2010 Cadillac Truck SRX FWD V6-3.0L Page 1688

2010 Cadillac Truck SRX FWD V6-3.0L Page 1688

* 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 P0722

- Output Speed Sensor (OSS) Circuit Low Voltage

DTC P0723

- Output Speed Sensor (OSS) Intermittent

Diagnostic Fault Information

Typical Scan Tool Data

Circuit/System Description

The output speed sensor (OSS) is a hall-effect type sensor. The sensor faces the front differential transfer drive gear. The sensor receives 8.3-9.3

volts on the OSS supply voltage circuit from the transmission control module (TCM). As the output shaft rotates, the sensor produces a signal

frequency based on the machined surface of the output shaft. This signal is transmitted through the OSS signal circuit to the TCM. The TCM uses

the OSS signal to determine line pressure, transmission shift patterns, torque converter clutch (TCC) slip speed and gear ratio.

Conditions for Running the DTC

P0722

* No DTCs P0101, P0102, P0103, P0121, P0122, P0123, P0716, P0717, or P0723.

* The selected range is not PARK or NEUTRAL.

* The transmission input speed is between 1,000-6,500 RPM.

* The engine speed is between 3,200-5,000 RPM.

* The calc. throttle position is greater than 5 percent.

* The throttle position signal is valid.

* The engine torque is greater than 35 Nm (26 lb ft).

* The engine torque signal is valid.

* The TFT is greater than -40掳C (-40掳F).

* The engine speed is greater than 400 RPM for 5 seconds.

* The ignition voltage is 8.6 volts or greater.

P0723

* No DTCs P0101, P0102, P0103, P0121, P0122, P0123, P0723, P0973, P0974, P0976, P0977.

* Greater than 5 seconds since last range change.

* The engine speed is greater than 400 RPM for 5 seconds.

* The ignition voltage is greater than 8.6 volts.

Conditions for Setting the DTC

2010 Cadillac Truck SRX FWD V6-3.0L Page 1009

2010 Cadillac Truck SRX FWD V6-3.0L Page 1009

* 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 P0016

- Crankshaft Position - Intake Camshaft Position Not Plausible Bank 1

DTC P0017

- Crankshaft Position - Exhaust Camshaft Position Not Plausible Bank 1

DTC P0018

- Crankshaft Position - Intake Camshaft Position Not Plausible Bank 2

DTC P0019

- Crankshaft Position - Exhaust Camshaft Position Not Plausible Bank 2

Circuit/System Description

The engine control module (ECM) uses the crankshaft position (CKP) sensor and the camshaft position (CMP) sensor pulses to monitor the

correlation between the crankshaft and the camshaft position. An improper relative position can be caused by either engine timing or improper

indexing of the camshaft drive chain.

Conditions for Running the DTC

* DTC P0335, P0336, P0338, P0340, P0341, P0345, P0346, P0365, P0366, P0390, P0391, P0641, and P0651 are not set.

* The engine is operating.

* The crankshaft and camshaft position signals are synchronized.

* The camshaft position actuator is in the parked position.

* DTC P0016, P0017, P0018, and P0019 run continuously once the above conditions are met.

Conditions for Setting the DTC

DTC P0016, P0017, P0018, or P0019

The ECM detects that one camshaft is mis-aligned with the crankshaft. The ECM detects one of the following conditions:

* Bank 1 intake camshaft is greater than 9 degrees retarded or 12 degrees advanced in relationship to the crankshaft.

* Bank 1 exhaust camshaft is greater than 10 degrees retarded or 13 degrees advanced in relationship to the crankshaft.

* Bank 2 intake camshaft is greater than 11 degrees retarded or 13 degrees advanced in relationship to the crankshaft.

* Bank 2 exhaust camshaft is greater than 9 degrees retarded or 13 degrees advanced in relationship to the crankshaft.

DTC P0016 and P0017

The ECM detects that both camshafts on bank 1 are mis-aligned with the crankshaft. The ECM detects the following conditions:

* Bank 1 intake camshaft is greater than 6 degrees retarded or 9 degrees advanced in relationship to the crankshaft.

* Bank 1 exhaust camshaft is greater than 6 degrees retarded or 9 degrees advanced in relationship to the crankshaft.

DTC P0018 and P0019

The ECM detects that both camshafts on bank 2 are mis-aligned with the crankshaft. The ECM detects the following conditions:

* Bank 2 intake camshaft is greater than 6 degrees retarded or 9 degrees advanced in relationship to the crankshaft.

* Bank 2 exhaust camshaft is greater than 7 degrees retarded or 9 degrees advanced in relationship to the crankshaft.

DTC P0016, P0017, P0018, and P0019

The ECM detects that all 4 camshafts are mis-aligned with the crankshaft. The ECM detects the following conditions:

* Bank 1 intake camshaft is greater than 6 degrees retarded or 9 degrees advanced in relationship to the crankshaft.

* Bank 1 exhaust camshaft is greater than 6 degrees retarded or 9 degrees advanced in relationship to the crankshaft.

* Bank 2 intake camshaft is greater than 6 degrees retarded or 8 degrees advanced in relationship to the crankshaft.

* Bank 2 exhaust camshaft is greater than 7 degrees retarded or 9 degrees advanced in relationship to the crankshaft.

Action Taken When the DTC Sets

DTCs P0016, P0017, P0018, and P0019 are type B DTCs.

2010 Cadillac Truck SRX FWD V6-3.0L Page 2067

2010 Cadillac Truck SRX FWD V6-3.0L Page 2067

* 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 P2600

- Auxiliary Coolant Pump Relay Control Circuit

DTC P2601

- Auxiliary Coolant Pump Performance

DTC P2602

- Auxiliary Coolant Pump Relay Control Circuit Low Voltage

DTC P2603

- Auxiliary Coolant Pump Relay Control Circuit High Voltage

Diagnostic Fault Information

Circuit/System Description

The auxiliary coolant pump and cooling fan system provides a measure of prevention against fuel vaporization due to excessive engine

temperatures. The engine control module (ECM) commands the auxiliary or after boil coolant pump ON when the engine coolant temperature

exceeds a calibrated value after engine shut down. The ECM applies ground to the coil side of the auxiliary pump printed circuit board (PCB) relay.

This energizes the coil and applies voltage directly to the pump motor through the switch side of the relay.

Conditions for Running the DTC

P2600, P2602, or P2603

* The engine speed is greater than 80 RPM.

* The ignition voltage is between 10-18 V.

* The ECM has commanded the pump ON and OFF at least once during the ignition cycle.

* The DTCs run continuously once the above conditions are met.

P2601

* DTC P0111, P0112, P0113, P0116, P0117, P0118, P0119, P2600, P2602, or P2603 is not set.

* The ignition is OFF.

* The engine coolant temperature (ECT) at engine shut down is warmer than 110 掳C (230 掳F).

* The auxiliary coolant pump is enabled.

* The DTC runs continuously once the conditions above are met for greater than 30 S.

Conditions for Setting the DTC

P2600

The ECM detects the pump control circuit is open. The condition exists for 4 S or a cumulative of 30 S.

P2601

The ECM detects that the ECT decreases less than 2 掳C (4 掳F) within 60 seconds. The condition exists for 4 S or a cumulative of 30 S.

P2602

The ECM detects the pump control circuit is shorted to ground. The condition exists for 4 seconds or a cumulative of 30 seconds.

P2603

The ECM detects the pump control circuit is shorted to voltage. The condition exists for 4 seconds or a cumulative of 30 seconds.

Action Taken When the DTC Sets

The DTCs are Type C DTCs.

2010 Cadillac CTS Sedan AWD V6-3.6L Page 227

2010 Cadillac CTS Sedan AWD V6-3.6L Page 227

* 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 the diagnostic category.

DTC Descriptors

DTC B0248 61

- Air Flow Control 3 Circuit Actuator Stuck

DTC B0268 61

- Air Flow Control 7 Circuit Actuator Stuck

DTC B0408 61

- Temperature Control 1 Circuit Actuator Stuck

DTC B0413 06

- Temperature Control 1 Feedback Circuit Short to Ground or Open

DTC B0418 61

- Temperature Control 2 Circuit Actuator Stuck

DTC B0423 06

- Temperature Control 2 Feedback Circuit Short to Ground or Open

DTC B3761 06

- Air Flow Control 3 Feedback Circuit Short to Ground or Open

DTC B3773 06

- Air Flow Control 7 Feedback Circuit Short to Ground or Open

Diagnostic Fault Information

2010 Cadillac CTS Sedan AWD V6-3.6L Page 549

2010 Cadillac CTS Sedan AWD V6-3.6L Page 549

* 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 B3055 00

- No Transponder Modulation or No Transponder

Circuit/System Description

When an ignition key is inserted into the ignition lock cylinder and the ignition is switched ON, the transponder embedded in the head of the key is

energized by the exciter coils surrounding the ignition lock cylinder. The energized transponder transmits a signal that contains its unique value,

which is received by the theft deterrent module (TDM). The TDM then compares this value to a value stored in memory. This stored value is the

learned key code. If the value is correct, the TDM will send the prerelease password via the serial data circuit to the engine control module (ECM).

If the learned key code does not match or a transponder value is not received, the TDM will send the start disable password to the ECM.

Conditions for Running the DTC

Ignition is in the Accessory or Run position.

Conditions for Setting the DTC

The TDM is unable to measure the ignition key transponder value.

Action Taken When the DTC Sets

* Vehicle starting will be disabled.

* The security indicator will be illuminated.

Conditions for Clearing the DTC

* A current DTC will be cleared when the TDM detects a valid transponder value from the ignition key.

* A history DTC will be cleared after 100 malfunction-free ignition cycles or when a scan tool is used to clear DTCs.

Reference Information

Schematic Reference

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

Schematics)

Connector End View Reference

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

Description and Operation

Immobilizer Description and Operation (without Y41) (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Description and

Operation/Immobilizer Description and Operation (Without Y41))Immobilizer Description and Operation (with Y41) (See: Accessories and

Optional Equipment/Antitheft and Alarm Systems/Description and Operation/Immobilizer Description and Operation (With Y41))

Electrical Information Reference

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

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

* 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)

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

Scan Tool Reference

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

Circuit/System Verification

Important: When using this diagnostic, more than one vehicle key is required to ensure proper diagnosis. If more than one key is not

available at the time of service, contact the customer and ask if any other keys can be provided for service. If unavailable, a new second

key can be created.

1. Inspect all available vehicle keys that they are correct vehicle keys.

瀚慖f not a correct vehicle key, replace the key.

2010 Cadillac CTS Sedan AWD V6-3.6L Page 662

2010 Cadillac CTS Sedan AWD V6-3.6L Page 662

* 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 C0035 02

- Left Front Wheel Speed Sensor Circuit Short to Ground

DTC C0035 05

- Left Front Wheel Speed Sensor Circuit Short to Battery or Open

DTC C0035 0F

- Left Front Wheel Speed Sensor Circuit Erratic

DTC C0035 18

- Left Front Wheel Speed Sensor Circuit Signal Amplitude Less Than Minimum

DTC C0040 02

- Right Front Wheel Speed Sensor Circuit Short to Ground

DTC C0040 05

- Right Front Wheel Speed Sensor Circuit Short to Battery or Open

DTC C0040 0F

- Right Front Wheel Speed Sensor Circuit Erratic

DTC C0040 18

- Right Front Wheel Speed Sensor Circuit Signal Amplitude Less Than Minimum

DTC C0045 02

- Left Rear Wheel Speed Sensor Circuit Short to Ground

DTC C0045 05

- Left Rear Wheel Speed Sensor Circuit Short to Battery or Open

DTC C0045 0F

- Left Rear Wheel Speed Sensor Circuit Erratic

DTC C0045 18

- Left Rear Wheel Speed Sensor Circuit Signal Amplitude Less Than Minimum

DTC C0050 02

- Right Rear Wheel Speed Sensor Circuit Short to Ground

DTC C0050 05

- Right Rear Wheel Speed Sensor Circuit Short to Battery or Open

DTC C0050 0F

- Right Rear Wheel Speed Sensor Circuit Erratic

DTC C0050 18

- Right Rear Wheel Speed Sensor Circuit Signal Amplitude Less Than Minimum

Diagnostic Fault Information

2010 Cadillac CTS Sedan AWD V6-3.6L Page 943

2010 Cadillac CTS Sedan AWD V6-3.6L Page 943

* 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 P0030

- HO2S Heater Control Circuit Bank 1 Sensor 1

DTC P0036

- HO2S Heater Control Circuit Bank 1 Sensor 2

DTC P0050

- HO2S Heater Control Circuit Bank 2 Sensor 1

DTC P0053

- HO2S Heater Resistance Bank 1 Sensor 1

DTC P0054

- HO2S Heater Resistance Bank 1 Sensor 2

DTC P0056

- HO2S Heater Control Circuit Bank 2 Sensor 2

DTC P0059

- HO2S Heater Resistance Bank 2 Sensor 1

DTC P0060

- HO2S Heater Resistance Bank 2 Sensor 2

DTC P0135

- HO2S Heater Performance Bank 1 Sensor 1

DTC P0141

- HO2S Heater Performance Bank 1 Sensor 2

DTC P0155

- HO2S Heater Performance Bank 2 Sensor 1

DTC P0161

- HO2S Heater Performance Bank 2 Sensor 2

Diagnostic Fault Information

Typical Scan Tool Data

2010 Cadillac CTS Sedan AWD V6-3.6L Page 600

2010 Cadillac CTS Sedan AWD V6-3.6L Page 600

* 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 B3715 02

- Front Wiper Relay Drive Circuit Short to Ground

Diagnostic Fault Information

Circuit/System Description

The body control module (BCM) monitors the control circuit of the wiper relay. The voltage level should be low while the wiper relay is

de-energized and near system voltage when the relay is energized. After the BCM receives a low, intermittent, or mist signal from the wiper/washer

switch, it responds by applying battery voltage through the wiper relay control circuit to the coil side of the relay, energizing the WIPER Relay.

Conditions for Running the DTC

The BCM output is actively being requested.

Conditions for Setting the DTC

The BCM detects a short to ground in the wiper relay control circuit.

Action Taken When the DTC Sets

The BCM will not activate the output.

Conditions for Clearing the DTC

* The current DTC will become history when the request for the output is removed or when the condition for setting the fault is corrected.

* The history DTC will clear after 50 consecutive ignition cycles without a fault present.

Reference Information

Schematic Reference

Wiper/Washer Schematics (See: Wiper and Washer Systems/Diagrams/Electrical Diagrams)

Connector End View Reference

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

Description and Operation

Wiper/Washer System Description and Operation (Wiper and Washers) (See: Wiper and Washer Systems/Description and

Operation/Wiper/Washer System Description and Operation (Wiper and Washers))

Electrical Information Reference

2010 Cadillac Truck SRX AWD V6-3.0L Page 1549

2010 Cadillac Truck SRX AWD V6-3.0L Page 1549

* 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 B393B 04

- Air Conditioning Compressor Valve Control Circuit Open

DTC B393B 0B

- Air Conditioning Compressor Valve Control Circuit High Current

Circuit/System Description

The HVAC control module supplies battery voltage to the A/C compressor. When the A/C switch is pressed, the HVAC control module provides a

pulse width modulation (PWM) signal to the A/C compressor in order to command the performance of the A/C compressor. The performance of the

A/C compressor is regulated according to adjusted interior temperature on the basis of characteristic lines. Therefore the HVAC control module

grounds the A/C compressor with the PWM signal.

Conditions for Running the DTC

* Ignition ON.

* The HVAC control module is ON.

Conditions for Setting the DTC

B393B 04

A PWM greater than 10% is send out but no current is read back.

B393B 0B

Measured current is above threshold of 815 mA.

Action Taken When the DTC Sets

B393B 04

The A/C compressor is disabled.

B393B 0B

* The A/C compressor is disabled.

* Output will be switched off for hardware protection.

Conditions for Clearing the DTC

The condition for setting the DTC is no longer present.

Reference Information

Schematic Reference

HVAC Schematics (See: Heating and Air Conditioning/Diagrams/Electrical Diagrams)

Connector End View Reference

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

Description and Operation

Automatic HVAC Description and Operation (See: Heating and Air Conditioning/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)

2010 Cadillac CTS Sedan AWD V6-3.6L Page 146

2010 Cadillac CTS Sedan AWD V6-3.6L Page 146

* 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 B0072 01

- Left Front Seat Belt Sensor Circuit Short to Battery

DTC B0072 02

- Left Front Seat Belt Sensor Circuit Short to Ground

DTC B0072 04

- Left Front Seat Belt Sensor Circuit Open Circuit

DTC B0072 06

- Left Front Seat Belt Sensor Circuit Short To Ground or Open Circuit

DTC B0072 08

- Left Front Seat Belt Sensor Circuit Signal Invalid

DTC B0073 01

- Right Front Seat Belt Sensor Circuit Short to Battery

DTC B0073 02

- Right Front Seat Belt Sensor Circuit Short to Ground

DTC B0073 04

- Right Front Seat Belt Sensor Circuit Open Circuit

DTC B0073 06

- Right Front Seat Belt Sensor Circuit Short To Ground or Open Circuit

DTC B0073 08

- Right Front Seat Belt Sensor Circuit Signal Invalid

Diagnostic Fault Information

Circuit/System Description

The seat belt buckle switch is located within the seat belt buckle assembly and provides an input to the inflatable restraint sensing and diagnostic

module (SDM). The SDM supplies a low reference circuit and a seat belt switch signal circuit to determine a buckled or unbuckled condition.

Conditions for Running the DTC

Ignition voltage is between 9-16 volts.

Conditions for Setting the DTC

B0072 01, B0073 01

The SDM detects the seat switch signal circuit is shorted to voltage for 500 milliseconds.

B0072 02, B0073 02

The SDM detects the seat switch signal circuit is shorted to ground for 500 milliseconds.

B0072 04, B0073 04

The SDM detects the seat switch signal circuit or low reference circuit is open for 500 milliseconds.

2010 Cadillac Truck SRX AWD V6-3.0L Page 785

2010 Cadillac Truck SRX AWD V6-3.0L Page 785

* 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) provide an overview of each diagnostic category.

DTC Descriptors

DTC C056E 41

- Electronic Control Unit Software Not Programmed

DTC C056E 42

- Electronic Control Unit Software Calibration Not Programmed

DTC C056E 5A

- Electronic Control Unit Software Not Plausible

Circuit/System Description

The parking brake control module has an internal motor, apply actuator, release actuator, and temperature sensor. The parking brake control module

also contains the logic for applying and releasing the parking brake when commanded by the park brake control switch. When the parking brake

control module receives a signal from the switch the internal circuit board temperature is checked to verify it is within operating range before the

control module performs the requested operation.

Conditions for Running the DTC

Ignition OFF, ACCESSORY, or RUN mode.

Conditions for Setting the DTC

The parking brake control module has detected an internal software malfunction.

Actions Taken When DTC Sets

C056E 41, C056E 5A

* The electric parking brake is disabled.

* A message and/or a warning indicator may be displayed.

C056E 42

* The electric parking brake functionality is degraded.

* A message and/or a warning indicator may be displayed.

Conditions for Clearing the DTC

* The parking brake control module clears the history DTC when a current DTC is not detected in 40 ignition cycles.

* The condition for the DTC is no longer present.

* The latest software and calibrations are programmed into the parking brake control module.

Reference Information

Schematic Reference

Park Brake System Schematics (See: Brakes and Traction Control/Parking Brake System/Diagrams/Electrical Diagrams)

Connector End View Reference

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

Description and Operation

Electronic Parking Brake Control Module Description (See: Brakes and Traction Control/Parking Brake System/Parking Brake Control

Module/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)

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2871

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2871

* 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 U1862 00

- Battery Energy Control Module Lost Communication with Serial Data Gateway Module

Diagnostic Fault Information

Circuit/System Description

Modules connected to the high and low speed GMLAN serial data circuits monitor for serial data communications during normal vehicle operation.

Operating information and commands are exchanged among the modules. The modules have prerecorded information about what messages are

needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and some periodic messages are used by

the receiver module as an availability indication of the transmitter module. Each message contains the identification number of the transmitter

module.

The enable signal circuit is energized by the body control module (BCM) to activate multiple modules when the BCM determines that

communication is required. Some modules may still become active due to their own ignition voltage source if the enable circuit is not functional.

The serial data gateway (SDG) module translates serial data messages between the high speed GMLAN serial data bus, the low speed GMLAN

serial data bus, and the high speed hybrid GMLAN serial data bus. Messages between the drive motor generator battery control module and the

other hybrid system control modules must pass thru the SDG module. DTC U1862 is set by the drive motor generator battery control module, but is

stored in and reported by the hybrid powertrain control module (HPCM).

Conditions for Running the DTC

* The system voltage is between 9-16 volts.

* The vehicle power mode master requires serial data communication to occur from the drive motor generator battery control module via the

SDG module.

Conditions for Setting the DTC

A supervised periodic message that includes the SDG module availability has not been received by the drive motor generator battery control

module.

Action Taken When the DTC Sets

* The charging system will not operate properly and the vehicle battery will discharge as the vehicle is driven.

* The driver information center (DIC) displays the message Service Hybrid System.

* Multiple DTCs may set depending on the fault location and when the fault occurred.

Conditions for Clearing the DTC

2010 Cadillac Truck SRX AWD V6-3.0L Page 580

2010 Cadillac Truck SRX AWD V6-3.0L Page 580

* 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 B2600 01

- Left Daytime Running Lamps Control Circuit Short to Battery

DTC B2600 02

- Left Daytime Running Lamps Control Circuit Short to Ground

DTC B2600 04

- Left Daytime Running Lamps Control Circuit Open

DTC B2605 01

- Right Daytime Running Lamps Control Circuit Short to Battery

DTC B2605 02

- Right Daytime Running Lamps Control Circuit Short to Ground

DTC B2605 04

- Right Daytime Running Lamps Control Circuit Open

Diagnostic Fault Information

Circuit/System Description

When the headlight switch is in the Auto position and the ambient light sensor detects sunlight, the body control module (BCM) will command the

daytime running lamps to illuminate by providing 12 volts to the daytime running lamp control circuit.

Conditions for Running the DTC

* The engine is running.

* Headlamp switch in AUTO position.

* The ambient light is day.

Conditions for Setting the DTC

B2600 01 or B2605 01

The BCM detects a short to voltage on the daytime running lamp control circuit

B2600 02 or B2605 04

The BCM detects a short to ground on the daytime running lamp control circuit

B2600 04 or B2605 04

The BCM detects an open/high resistance on the daytime running lamp control circuit

Action Taken When the DTC Sets

B2600 01 or B2605 01

The daytime running lamp will be continuously illuminated.

B2600 02, B2600 04, B2605 02 or B2605 04

The daytime running lamp will be inoperative

Conditions for Clearing the DTC

* The DTC will be current for as long as the fault is present.

2010 Cadillac CTS Sedan AWD V6-3.6L Page 1145

2010 Cadillac CTS Sedan AWD V6-3.6L Page 1145

* 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 P0201

- Cylinder 1 Injector Control Circuit

DTC P0202

- Cylinder 2 Injector Control Circuit

DTC P0203

- Cylinder 3 Injector Control Circuit

DTC P0204

- Cylinder 4 Injector Control Circuit

DTC P0205

- Cylinder 5 Injector Control Circuit

DTC P0206

- Cylinder 6 Injector Control Circuit

DTC P0261

- Cylinder 1 Injector Control Circuit Low Voltage

DTC P0262

- Cylinder 1 Injector Control Circuit High Voltage

DTC P0264

- Cylinder 2 Injector Control Circuit Low Voltage

DTC P0265

- Cylinder 2 Injector Control Circuit High Voltage

DTC P0267

- Cylinder 3 Injector Control Circuit Low Voltage

DTC P0268

- Cylinder 3 Injector Control Circuit High Voltage

DTC P0270

- Cylinder 4 Injector Control Circuit Low Voltage

DTC P0271

- Cylinder 4 Injector Control Circuit High Voltage

DTC P0273

- Cylinder 5 Injector Control Circuit Low Voltage

DTC P0274

- Cylinder 5 Injector Control Circuit High Voltage

DTC P0276

- Cylinder 6 Injector Control Circuit Low Voltage

DTC P0277

- Cylinder 6 Injector Control Circuit High Voltage

DTC P2146

- Cylinder 1 Injector High Control Circuit

DTC P2149

- Cylinder 2 Injector High Control Circuit

DTC P2152

- Cylinder 3 Injector High Control Circuit

2010 Cadillac CTS Sedan AWD V6-3.6L Page 802

2010 Cadillac CTS Sedan AWD V6-3.6L Page 802

* 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 P0131

- HO2S Circuit Low Voltage Bank 1 Sensor 1

DTC P0132

- HO2S Circuit High Voltage Bank 1 Sensor 1

DTC P0137

- HO2S Circuit Low Voltage Bank 1 Sensor 2

DTC P0138

- HO2S Circuit High Voltage Bank 1 Sensor 2

DTC P0151

- HO2S Circuit Low Voltage Bank 2 Sensor 1

DTC P0152

- HO2S Circuit High Voltage Bank 2 Sensor 1

DTC P0157

- HO2S Circuit Low Voltage Bank 2 Sensor 2

DTC P0158

- HO2S Circuit High Voltage Bank 2 Sensor 2

DTC P2A00

- HO2S Circuit Closed Loop Performance Bank 1 Sensor 1

DTC P2A03

- HO2S Circuit Closed Loop Performance Bank 2 Sensor 1

Diagnostic Fault Information

Typical Scan Tool Data

Circuit/System Description

The heated oxygen sensors (HO2S) are used for fuel control and catalyst monitoring. Each HO2S compares the oxygen content of the surrounding

air with the oxygen content of the exhaust stream. When the engine is started, the control module operates in an Open Loop mode, ignoring the

HO2S signal voltage while calculating the air-to-fuel ratio. While the engine runs, the HO2S heats up and begins to generate a voltage within a

range of 0-1,275 mV. Once sufficient HO2S voltage fluctuation is observed by the control module, Closed Loop is entered. The control module

uses the HO2S voltage to determine the air-to-fuel ratio. An HO2S voltage that increases toward 1,000 mV indicates a rich fuel mixture. An HO2S

voltage that decreases toward 0 mV indicates a lean fuel mixture.

The heating elements inside each HO2S heat the sensor to bring the sensor up to operating conditions faster. This allows the system to enter Closed

Loop earlier and the control module to calculate the air-to-fuel ratio sooner.

2010 Cadillac CTS Sedan AWD V6-3.6L Page 933

2010 Cadillac CTS Sedan AWD V6-3.6L Page 933

* 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 P0506

- Idle Speed Low

DTC P0507

- Idle Speed High

DTC P050A

- Cold Start Idle Air Control System Performance

Circuit/System Description

The throttle actuator control (TAC) motor is a DC motor that is part of the throttle body assembly. The TAC motor drives the throttle valve. The

engine control module (ECM) controls the TAC motor based on throttle position sensor input. The idle speed is controlled by the ECM based on

various inputs. The ECM commands the TAC motor to open or close the throttle valve in order to maintain the desired idle speed. If the ECM

detects the actual idle speed is not within a predetermined range of the desired idle speed, this DTC sets.

Conditions for Running the DTC

P0506 and P0507

* DTC P0111, P0112, P0113, P0116, P0117, P0118, P0119, P0121, P0122, P0123, P0221, P0222, P0223, P0442, P0443, P0446, P0455,

P0458, P0459, P0496, or P0700 is not set.

* The engine is operating for greater than 4 seconds.

* The engine load is between 32-75 percent, for P0506 or manual transmission only.

* The engine coolant temperature (ECT) is warmer than -11掳C (+13掳F).

* The intake air temperature (IAT) is warmer than -11掳C (+13掳F).

* The vehicle speed is 0 km/h (0 mph) and accelerator pedal position (APP) input is at 0 percent.

* The EVAP intrusive leak test is not enabled.

* The cold start idle speed control is not active.

* The evaporative emission (EVAP) canister purge valve command less than 40 percent.

* A vehicle speed was detected prior to the diagnostic running.

* DTC P0506 and P0507 run continuously once the above conditions are met for greater than 10 seconds.

P050A

* DTC P0111, P0112, P0113, P0116, P0117, P0118, P0119, P0121, P0122, P0123, P0221, P0222, P0223, P0442, P0443, P0446, P0455,

P0458, P0459, P0496, or P0700 is not set.

* The engine load is between 70-90 percent, for under speed or manual transmission only.

* The vehicle speed is 0 km/h (0 mph) and accelerator pedal position (APP) input is at 0 percent.

* The engine coolant temperature (ECT) is colder than 65掳C (149掳F).

* The catalyst cold start heating strategy is active.

* DTC P050A runs once an ignition cycle when the conditions above have been met for 7 seconds.

Conditions for Setting the DTC

P0506

The actual engine speed is less than the desired idle speed by at least 100 RPM for greater than 4 seconds.

P0507

* The actual engine speed is greater than the desired idle speed by at least 200 RPM for greater than 4 seconds.

OR

* The ECM detects 3 fuel cut-offs due to an engine over speed condition while the vehicle speed is zero.

P050A

The actual engine speed is 100 RPM less or 200 RPM greater than the desired idle speed during a cold start, for greater than 4 seconds.

Action Taken When the DTC Sets

DTCs P0506, P0507, and P050A are Type B DTCs.

Conditions for Clearing the DTC

DTCs P0506, P0507, and P050A are Type B DTCs.

2010 Cadillac Truck SRX AWD V6-3.0L Page 1009

2010 Cadillac Truck SRX AWD V6-3.0L Page 1009

* 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 P0016

- Crankshaft Position - Intake Camshaft Position Not Plausible Bank 1

DTC P0017

- Crankshaft Position - Exhaust Camshaft Position Not Plausible Bank 1

DTC P0018

- Crankshaft Position - Intake Camshaft Position Not Plausible Bank 2

DTC P0019

- Crankshaft Position - Exhaust Camshaft Position Not Plausible Bank 2

Circuit/System Description

The engine control module (ECM) uses the crankshaft position (CKP) sensor and the camshaft position (CMP) sensor pulses to monitor the

correlation between the crankshaft and the camshaft position. An improper relative position can be caused by either engine timing or improper

indexing of the camshaft drive chain.

Conditions for Running the DTC

* DTC P0335, P0336, P0338, P0340, P0341, P0345, P0346, P0365, P0366, P0390, P0391, P0641, and P0651 are not set.

* The engine is operating.

* The crankshaft and camshaft position signals are synchronized.

* The camshaft position actuator is in the parked position.

* DTC P0016, P0017, P0018, and P0019 run continuously once the above conditions are met.

Conditions for Setting the DTC

DTC P0016, P0017, P0018, or P0019

The ECM detects that one camshaft is mis-aligned with the crankshaft. The ECM detects one of the following conditions:

* Bank 1 intake camshaft is greater than 9 degrees retarded or 12 degrees advanced in relationship to the crankshaft.

* Bank 1 exhaust camshaft is greater than 10 degrees retarded or 13 degrees advanced in relationship to the crankshaft.

* Bank 2 intake camshaft is greater than 11 degrees retarded or 13 degrees advanced in relationship to the crankshaft.

* Bank 2 exhaust camshaft is greater than 9 degrees retarded or 13 degrees advanced in relationship to the crankshaft.

DTC P0016 and P0017

The ECM detects that both camshafts on bank 1 are mis-aligned with the crankshaft. The ECM detects the following conditions:

* Bank 1 intake camshaft is greater than 6 degrees retarded or 9 degrees advanced in relationship to the crankshaft.

* Bank 1 exhaust camshaft is greater than 6 degrees retarded or 9 degrees advanced in relationship to the crankshaft.

DTC P0018 and P0019

The ECM detects that both camshafts on bank 2 are mis-aligned with the crankshaft. The ECM detects the following conditions:

* Bank 2 intake camshaft is greater than 6 degrees retarded or 9 degrees advanced in relationship to the crankshaft.

* Bank 2 exhaust camshaft is greater than 7 degrees retarded or 9 degrees advanced in relationship to the crankshaft.

DTC P0016, P0017, P0018, and P0019

The ECM detects that all 4 camshafts are mis-aligned with the crankshaft. The ECM detects the following conditions:

* Bank 1 intake camshaft is greater than 6 degrees retarded or 9 degrees advanced in relationship to the crankshaft.

* Bank 1 exhaust camshaft is greater than 6 degrees retarded or 9 degrees advanced in relationship to the crankshaft.

* Bank 2 intake camshaft is greater than 6 degrees retarded or 8 degrees advanced in relationship to the crankshaft.

* Bank 2 exhaust camshaft is greater than 7 degrees retarded or 9 degrees advanced in relationship to the crankshaft.

Action Taken When the DTC Sets

DTCs P0016, P0017, P0018, and P0019 are type B DTCs.

2010 Cadillac CTS Sedan AWD V6-3.0L Page 1809

2010 Cadillac CTS Sedan AWD V6-3.0L Page 1809

* 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 P0010

- Intake Camshaft Position Actuator Solenoid Valve Control Circuit Bank 1

DTC P0013

- Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit Bank 1

DTC P0020

- Intake Camshaft Position Actuator Solenoid Valve Control Circuit Bank 2

DTC P0023

- Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit Bank 2

DTC P2088

- Intake Camshaft Position Actuator Solenoid Valve Control Circuit Low Voltage Bank 1

DTC P2089

- Intake Camshaft Position Actuator Solenoid Valve Control Circuit High Voltage Bank 1

DTC P2090

- Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit Low Voltage Bank 1

DTC P2091

- Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit High Voltage Bank 1

DTC P2092

- Intake Camshaft Position Actuator Solenoid Valve Control Circuit Low Voltage Bank 2

DTC P2093

- Intake Camshaft Position Actuator Solenoid Valve Control Circuit High Voltage Bank 2

DTC P2094

- Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit Low Voltage Bank 2

DTC P2095

- Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit High Voltage 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 Valve signal from the ECM is pulse width modulated (PWM). The ECM controls the

Camshaft Position Actuator Solenoid Valve duty cycle by controlling the amount of solenoid valve ON time. The Camshaft Position Actuator

Solenoid Valve controls the advance or the retard of each camshaft. The Camshaft Position Actuator Solenoid Valve controls the oil flow that

applies the pressure to advance or retard the camshafts.

