2010 Cadillac Truck SRX AWD V6-3.0L Page 563

2010 Cadillac Truck SRX AWD V6-3.0L Page 563

Diagnostic Aids

* If the liftgate will not release from the closed position, refer to Opening the Liftgate Without Electrical Power (See: Body and Frame/Doors,

Hood and Trunk/Trunk / Liftgate/Service and Repair/Procedures) for the appropriate procedure

* Whenever the liftgate control module loses power or is disconnected, the ignition must be cycled OFF then ON in order to reactivate the

liftgate control module.

* DTC B2495 01 may be set due to minor fluctuations in the system voltage. The power liftgate will continue to function normally and only

requires that the DTC be cleared when encountered.

Reference Information

Schematic Reference

Liftgate Schematics (See: Body and Frame/Locks/Diagrams/Electrical Diagrams/Liftgate Schematics)

Connector End View Reference

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

Description and Operation

Liftgate Description and Operation (See: Body and Frame/Doors, Hood and Trunk/Trunk / Liftgate/Description and Operation/Liftgate)

Electrical Information Reference

* 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)

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

Testing/Circuit Testing)

* 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

Procedures/Connector Repairs/Connector Repairs)

Scan Tool Reference

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

Circuit/System Verification

1. Ignition OFF, transmission in Park, using either the power door lock switches or the remote keyless entry transmitter, LOCK all doors and

then UNLOCK all doors. This will set the liftgate module door lock status to unlock

2. Manually open the liftgate, the A23C liftgate latch assembly should release allowing the liftgate to be pulled open.

Circuit/System Testing

1. Ignition OFF, disconnect the X2 harness connector at the K39 liftgate control module.

2. Test for less than 15 ohm between the control circuit terminal 1 and the control circuit terminal 2.

瀚慖f greater than the specified range, test either control circuit for a short to voltage or an open/high resistance. If circuits test normal, test or

replace the M31 liftgate latch assembly.

3. Verify that a test lamp does not illuminate between the control circuit terminal 1 and B+.

瀚慖f the test lamp illuminates, test the control circuit for a short to ground. If circuit tests normal, test or replace the A23C liftgate latch

assembly.

4. Verify that a test lamp does not illuminate between the control circuit terminal 2 and B+.

瀚慖f the test lamp illuminates, test the control circuit for a short to ground. If circuit tests normal, test or replace the A23C liftgate latch

assembly.

5. If all circuits test normal, replace the K39 liftgate control module

Repair Instructions

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

* Liftgate Latch Replacement (See: Body and Frame/Doors, Hood and Trunk/Trunk / Liftgate/Trunk / Liftgate Latch/Service and Repair)

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