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Friday, January 29, 2021

2010 Cadillac CTS Sedan AWD V6-3.6L Page 281

6. If all circuits test normal, replace the headlamp control module.

Repair Instructions

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

* Headlamp Leveling Front Suspension Height Sensor Replacement (See: Lighting and Horns/Headlamp/Service and Repair/Removal and

Replacement/Headlamp Leveling Front Suspension Height Sensor Replacement)

* Headlamp Leveling Rear Suspension Height Sensor Replacement (See: Lighting and Horns/Headlamp/Service and Repair/Removal and

Replacement/Headlamp Leveling Rear Suspension Height Sensor Replacement)

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

and programming

Immobilizer With Y41

DTC B1015 (with Y41)

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 B1015 00

- Vehicle Identification Number (VIN) Information Error

Circuit/System Description

After a loss of battery power has been restored, the remote control door lock receiver (RCDLR) will perform a check on the stored vehicle

identification number (VIN). If the VIN is CORRECT, the RCDLR will run the VIN Timer for a programmable length of time, typically 10

minutes. The RCDLR will send a message via the serial data circuit to the instrument panel cluster (IPC) to illuminate the SECURITY indicator.

After the VIN Timer has timed out, the security indicator will turn OFF. If the VIN is INCORRECT, the RCDLR will send the fuel disable

password to the engine control module (ECM), via the serial data circuit. The immobilizer system considers this to be a tamper and will not allow

the vehicle to start. The RCDLR will send a message via the serial data circuit to the IPC to flash the SECURITY indicator.

Substitution detection is based on correct response from the following modules: instrument panel cluster (IPC), export body control module

(XBCM), driver door module (DDM), passenger door module (PDM). The modules compare their VIN to that stored in the VIN master on every

ignition ON cycle and report their status to the theft deterrent module.

Conditions for Running the DTC

Ignition ON

Conditions for Setting the DTC

* The VIN check flag of the RCDLR is true.

* The RCDLR has determined that the battery has been reconnected after a battery disconnect.

Action Taken When the DTC Sets

* The vehicle will not start.

* The RCDLR sends the fuel disable message via the serial data circuit to the ECM.

* The RCDLR will run the VIN Timer for a programmable length of time, typically 10 minutes.

* The RCDLR sends a message to the IPC to illuminate the SECURITY indicator.

Conditions for Clearing the DTC

The RCDLR clears the current DTC when the correct VIN information is present.

Reference Information

Schematic Reference

Immobilizer Schematics (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Diagrams/Electrical Diagrams/Immobilizer

2010 Cadillac Truck SRX AWD V6-3.0L Page 131

B0014 02, B0015 02, B0016 02, B0019 02, B0020 02, B0021 02, B0022 02, B0023 02

The air bag or retractor pretensioner control circuit is shorted to ground for 2 seconds.

B0014 04, B0015 04, B0016 04, B0019 04, B0020 04, B0021 04, B0022 04, B0023 04

The air bag or retractor pretensioner control circuit is open for 2 seconds.

B0014 0D, B0015 0D, B0016 0D, B0019 0D, B0020 0D, B0021 0D, B0022 0D, B0023 0D

The air bag or retractor pretensioner deployment loop resistance is greater than 4.2 ohm for 2 seconds.

B0014 0E, B0015 0E, B0016 0E, B0019 0E, B0020 0E, B0021 0E, B0022 0E, B0023 0E

The air bag or retractor pretensioner deployment loop resistance is less than 1.4 ohm for 2 seconds.

Action Taken When the DTC Sets

* The SDM requests the instrument cluster to illuminate the AIR BAG indicator.

* The SDM will store a DTC, however if an event occurs the system will still attempt deployments.

Conditions for Clearing the DTC

* The condition for setting the DTC no longer exists.

* A history DTC will clear once 100 malfunction-free ignition cycles have occurred.

Diagnostic Aid

Note: The following diagnostic aids apply for both current and history DTCs.

An incorrectly installed CPA or incorrectly seated connector can cause a shorting bar to short both control circuits together. Check the connectors

and CPAs if a DTC with symptom byte 02 or 0E is set, to ensure the shorting bars are not causing the circuits to be shorted together. Shorting bars

are used in the locations listed below:

* Passenger instrument panel air bag

* Driver and passenger seat side air bags

* Left and right roof rail air bags

* Driver and passenger seat belt retractor pretensioners

* SDM

* Inline connectors - on the side of the harness connector

* Harness side of the SDM connector

Terminal fretting or incorrectly seated connector can cause an open/high resistance condition. Check the circuit terminals for fretting or incorrectly

seated connector if a DTC with symptom byte 04 or 0D is set. If DTCs of deployment loops which are in the seat DTC B0014 and B0021, can

occur because of stress or damage to the harness due to seat movement. Move the seat to the full extend of travel while using the scan tool to

observe deployment type loop parameters.

If the pretensioner, passenger instrument panel or side air bag has inflated under unexpected conditions and/or DTC with symptom byte 01 is set,

check both control circuits for a short to voltage.

Reference Information

Schematic Reference

SIR Schematics (See: Diagrams/Electrical Diagrams/Air Bag Systems)

Connector End View Reference

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

Description and Operation

SIR System Description and Operation (See: Restraints and Safety Systems/Air Bag Systems/Description and Operation/SIR System)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

2010 Cadillac CTS Sedan AWD V6-3.6L Page 888

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit Testing/Circuit Testing)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit

Testing/Testing for Intermittent Conditions and Poor Connections)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Connector Repairs/Connector Repairs)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Wiring Repairs/Wiring Repairs)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code

(DTC) Type Definitions)

Scan Tool Reference

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

Circuit/System Testing

Note: Verify that the fuel tank is not empty. Only perform this diagnostic if there is at least 2 gallons of fuel in the fuel tank. Clear the DTC, and

start and run the engine. Verify that the DTC P0118B resets before proceeding with the circuit system testing. If the DTC does not reset, refer to

diagnostic aids.

1. Ignition OFF, disconnect the harness connector at the B47 fuel pressure sensor.

2. Ignition OFF, test for less than 1 ohm between the low reference circuit terminal 2 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 K27

fuel pump flow control module.

3. Ignition ON, test for 4.8-5.2 V between the B47 fuel pressure sensor 5 V reference circuit terminal 3 and ground.

瀚慖f less than the specified range, test the 5 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal,

replace the K27 fuel pump flow control module.

瀚慖f greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the K27 fuel

pump flow control module.

4. Verify the scan tool 5 V reference is less than 1 V.

瀚慖f greater than the specified range, test the signal circuit terminal 1 for a short to voltage. If the circuit tests normal, replace the K27 fuel

pump flow control module.

5. Install a 3 A fused jumper wire between the signal circuit terminal 1 and the 5 V reference circuit terminal 3. Verify the scan tool 5 V

reference is greater than 4.8 V.

瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace

the K27 fuel pump flow control module.

6. If all circuits test normal, replace the B47 fuel pressure sensor.

Repair Instructions

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

* 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)

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

and programming

P018C

DTC P018B-P018D

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.

2010 Cadillac Truck SRX AWD V6-3.0L Page 679

pedals soft stop positions must be learned.

Conditions for Running the DTC

The memory seat control module must be powered.

Conditions for Setting the DTC

This DTC will set if the pedals actuator soft stops are not learned.

Action Taken When the DTC Sets

Manual and memory adjustable pedals operation will be disabled.

Conditions for Clearing the DTC

* The current DTC will become a history DTC when the fault is no longer present and the ignition has been cycled.

* The history DTC will clear after 50 consecutive fault-free ignition cycles have occurred.

Reference Information

Schematic Reference

Adjustable Pedal Schematics (See: Accessories and Optional Equipment/Pedal Positioning System/Diagrams/Electrical Diagrams)

Connector End View Reference

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

Description and Operation

Adjustable Pedals Description and Operation (See: Accessories and Optional Equipment/Pedal Positioning System/Description and Operation)

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

Scan Tool Reference

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

Circuit/System Verification

1. Ignition ON, verify that no other adjustable pedal DTCs are set.

瀚慖f other adjustable pedal DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code

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

2. Observe the scan tool Adjustable Pedals soft stop Learn Status parameter. The parameter reading should be learned.

瀚慖f not the specified value, perform the scan tool Learn Adjustable Pedals Softstops procedure. Refer to Adjustable Pedal System

Calibration (See: Accessories and Optional Equipment/Pedal Positioning System/Service and Repair/Procedures). If the DTC resets,

replace the K40 memory seat 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 memory seat control module replacement, setup, and

programming

B3622

DTC B3622

Diagnostic Instructions

2010 Cadillac CTS Sedan AWD V6-3.6L Page 109

DTC B0016 01

- Left Roof Rail Deployment Loop Stage 1 Short to Battery

DTC B0016 02

- Left Roof Rail Deployment Loop Stage 1 Short to Ground

DTC B0016 04

- Left Roof Rail Deployment Loop Stage 1 Open Circuit

DTC B0016 0D

- Left Roof Rail Deployment Loop Stage 1 Resistance Above Threshold

DTC B0016 0E

- Left Roof Rail Deployment Loop Stage 1 Resistance Below Threshold

DTC B0019 01

- Passenger Frontal Deployment Loop Stage 1 Short to Battery

DTC B0019 02

- Passenger Frontal Deployment Loop Stage 1 Short to Ground

DTC B0019 04

- Passenger Frontal Deployment Loop Stage 1 Open Circuit

DTC B0019 0D

- Passenger Frontal Deployment Loop Stage 1 Resistance Above Threshold

DTC B0019 0E

- Passenger Frontal Deployment Loop Stage 1 Resistance Below Threshold

DTC B0020 01

- Passenger Frontal Deployment Loop Stage 2 Short to Battery

DTC B0020 02

- Passenger Frontal Deployment Loop Stage 2 Short to Ground

DTC B0020 04

- Passenger Frontal Deployment Loop Stage 2 Open Circuit

DTC B0020 0D

- Passenger Frontal Deployment Loop Stage 2 Resistance Above Threshold

DTC B0020 0E

- Passenger Frontal Deployment Loop Stage 2 Resistance Below Threshold

DTC B0021 01

- Passenger Side Deployment Loop Short to Battery - Seat Air Bag

DTC B0021 02

- Passenger Side Deployment Loop Short to Ground - Seat Air Bag

DTC B0021 04

- Passenger Side Deployment Loop Open Circuit - Seat Air Bag

DTC B0021 0D

- Passenger Side Deployment Loop Resistance Above Threshold - Seat Air Bag

DTC B0021 0E

- Passenger Side Deployment Loop Resistance Below Threshold - Seat Air Bag

DTC B0022 01

- Passenger Pretensioner Deployment Loop Short to Battery - Retractor

DTC B0022 02

- Passenger Pretensioner Deployment Loop Short to Ground - Retractor

DTC B0022 04

- Passenger Pretensioner Deployment Loop Open Circuit - Retractor

2010 Cadillac Truck SRX AWD V6-3.0L Page 765

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 parking brake control module replacement, setup, and

programming

C0035

DTC C0035, C0040, C0045, or C0050

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 C0035 06

- Left Front Wheel Speed Sensor Circuit Low Voltage/Open

DTC C0035 0F

- Left Front Wheel Speed Sensor Circuit Signal Erratic

DTC C0035 18

- Left Front Wheel Speed Sensor Circuit Low Signal Amplitude

DTC C0035 5A

- Left Front Wheel Speed Sensor Circuit Not Plausible

DTC C0040 06

- Right Front Wheel Speed Sensor Circuit Low Voltage/Open

DTC C0040 0F

- Right Front Wheel Speed Sensor Circuit Signal Erratic

DTC C0040 18

- Right Front Wheel Speed Sensor Circuit Low Signal Amplitude

DTC C0040 5A

- Right Front Wheel Speed Sensor Circuit Not Plausible

DTC C0045 06

- Left Rear Wheel Speed Sensor Circuit Low Voltage/Open

DTC C0045 0F

- Rear Wheel Speed Sensor Circuit Signal Erratic

DTC C0045 18

- Left Rear Wheel Speed Sensor Circuit Low Signal Amplitude

DTC C0045 5A

- Left Rear Wheel Speed Sensor Circuit Not Plausible

DTC C0050 06

- Right Rear Wheel Speed Sensor Circuit Low Voltage/Open

DTC C0050 0F

- Right Rear Wheel Speed Sensor Circuit Signal Erratic

DTC C0050 18

- Right Rear Wheel Speed Sensor Circuit Low Signal Amplitude

DTC C0050 5A

- Right Rear Wheel Speed Sensor Circuit Not Plausible

2010 Cadillac CTS Sedan AWD V6-3.6L Page 783

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)

* Camshaft Position Actuator Replacement - Bank 1 (Right Side) Intake (See: Engine, Cooling and Exhaust/Engine/Camshaft, Lifters and

Push Rods/Camshaft/Service and Repair/Camshaft Position Actuator Replacement - Bank 1 (Right Side) Intake)

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

Push Rods/Camshaft/Service and Repair/Camshaft Position Actuator Replacement - Bank 1 (Right Side) Exhaust)

* Camshaft Position Actuator Replacement - Bank 2 (Left Side) Intake (See: Engine, Cooling and Exhaust/Engine/Camshaft, Lifters and Push

Rods/Camshaft/Service and Repair/Camshaft Position Actuator Replacement - Bank 2 (Left Side) Intake)

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

Push Rods/Camshaft/Service and Repair/Camshaft Position Actuator Replacement - Bank 2 (Left Side) Exhaust)

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

P000C

DTC P000A-P000D, P0011, P0014, P0021, or P0024 (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.

* 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 P000A

- Intake Camshaft Position System Slow Response Bank 1

DTC P000B

- Exhaust Camshaft Position System Slow Response Bank 1

DTC P000C

- Intake Camshaft Position System Slow Response Bank 2

DTC P000D

- Exhaust Camshaft Position System Slow Response Bank 2

DTC P0011

- Intake Camshaft Position System Performance Bank 1

DTC P0014

- Exhaust Camshaft Position System Performance Bank 1

DTC P0021

- Intake Camshaft Position System Performance Bank 2

DTC P0024

- Exhaust Camshaft Position System Performance Bank 2

Circuit/System Description

The camshaft position actuator system enables the Engine Control Module (ECM) to change the timing of the camshafts while the engine is

operating. The camshaft position actuator solenoid signal from the ECM is pulse width modulated (PWM). The ECM controls the camshaft position

actuator solenoid duty cycle by controlling the amount of solenoid ON time. The camshaft position actuator solenoid controls the advance or the

retard of each camshaft. The camshaft position actuator solenoid controls the oil flow that applies the pressure to advance or retard the camshafts.