Monday, February 8, 2021

2010 Cadillac Truck SRX AWD V6-3.0L Page 414

2010 Cadillac Truck SRX AWD V6-3.0L Page 414



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. Verify that DTC B1405 is not present.



瀚慖f DTC is present, refer to DTC B1405 (See: B Code Charts/B1405/Object Detection).



2. Verify that DTC B0958-B0961 symptom byte01, 06 or 08 is not present.



瀚慖f DTC is present, refer to Circuit/System Testing.



3. Verify that DTC B0958 21, B0959 21, B0960 21 or B0961 21 is not present.



瀚慖f DTC is present, check the appropriate sensor for contamination with mud, ice or snow. Remove contamination if present and drive



vehicle above 40 km/h (25 MPH). If after driving vehicle above 40 km/h (25 MPH) the DTC is still present, refer to Diagnostic Aids.



4. Verify that DTC B0958 3A, B0959 3A, B0960 3A or B0961 3A is not present.



瀚慖f DTC is present, replace the appropriate sensor with a sensor of correct sensor type.



5. Ignition ON, transmission in REVERSE, verify the scan tool Parking Assist System Status parameter displays Enabled.



Circuit/System Testing



1. Ignition OFF for 30 s, disconnect the harness connector at the appropriate rear object sensor.



2. Test for less than 5 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 K86



parking assist control module.



3. Ignition ON, transmission in REVERSE, test for 7.5-9.0 V between the 8 V reference circuit terminal 1 and ground.



瀚慖f less than the specified range, test the 8 V reference circuit for an open/high resistance. If the circuit tests normal, replace the K86



parking assist control module.



4. Ignition OFF, remove the malfunctioning object sensor and swap locations with another properly functioning rear object sensor. Connect the



harness connector at both sensors.



5. Ignition ON, verify the DTC is set for the new location in which the malfunctioning sensor is installed.



瀚慖f the DTC does not set for the new location, test the signal circuit terminal 3 for a short to voltage, short to ground, or an open/high



resistance. If the circuit tests normal, replace the K86 parking assist control module.



6. If the DTC sets for the new location in which the malfunctioning sensor is installed, replace the appropriate rear object sensor.



Repair Instructions



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



^ Rear Object Sensor Replacement (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Parking



Assist Distance Sensor/Service and Repair/Rear Object Sensor Replacement)



^ Control Module References (See: Testing and Inspection/Programming and Relearning) for parking assist control module replacement,



programming and setup



B0967



DTC B0967 or B0968



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.

2010 Cadillac Truck SRX AWD V6-3.0L Page 811

2010 Cadillac Truck SRX AWD V6-3.0L Page 811



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 C0298 00



- Park Brake Unlatch Switch Circuit Malfunction



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 detects the apply or release button was activated for more than 90 seconds.



Action Taken When the DTC Sets



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 park brake control switch button is released using the scan tool.



Diagnostic Aids



Check if the park brake control switch is stuck in the apply or release position which may cause the DTC to set.



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)



Scan Tool Reference



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



Circuit/System Verification



1. Verify DTC C0293 is not set.



瀚慖f DTC C0293 is set, refer to DTC C0293 (See: C Code Charts/C0293).

2010 Cadillac Truck SRX AWD V6-3.0L Page 1486

2010 Cadillac Truck SRX AWD V6-3.0L Page 1486



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 air pump relay ON and OFF at least once during the ignition cycle.



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



Conditions for Setting the DTC



P0418



The ECM detects the secondary air injection pump relay control circuit is open.



P2257



The ECM detects the secondary air injection pump relay control circuit is shorted to ground.



P2258



The ECM detects the secondary air injection pump relay control circuit is shorted to voltage.



Action Taken When the DTC Sets



DTC P0418, P2257, and P2258 are Type B DTCs.



Conditions for Clearing the DTC



DTC P0418, P2257, and P2258 are Type B DTCs.



Reference Information



Schematic Reference



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



(LF1) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)



Connector End View Reference



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



Description and Operation



Secondary Air Injection System Description (See: Powertrain Management/Emission Control Systems/Air Injection/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)



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



Note: Do not run SAIR pump for more than 1-2 minutes at a time. Running for an extended period of time without allowing pump to cool



may cause damage to the pump.



1. Ignition ON, command the secondary air injection pump relay ON and OFF with a scan tool. You should hear an audible click or the



secondary air injection pump should turn ON and OFF.



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.

2010 Cadillac Truck SRX AWD V6-3.0L Page 47

2010 Cadillac Truck SRX AWD V6-3.0L Page 47



U Code List



Diagnostic Trouble Code (DTC) List - Vehicle



This master DTC list includes all applicable DTCs in alphanumeric order with descriptors.

