 (1500 Series) (See: Powertrain Management/Computers and Control

Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 (2500 Series) (See: Powertrain

Management/Computers and Control Systems/Oxygen Sensor/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning)for ECM replacement, setup, and programming

P0160

DTC P0134, P0140, P0154, or P0160

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

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Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Verification

1. With the engine at normal operating temperature, raise the engine speed to 2,000 RPM for 10 s. DTCs P0010, P0013, P0020, P0023, P2088,

P2089, P2090, P2091, P2092, P2093, P2094, or P2095 should not set.

2. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the

conditions that you observed from the Freeze Frame/Failure Records data.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the appropriate Camshaft Position Actuator Solenoid Valve.

2. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 1 and ground.

瀚慖f the test lamp does not illuminate, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal and the

ignition circuit fuse is open, test all the components connected to the ignition circuit and replace as necessary.

3. Connect a DMM, set on the diode setting, between the control circuit terminal 2 and ground. The voltage should be greater than 2 V.

瀚慖f the DMM displays OL, test the control circuit for a short to voltage or an open/high resistance. If the circuit/connections test normal,

replace the Engine Control Module.

瀚慖f less than the specified value, test the control circuit for a short to ground. If the circuit tests normal, replace the Engine Control Module.

4. Command the Camshaft Position Actuator Solenoid Valve ON and OFF with a scan tool. The DMM should transition from greater than 2 V

when commanded OFF to less than 1 V, when commanded ON.

瀚慖f the circuit voltage does not correspond to the specified values, replace the Engine Control Module.

5. If all circuits/connections test normal, test or replace the appropriate Camshaft Position Actuator Solenoid Valve.

Component Testing

1. Ignition OFF, disconnect the harness connector at the appropriate Camshaft Position Actuator Solenoid Valve.

2. Test for 7-12 ohm between the control terminal 2 and the ignition terminal 1 of the Camshaft Position Actuator Solenoid Valve.

瀚慖f not within the specified range, replace the Camshaft Position Actuator Solenoid Valve.

3. Test for infinite resistance between each terminal and the Camshaft Position Actuator Solenoid Valve housing.

瀚慖f not the specified value, replace the Camshaft Position Actuator Solenoid Valve.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Intake (See: Engine, Cooling and

Exhaust/Engine/Actuators and Solenoids - Engine/Variable Valve Timing Solenoid/Service and Repair/Camshaft Position Actuator Solenoid

Valve Solenoid Replacement - Bank 1 (Right Side) Intake)

* Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Exhaust (See: Engine, Cooling and

Exhaust/Engine/Actuators and Solenoids - Engine/Variable Valve Timing Solenoid/Service and Repair/Camshaft Position Actuator Solenoid

Valve Solenoid Replacement - Bank 1 (Right Side) Exhaust)

* Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 2 (Left Side) Intake (See: Engine, Cooling and

Exhaust/Engine/Actuators and Solenoids - Engine/Variable Valve Timing Solenoid/Service and Repair/Camshaft Position Actuator Solenoid

Valve Solenoid Replacement - Bank 2 (Left Side) Intake)

* Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 2 (Left Side) Exhaust (See: Engine, Cooling and

Exhaust/Engine/Actuators and Solenoids - Engine/Variable Valve Timing Solenoid/Service and Repair/Camshaft Position Actuator Solenoid

Valve Solenoid Replacement - Bank 2 (Left Side) Exhaust)

* Control Module References (See: Testing and Inspection/Programming and Relearning)for Engine Control Module replacement, setup, and

programming

P2095

DTC P0010, P0013, P0020, P0023, P2088, P2089, P2090, P2091, P2092, P2093, P2094, or P2095 (Without LF1)

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

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2010 Cadillac CTS Sedan AWD V6-3.0L Page 1569

Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Verification

1. Ignition ON, observe the DTC information with a scan tool. DTC P0641, P0642, P0643, P0651, P0652, P0653, P0697, P0698, or P0699

should not set.

2. Observe the appropriate scan tool 5 V Reference Circuit Test Status parameter. The parameter should display OK or Not Run.

3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the

conditions that you observed from the Freeze Frame/Failure Records data.

Circuit/System Testing

Note: Additional DTCs will set when disconnecting the components.

1. Ignition OFF, disconnect the harness connector of all appropriate sensors for the applicable DTC. Refer to Diagnostic Aids.

2. Ignition ON, test for 4.8-5.2 V between each of the affected 5 V reference circuits and ground.

瀚慖f the voltage is less than the specified range, test for a short to ground or for an open between the ECM and the affected circuit splice. If

the circuit tests normal, replace the K20 ECM.

瀚慖f the voltage is greater than the specified range, test for a short to voltage on the 5 V reference circuit. If the circuit tests normal, replace

the K20 ECM.

Note: A short to voltage on the signal circuit of certain components may cause this DTC to set.

3. Connect each component associated with the affected 5 V reference circuit one at a time while monitoring the appropriate scan tool 5 V

Reference Circuit Status parameter. The parameter should continue to display OK.

瀚慖f the parameter displays Fault when a component is connected, test the signal circuit of that component for a short to voltage. If the

circuit tests normal, replace the component.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Fuel Tank Pressure Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Fuel Tank Pressure Sensor/Service

and Repair)

* Fuel Pressure Sensor Replacement - Fuel Injection Fuel Rail (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel

Pressure Sensor/Switch/Service and Repair)Fuel Pressure Sensor Replacement - Fuel Injection Fuel Rail (LLT) (See: Powertrain

Management/Fuel Delivery and Air Induction/Fuel Pressure Sensor/Switch/Service and Repair)

* Engine Oil Pressure Sensor and/or Switch Replacement (See: Engine, Cooling and Exhaust/Engine/Engine Lubrication/Oil Pressure

Sensor/Service and Repair)

* Camshaft Position Sensor Replacement - Bank 1 (Right Side) Intake (See: Powertrain Management/Computers and Control

Systems/Camshaft Position Sensor/Service and Repair/Camshaft Position Sensor Replacement - Bank 1 (Right Side) Intake)

* Camshaft Position Sensor Replacement - Bank 1 (Right Side) Exhaust (See: Powertrain Management/Computers and Control

Systems/Camshaft Position Sensor/Service and Repair/Camshaft Position Sensor Replacement - Bank 1 (Right Side) Exhaust)

* Camshaft Position Sensor Replacement - Bank 2 (Left Side) Intake (See: Powertrain Management/Computers and Control

Systems/Camshaft Position Sensor/Service and Repair/Camshaft Position Sensor Replacement - Bank 2 (Left Side) Intake)

* Camshaft Position Sensor Replacement - Bank 2 (Left Side) Exhaust (See: Powertrain Management/Computers and Control

Systems/Camshaft Position Sensor/Service and Repair/Camshaft Position Sensor Replacement - Bank 2 (Left Side) Exhaust)

* Accelerator Pedal Position Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Accelerator Pedal Position

Sensor/Service and Repair)

* Throttle Body Assembly Replacement (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Throttle Body/Service and

Repair/Removal and Replacement)Throttle Body Assembly Replacement (LLT) (See: Powertrain Management/Fuel Delivery and Air

Induction/Throttle Body/Service and Repair/Removal and Replacement)

* Crankshaft Position Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Crankshaft Position

Sensor/Service and Repair)

* Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement (See: Heating and Air Conditioning/Refrigerant Pressure Sensor /

Switch/Service and Repair)

* Clutch Pedal Position Switch Replacement (See: Powertrain Management/Transmission Control Systems/Sensors and Switches -

Transmission and Drivetrain/Sensors and Switches - M/T/Clutch Pedal Position Sensor / Switch/Service and Repair)

P0658

DTC P0658 or P0659

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

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2010 Cadillac Truck SRX AWD V6-3.0L Page 620

Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Verification

Verify none of the following DTCs are set:

* DTC B3109

* DTC B3110

* DTC B3111

* DTC B3112

* DTC B3113

If any of the DTCs are set, replace the battery in the appropriate keyless entry transmitter. Operate the transmitter 3 consecutive times. If the DTC

resets, replace the keyless entry transmitter.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Replacing Keys (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Service and Repair/Replacing Keys)

B3113

DTC B3109-B3113

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions)provides an overview of each diagnostic category.

DTC Descriptors

DTC B3109 00

- Keyless Entry Transmitter 1 Battery

DTC B3110 00

- Keyless Entry Transmitter 2 Battery

DTC B3111 00

- Keyless Entry Transmitter 3 Battery

DTC B3112 00

- Keyless Entry Transmitter 4 Battery

DTC B3113 00

- Keyless Entry Transmitter 5 Battery

Circuit/System Description

With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the remote control

door lock receiver, along with the commanded keyless entry function. The remote control door lock receiver sends this to the body control module

(BCM) to perform the requested function.

Conditions for Running the DTC

A keyless transmitter button is pressed.

Conditions for Setting the DTC

3 consecutive low battery signals are received from the same transmitter.

Action Taken When the DTC Sets

The keyless entry system is inoperative.

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2010 Cadillac Truck SRX AWD V6-3.0L Page 898

Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Verification

Ignition ON, observe the scan tool EBCM Wheel Speed Sensor parameters. The reading should be the same speed on all sensors when driving in a

straight line at a speed greater than 20 km/h (13 MPH).

Circuit/System Testing

1. Ignition ON, verify that DTC C0035, C0040, C0045, or C0050 is not present in the EBCM.

瀚慖f any listed DTC is present, refer to DTC C0035, C0040, C0045, or C0050 (See: C Code Charts/C0035) to diagnose that DTC prior to

this diagnostic.

2. Replace the K17 Electronic Brake Control Module (EBCM) and verify the DTC does not reset.

瀚慖f the DTC resets, replace the module that set the DTC.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning)for module replacement, setup and programming

C1226

DTC C1207-C1210, C1221-C1228, or C1232-C1235

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions)provides an overview of each diagnostic category.

DTC Descriptor

DTC C1207 00

- Left Front Wheel Speed Sensor Circuit High Input Malfunction

DTC C1208 00

- Right Front Wheel Speed Sensor Circuit High Input Malfunction

DTC C1209 00

- Left Rear Wheel Speed Sensor Circuit High Input Malfunction

DTC C1210 00

- Right Rear Wheel Speed Sensor Circuit High Input Malfunction

DTC C1221 00

- Left Front Wheel Speed Sensor Circuit Malfunction

DTC C1222 00

- Right Front Wheel Speed Sensor Circuit Malfunction

DTC C1223 00

- Left Rear Wheel Speed Sensor Circuit Malfunction

DTC C1224 00

- Right Rear Wheel Speed Sensor Circuit Malfunction

DTC C1225 00

- Left Front Wheel Speed Sensor Circuit Performance Malfunction

DTC C1226 00

- Right Front Wheel Speed Sensor Circuit Performance Malfunction

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2010 Cadillac Truck SRX AWD V6-3.0L Page 862

Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Testing

1. Verify that no DTCs are present in the ECM.

瀚慖f any DTC is present, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code Descriptions/Diagnostic

Trouble Code (DTC) List - Vehicle) to diagnose that DTC prior to this diagnostic.

2. Replace the K19 suspension control module and verify the DTC does not reset.

瀚慖f the DTC resets replace the K20 engine control module (ECM).

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning)for control module replacement, setup and programming

C0750

DTC C0750, C0755, C0760, or C0765

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions)provides an overview of each diagnostic category.

DTC Descriptor

DTC C0750 03

- Left Front Tire Pressure Sensor Low Voltage

DTC C0750 29

- Left Front Tire Pressure Sensor Too Few Pulses

DTC C0750 39

- Left Front Tire Pressure Sensor Internal Malfunction

DTC C0755 03

- Right Front Tire Pressure Sensor Low Voltage

DTC C0755 29

- Right Front Tire Pressure Sensor Too Few Pulses

DTC C0755 39

- Right Front Tire Pressure Sensor Internal Malfunction

DTC C0760 03

- Left Rear Tire Pressure Sensor Low Voltage

DTC C0760 29

- Left Rear Tire Pressure Sensor Too Few Pulses

DTC C0760 39

- Left Rear Tire Pressure Sensor Internal Malfunction

DTC C0765 03

- Right Rear Tire Pressure Sensor Low Voltage

DTC C0765 29

- Right Rear Tire Pressure Sensor Too Few Pulses

DTC C0765 39

- Right Rear Tire Pressure Sensor Internal Malfunction

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2010 Cadillac Truck Escalade RWD V8-6.2L Page 1833

Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Verification

1. Ignition ON, observe the DTC information with a scan tool. Verify no B52 HO2S heater DTCs are set.

瀚慖f a B52 HO2S heater DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code

Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle).

2. Engine running, observe the appropriate scan tool B52 HO2S voltage parameter. The reading should be within the range of 50-1,050 mV.

3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the

conditions that you observed from the Freeze Frame/Failure Records data.

Circuit/System Testing

Note: All modules must be powered down or misdiagnosis may result.

1. Ignition OFF, disconnect the harness connector at the appropriate B52 HO2S.

2. Ignition OFF, all vehicle systems OFF, this may take up to 2 minutes, test for less than 5 ohm between the low reference circuit terminal A

and ground.

瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the ECM.

3. Ignition ON, verify the appropriate scan tool B52 HO2S parameter is approximately 450 mV.

瀚慖f less than the specified value, test the signal circuit for a short to ground. If the circuit tests normal, replace the K20 ECM.

瀚慖f greater than the specified value, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K20 ECM.

4. Ignition ON, install a 3 A fused jumper wire between the signal circuit terminal B and ground. Verify the appropriate scan tool B52 HO2S

parameter is less than 60 mV.

瀚慖f greater than the specified range, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the K20 ECM.

5. If all circuits test normal, replace the appropriate B52 HO2S.

Repair Instructions

Caution: Refer to Heated Oxygen Sensor Resistance Learn Reset Caution (See: Powertrain Management/Computers and Control

Systems/Oxygen Sensor/Service Precautions/Heated Oxygen Sensor Resistance Learn Reset Caution).

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (1500 Series) (See: Powertrain Management/Computers and Control

Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (2500 Series) (See: Powertrain

Management/Computers and Control Systems/Oxygen Sensor/Service and Repair)

* Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (1500 Series) (See: Powertrain Management/Computers and Control

Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (2500 Series) (See: Powertrain

Management/Computers and Control Systems/Oxygen Sensor/Service and Repair)

* Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (1500 Series) (See: Powertrain Management/Computers and Control

Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (2500 Series) (See: Powertrain

Management/Computers and Control Systems/Oxygen Sensor/Service and Repair)

* Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 (1500 Series) (See: Powertrain Management/Computers and Control

Systems/Oxygen Sensor/Service and Repair)Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 (2500 Series) (See: Powertrain

Management/Computers and Control Systems/Oxygen Sensor/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning)for ECM replacement, setup, and programming

P0160

DTC P0134, P0140, P0154, or P0160

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

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2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 753

Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Verification

Perform the Programming and Setup procedure for the control module that set DTC B3902. Verify the DTC does not reset after programming.

If the DTC resets, replace the appropriate control module.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning)for instrument cluster, EBCM, HVAC control module,

SDM, ECM, or steering column lock control module replacement, setup, and programming

C0000

DTC C0000

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptor

DTC C0000 71

- Vehicle Speed Information Circuit Invalid Data

Circuit/System Description

The wheel speeds are detected by active wheel speed sensors. Each wheel speed sensor receives a 12 V reference voltage from the electronic brake

control module (EBCM) and provides an alternating current square wave signal to the EBCM. As the wheel spins, the EBCM uses the frequency of

the square wave signal to calculate the wheel speed. The EBCM sends the wheel speed information as a high speed controller area network (CAN)

serial data message. Modules connected to the high speed CAN circuit monitor for the vehicle speed information.

Conditions for Running the DTC

System voltage is between 9-16 V.

Conditions for Setting the DTC

A supervised periodic message that includes the wheel speed serial data has not been received.

Action Taken When the DTC Sets

The electronic suspension control is disabled for the duration of the ignition cycle.

Conditions for Clearing the DTC

A current DTC clears when the diagnostic runs and passes.

Reference Information

Schematic Reference

Electronic Suspension Control Schematics (See: Steering and Suspension/Suspension/Suspension Control ( Automatic - Electronic

)/Diagrams/Electrical Diagrams)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

Electronic Suspension Control Description and Operation (See: Steering and Suspension/Suspension/Suspension Control ( Automatic - Electronic

)/Description and Operation)

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Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Special Tools

J-46079 Tire Pressure Monitor Diagnostic Tool

Circuit/System Verification

1. Using the J-46079 , activate each tire pressure sensor and record each sensors transmission data and physical location. Verify J-46079

displays the 8-digit ID number, accurate tire pressure +/- 27.6 kPa (4 psi), Learn Mode, and at least a 1/4 graph signal strength displayed.

瀚慖f any of the parameters listed above are not displayed, replace the suspect tire pressure sensor.

2. With the scan tool, verify tire pressure sensors ID and locations displayed on the scan tool match the IDs and locations recorded from the

special tool.

瀚慖f the IDs and locations do not match, perform the Tire Pressure Indicator Sensor Learn (See: Instrument Panel, Gauges and Warning

Indicators/Tire Monitoring System/Tire Pressure Sensor/Testing and Inspection).

3. Enable the TPM learn mode. Use the J-46079 in simulate mode to learn 4 simulated sensor transmissions into the BCM. Verify that all 4

simulated sensor locations, IDs, and tire pressures displayed on the TPM special tool match the corresponding scan tool parameters

displayed.

瀚慖f the scan tool does not match, replace the K9 BCM.

4. Test drive the vehicle above 40 km/h (25 mph) for greater than 2 minutes. With the scan tool, observe the suspect Pressure Sensor Mode data

parameter. Verify the sensor mode changes to Rolling.

瀚慖f the Pressure Sensor Mode does not change, replace the suspect tire pressure sensor.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Tire Pressure Indicator Sensor Replacement (See: Instrument Panel, Gauges and Warning Indicators/Tire Monitoring System/Tire Pressure

Sensor/Service and Repair)

* Tire Pressure Indicator Sensor Learn (See: Instrument Panel, Gauges and Warning Indicators/Tire Monitoring System/Tire Pressure

Sensor/Testing and Inspection)

* Control Module References (See: Testing and Inspection/Programming and Relearning)for BCM replacement, setup and programming.

C0775

DTC C0775

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions)provides an overview of each diagnostic category.

DTC Descriptor

DTC C0775 00

- Low Tire Pressure System Sensors Malfunction

Circuit/System Description

If the tire pressure sensor learn procedure has not been performed, the tire pressure monitor indicator icon on the instrument panel cluster (IPC) will

flash for 1 minute and then remain illuminated after the ignition switch is cycled ON and the IPC bulb check is complete. If equipped, the driver

information center (DIC) will also display a service tire monitor type message. Under these circumstances, DTC C0775 will be set and the tire

pressure sensor learn procedure will need to be performed for the system to function correctly.

Conditions for Running the DTC

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Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Testing

1. Verify that no DTCs are present in the ECM.

瀚慖f any DTC is present, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code Descriptions/Diagnostic

Trouble Code (DTC) List - Vehicle) to diagnose that DTC prior to this diagnostic.

2. Replace the K19 suspension control module and verify the DTC does not reset.

瀚慖f the DTC resets replace the K20 engine control module (ECM).

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning)for control module replacement, setup and programming

C0750

DTC C0750, C0755, C0760, or C0765

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions)provides an overview of each diagnostic category.

DTC Descriptor

DTC C0750 03

- Left Front Tire Pressure Sensor Low Voltage

DTC C0750 29

- Left Front Tire Pressure Sensor Too Few Pulses

DTC C0750 39

- Left Front Tire Pressure Sensor Internal Malfunction

DTC C0755 03

- Right Front Tire Pressure Sensor Low Voltage

DTC C0755 29

- Right Front Tire Pressure Sensor Too Few Pulses

DTC C0755 39

- Right Front Tire Pressure Sensor Internal Malfunction

DTC C0760 03

- Left Rear Tire Pressure Sensor Low Voltage

DTC C0760 29

- Left Rear Tire Pressure Sensor Too Few Pulses

DTC C0760 39

- Left Rear Tire Pressure Sensor Internal Malfunction

DTC C0765 03

- Right Rear Tire Pressure Sensor Low Voltage

DTC C0765 29

- Right Rear Tire Pressure Sensor Too Few Pulses

DTC C0765 39

- Right Rear Tire Pressure Sensor Internal Malfunction

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2010 Cadillac CTS Sedan AWD V6-3.6L Page 1627

Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Verification

1. Ignition ON, observe the DTC information with a scan tool. DTC P0641, P0642, P0643, P0651, P0652, P0653, P0697, P0698, or P0699

should not set.

2. Observe the appropriate scan tool 5 V Reference Circuit Test Status parameter. The parameter should display OK or Not Run.

3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the

conditions that you observed from the Freeze Frame/Failure Records data.

Circuit/System Testing

Note: Additional DTCs will set when disconnecting the components.

1. Ignition OFF, disconnect the harness connector of all appropriate sensors for the applicable DTC. Refer to Diagnostic Aids.

2. Ignition ON, test for 4.8-5.2 V between each of the affected 5 V reference circuits and ground.

瀚慖f the voltage is less than the specified range, test for a short to ground or for an open between the ECM and the affected circuit splice. If

the circuit tests normal, replace the K20 ECM.

瀚慖f the voltage is greater than the specified range, test for a short to voltage on the 5 V reference circuit. If the circuit tests normal, replace

the K20 ECM.

Note: A short to voltage on the signal circuit of certain components may cause this DTC to set.

3. Connect each component associated with the affected 5 V reference circuit one at a time while monitoring the appropriate scan tool 5 V

Reference Circuit Status parameter. The parameter should continue to display OK.

瀚慖f the parameter displays Fault when a component is connected, test the signal circuit of that component for a short to voltage. If the

circuit tests normal, replace the component.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Fuel Tank Pressure Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Fuel Tank Pressure Sensor/Service

and Repair)

* Fuel Pressure Sensor Replacement - Fuel Injection Fuel Rail (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel

Pressure Sensor/Switch/Service and Repair)Fuel Pressure Sensor Replacement - Fuel Injection Fuel Rail (LLT) (See: Powertrain

Management/Fuel Delivery and Air Induction/Fuel Pressure Sensor/Switch/Service and Repair)

* Engine Oil Pressure Sensor and/or Switch Replacement (See: Engine, Cooling and Exhaust/Engine/Engine Lubrication/Oil Pressure

Sensor/Service and Repair)

* Camshaft Position Sensor Replacement - Bank 1 (Right Side) Intake (See: Powertrain Management/Computers and Control

Systems/Camshaft Position Sensor/Service and Repair/Camshaft Position Sensor Replacement - Bank 1 (Right Side) Intake)

* Camshaft Position Sensor Replacement - Bank 1 (Right Side) Exhaust (See: Powertrain Management/Computers and Control

Systems/Camshaft Position Sensor/Service and Repair/Camshaft Position Sensor Replacement - Bank 1 (Right Side) Exhaust)

* Camshaft Position Sensor Replacement - Bank 2 (Left Side) Intake (See: Powertrain Management/Computers and Control

Systems/Camshaft Position Sensor/Service and Repair/Camshaft Position Sensor Replacement - Bank 2 (Left Side) Intake)

* Camshaft Position Sensor Replacement - Bank 2 (Left Side) Exhaust (See: Powertrain Management/Computers and Control

Systems/Camshaft Position Sensor/Service and Repair/Camshaft Position Sensor Replacement - Bank 2 (Left Side) Exhaust)

* Accelerator Pedal Position Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Accelerator Pedal Position

Sensor/Service and Repair)

* Throttle Body Assembly Replacement (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Throttle Body/Service and

Repair/Removal and Replacement)Throttle Body Assembly Replacement (LLT) (See: Powertrain Management/Fuel Delivery and Air

Induction/Throttle Body/Service and Repair/Removal and Replacement)

* Crankshaft Position Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Crankshaft Position

Sensor/Service and Repair)

* Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement (See: Heating and Air Conditioning/Refrigerant Pressure Sensor /

Switch/Service and Repair)

* Clutch Pedal Position Switch Replacement (See: Powertrain Management/Transmission Control Systems/Sensors and Switches -

Transmission and Drivetrain/Sensors and Switches - M/T/Clutch Pedal Position Sensor / Switch/Service and Repair)

P0698

DTC P0641-P0643, P0651-P0653, or P0697-P0699 (ECM, LLT)

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

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2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 620

Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Verification

Verify none of the following DTCs are set:

* DTC B3109

* DTC B3110

* DTC B3111

* DTC B3112

* DTC B3113

If any of the DTCs are set, replace the battery in the appropriate keyless entry transmitter. Operate the transmitter 3 consecutive times. If the DTC

resets, replace the keyless entry transmitter.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Replacing Keys (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Service and Repair/Replacing Keys)

B3113

DTC B3109-B3113

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions)provides an overview of each diagnostic category.

DTC Descriptors

DTC B3109 00

- Keyless Entry Transmitter 1 Battery

DTC B3110 00

- Keyless Entry Transmitter 2 Battery

DTC B3111 00

- Keyless Entry Transmitter 3 Battery

DTC B3112 00

- Keyless Entry Transmitter 4 Battery

DTC B3113 00

- Keyless Entry Transmitter 5 Battery

Circuit/System Description

With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the remote control

door lock receiver, along with the commanded keyless entry function. The remote control door lock receiver sends this to the body control module

(BCM) to perform the requested function.

Conditions for Running the DTC

A keyless transmitter button is pressed.

Conditions for Setting the DTC

3 consecutive low battery signals are received from the same transmitter.

Action Taken When the DTC Sets

The keyless entry system is inoperative.

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2010 Cadillac CTS Sedan AWD V6-3.6L Page 1215

Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Verification

Ignition ON, command the fuel pump ON and OFF using the scan tool ECM fuel pump output control. The fuel pump should turn ON and OFF.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the G12 fuel pump.

2. Connect a test lamp between the control circuit terminal 1 and ground.

3. Ignition ON, command the G12 fuel pump ON and OFF with a scan tool. The test lamp should turn ON and OFF, as commanded.

瀚慖f the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K27 fuel pump control

module.

瀚慖f the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace

the K27 fuel pump control module.

4. Ignition OFF, connect a test lamp between the control circuit terminal 1 and the low reference circuit terminal 2.

5. Ignition ON, command the G12 fuel pump ON with a scan tool. The test lamp should illuminate.

瀚慖f the test lamp does not illuminate, test the low reference circuit terminal 2 for a short to voltage or an open/high resistance. If the circuit

tests normal, replace the K27 fuel pump control module.

6. If all circuits test normal, replace the G12 fuel pump.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Fuel Tank Fuel Pump Module Replacement - Right Side (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Pump/Service

and Repair/Fuel Tank Fuel Pump Module Replacement - Right Side)

* Control Module References (See: Testing and Inspection/Programming and Relearning)for fuel pump control module replacement, setup,

and programming

P258A

DTC P258A-P258D

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an

overview of the diagnostic approach.

* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure

Instructions) provides an overview of each diagnostic category.

DTC Descriptors

DTC P258A

- Vacuum Pump Relay Control Circuit

DTC P258B

- Vacuum Pump Performance

DTC P258C

- Vacuum Pump Relay Control Circuit Low Voltage

DTC P258D

- Vacuum Pump Relay Control Circuit High Voltage

Diagnostic Fault Information

2010 Cadillac CTS Sedan AWD V6-3.6L Page 1832

2010 Cadillac CTS Sedan AWD V6-3.6L Page 1832

Control Module References (See: Testing and Inspection/Programming and Relearning)for scan tool information

Circuit/System Verification

1. With the engine at normal operating temperature, raise the engine speed to 2,000 RPM for 10 s. DTCs P0010, P0013, P0020, P0023, P2088,

P2089, P2090, P2091, P2092, P2093, P2094, or P2095 should not set.

2. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the

conditions that you observed from the Freeze Frame/Failure Records data.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the appropriate Camshaft Position Actuator Solenoid Valve.

2. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 1 and ground.

瀚慖f the test lamp does not illuminate, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal and the

ignition circuit fuse is open, test all the components connected to the ignition circuit and replace as necessary.

3. Connect a DMM, set on the diode setting, between the control circuit terminal 2 and ground. The voltage should be greater than 2 V.

瀚慖f the DMM displays OL, test the control circuit for a short to voltage or an open/high resistance. If the circuit/connections test normal,

replace the Engine Control Module.

瀚慖f less than the specified value, test the control circuit for a short to ground. If the circuit tests normal, replace the Engine Control Module.

4. Command the Camshaft Position Actuator Solenoid Valve ON and OFF with a scan tool. The DMM should transition from greater than 2 V

when commanded OFF to less than 1 V, when commanded ON.

瀚慖f the circuit voltage does not correspond to the specified values, replace the Engine Control Module.

5. If all circuits/connections test normal, test or replace the appropriate Camshaft Position Actuator Solenoid Valve.

Component Testing

1. Ignition OFF, disconnect the harness connector at the appropriate Camshaft Position Actuator Solenoid Valve.

2. Test for 7-12 ohm between the control terminal 2 and the ignition terminal 1 of the Camshaft Position Actuator Solenoid Valve.

瀚慖f not within the specified range, replace the Camshaft Position Actuator Solenoid Valve.

3. Test for infinite resistance between each terminal and the Camshaft Position Actuator Solenoid Valve housing.

瀚慖f not the specified value, replace the Camshaft Position Actuator Solenoid Valve.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Intake (See: Engine, Cooling and

Exhaust/Engine/Actuators and Solenoids - Engine/Variable Valve Timing Solenoid/Service and Repair/Camshaft Position Actuator Solenoid

Valve Solenoid Replacement - Bank 1 (Right Side) Intake)

* Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Exhaust (See: Engine, Cooling and

Exhaust/Engine/Actuators and Solenoids - Engine/Variable Valve Timing Solenoid/Service and Repair/Camshaft Position Actuator Solenoid

Valve Solenoid Replacement - Bank 1 (Right Side) Exhaust)

* Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 2 (Left Side) Intake (See: Engine, Cooling and

Exhaust/Engine/Actuators and Solenoids - Engine/Variable Valve Timing Solenoid/Service and Repair/Camshaft Position Actuator Solenoid

Valve Solenoid Replacement - Bank 2 (Left Side) Intake)

* Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 2 (Left Side) Exhaust (See: Engine, Cooling and

Exhaust/Engine/Actuators and Solenoids - Engine/Variable Valve Timing Solenoid/Service and Repair/Camshaft Position Actuator Solenoid

Valve Solenoid Replacement - Bank 2 (Left Side) Exhaust)

* Control Module References (See: Testing and Inspection/Programming and Relearning)for Engine Control Module replacement, setup, and

programming

P2095

DTC P0010, P0013, P0020, P0023, P2088, P2089, P2090, P2091, P2092, P2093, P2094, or P2095 (Without LF1)

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System

Check - Vehicle) prior to using this diagnostic procedure.