Ignition voltage is supplied directly to the Camshaft Position Actuator Solenoid Valve. The ECM controls the solenoid valve by grounding the

control circuit with a solid state device called a driver. The driver is equipped with a feedback circuit that is pulled-up to a voltage. The ECM can

determine if the control circuit is open, shorted to ground, or shorted to a voltage by monitoring the feedback voltage.

Conditions for Running the DTC

* The engine speed is greater than 80 RPM.

* The ignition voltage is between 10-18 V.

* The ECM has commanded the Camshaft Position Actuator Solenoid Valve ON and OFF at least once during the ignition cycle.

* DTCs P0010, P0013, P0020, P0023, P2088, P2089, P2090, P2091, P2092, P2093, P2094, and P2095 run continuously once the above

conditions are met for greater than 1 second.

Conditions for Setting the DTC

P0010, P0013, P0020, P0023

The ECM detects an open in the Camshaft Position Actuator Solenoid Valve circuits for greater than 1 s when the solenoid valve is commanded

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1782

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1782

* 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 P0128

- Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature

Diagnostic Fault Information

Typical Scan Tool Data

Circuit/System Description

The engine coolant temperature (ECT) sensor is a variable resistor that measures the temperature of the engine coolant. The engine control module

(ECM) supplies 5 V to the ECT sensor signal circuit and supplies a ground to the low reference circuit.

The purpose of this diagnostic is to analyze the performance of the thermostat by using the ECT sensor to determine if the engine coolant will

increase at the correct rate, and also to meet the calibrated target temperatures under various operating conditions.

The ECM uses the start-up ECT and the start-up intake air temperature (IAT) to begin the diagnostic calculation. The air flow into the engine is

accumulated, and vehicle speed, distance, and engine run time are also factored in to determine if the ECT does increase normally and reach the

calibrated target temperatures.

Conditions for Running the DTC

* DTCs P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0171, P0172, P0174, P0175, P0502, P0503 are

not set.

* The start-up IAT is warmer than -7掳C (+19掳F).

* The start-up ECT is colder than 70掳C (158掳F), when the IAT is above 10掳C (50掳F).

OR

* The start-up ECT is colder than 50掳C (122掳F), when the IAT is below 10掳C (50掳F).

* The engine run time is between 90 s and 22 min.

* The vehicle has traveled greater than 2.4 kilometers (1.5 miles) at greater than 8 km/h (5 mph).

* The accumulated airflow is between 20-75 g/s, with the minimum average airflow greater than 10 g/s.

* The fuel ethanol percentage is less than 85 %.

* This DTC runs once per ignition cycle when the above conditions are met.

Conditions for Setting the DTC

The ECM detects that the minimum ECT of 75掳C (167掳F) has not been met, when the IAT is greater than 10掳C (50掳F).

OR

The ECM detects that the minimum ECT of 55掳C (131掳F) has not been met, when the IAT is less than 10掳C (50掳F).

Action Taken When the DTC Sets

DTC P0128 is a Type B DTC.

Conditions for Clearing the MIL/DTC

DTC P0128 is a Type B DTC.

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1658

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1658

* 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 P0016

- Crankshaft Position (CKP) Camshaft Position (CMP) Correlation

Circuit/System Description

The engine control module (ECM) uses the crankshaft position (CKP) sensor and the camshaft position (CMP) sensor pulses to monitor the

correlation between the crankshaft and the camshaft position. The crankshaft reluctor wheel consists of a 60-tooth pattern with 2 teeth missing for

the reference gap. Each tooth is evenly spaced 6 degrees apart, except for the reference gap. The camshaft reluctor wheel has 4 teeth, 2 narrow, and

2 wide. The 4 trailing edges of each tooth are evenly spaced at 90 degrees apart around the circumference of the camshaft sprocket. With the engine

running, and the CMP actuator in the parked position, the ECM expects the camshaft signal pulses to occur 36 crankshaft degrees before top dead

center (BTDC) for cylinder number 1, and every 90 degrees thereafter.

Conditions for Running the DTC

* DTC P0335, P0336, P0340, P0341, P0641, or P0651 is not set.

* The engine is running.

* The engine speed is less than 2,000 RPM.

* DTC P0016 runs continuously when the above conditions are met.

Conditions for Setting the DTC

The ECM detects that the CMP sensor pulses occur more than 11 crank degrees before, or 11 crank degrees after, nominal position for 24 out of 30

engine cycles.

Action Taken When the DTC Sets

DTC P0016 is a Type B DTC.

Conditions for Clearing the DTC

DTC P0016 is a Type B DTC.

Reference Information

Schematic Reference

Engine Controls Schematics (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)

Connector End View Reference

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

Description and Operation

Electronic Ignition System Description (See: Powertrain Management/Computers and Control Systems/Description and Operation/Electronic

Ignition System Description)

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)

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 Verification