2010 Cadillac Truck SRX AWD V6-3.0L Page 289

2010 Cadillac Truck SRX AWD V6-3.0L Page 289



Action Taken When the DTC Sets



The BCM will ignore the input from the lockout switch and the child lockout feature will be inoperative.



Conditions for Clearing the DTC



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



* When the fault is no longer present, the DTC will be a history DTC.



* A history DTC will clear after 50 ignition cycles.



Reference Information



Schematic Reference



Door Lock/Indicator Schematics (See: Body and Frame/Locks/Diagrams/Electrical Diagrams/Door Lock/Indicator Schematics)



Connector End View Reference



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



Description and Operation



Power Door Locks Description and Operation (See: Body and Frame/Locks/Power Locks/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



Ignition ON, doors locked, command the child lockout function by pressing the child lockout switch, the interior rear door handles should become



inoperative and the lockout indicator should illuminate.



Circuit/System Testing



1. Ignition OFF, disconnect the X1 harness connector at the A20 radio/HVAC control.



2. Ignition ON, test for greater than 10 V between the signal circuit terminal 5 and ground.



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 BCM.



3. If all circuits test normal, test or replace the A20 radio/HVAC control.



Component Testing



Child Lockout Switch Test



1. Ignition OFF, disconnect the X1 harness connector at the A20 radio/HVAC control.



2. Test for infinite resistance between the signal terminal 5 and the ground terminal 17 with the switch in the open position.



瀚慖f less than the specified value, replace the A20 radio/HVAC control.



3. Test for less than 2 ohm between the signal terminal 5 and the ground terminal 17 while holding the switch in the closed position.



瀚慖f greater than the specified range, replace the A20 radio/HVAC control.



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 BCM and the radio/HVAC control replacement, setup

Sunday, February 7, 2021

2010 Cadillac Truck SRX AWD V6-3.0L Page 1317

2010 Cadillac Truck SRX AWD V6-3.0L Page 1317



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 P0231



- Fuel Pump Control Circuit Low Voltage



DTC P0232



- Fuel Pump Control Circuit High Voltage



DTC P023F



- Fuel Pump Control Circuit



Diagnostic Fault Information



Circuit/System Description



The engine control module (ECM) supplies voltage to the fuel pump control module when the ECM detects that the ignition is on. The voltage from



the ECM to the fuel pump control module remains active for 2 seconds, unless the engine is in crank or run. While this voltage is being received,



the fuel pump control module supplies a varying voltage to the fuel tank pump module in order to maintain the desired fuel rail pressure.



Conditions for Running the DTC



P0231, P023F



The ignition voltage is between 9-18 V.



P0232



The control enable voltage signal supplied for the ECM to fuel pump control module is inactive for 4 seconds after engine has been shut off.



Conditions for Setting the DTC



The fuel pump control module detects a fault on the fuel pump voltage circuit that is less than 11 V or greater than 18 V.



Action Taken When the DTC Sets



DTCs P0231, P0232, and P023F are Type A DTCs.



Conditions for Clearing the DTC



DTCs P0231, P0232, and P023F are Type A DTCs.



Diagnostic Aids



Using the Failure Records data may help locate an intermittent condition. If you cannot duplicate the DTC, the information in the Failure Records



can help determine how many miles since the DTC set. The Fail Counter and Pass Counter can help determine how many ignition cycles that the



diagnostic test reported a pass and/or a fail.



Reference Information



Schematic Reference



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



(LF1) (See: Diagrams/Electrical Diagrams/Powertrain Management/System Diagram)



Connector End View Reference



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



Description and Operation



Fuel System Description (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Description and Operation/Fuel System



Description)Fuel System Description (LAU or LY7) (See: Powertrain Management/Fuel Delivery and Air Induction/Description and



Operation/Fuel System Description)



Electrical Information Reference

2010 Cadillac Truck SRX AWD V6-3.0L Page 333

2010 Cadillac Truck SRX AWD V6-3.0L Page 333



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 B310D 00



- Keyless Entry Transmitter 6 Battery



DTC B310E 00



- Keyless Entry Transmitter 7 Battery



DTC B310F 00



- Keyless Entry Transmitter 8 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.



Conditions for Clearing the DTC



The DTC is cleared when a normal transmitter voltage signal is received from the transmitter that set the DTC.



Reference Information



Schematic Reference



Remote Function Schematics (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Keyless Entry/Keyless Entry



Transmitter/Diagrams/Electrical Diagrams)



Connector End View Reference



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



Description and Operation



Keyless Entry System Description and Operation (without ATH) (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Keyless



Entry/Description and Operation/Keyless Entry System (without ATH))Keyless Entry System Description and Operation (with ATH) (See:



Accessories and Optional Equipment/Antitheft and Alarm Systems/Keyless Entry/Description and Operation/Keyless Entry System (with ATH))



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



Verify none of the following DTCs are set: