2010 Cadillac CTS Sedan AWD V6-3.6L Page 492
Testing/Testing for Intermittent Conditions and Poor Connections)
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit Testing/Circuit Testing)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Wiring Repairs/Wiring Repairs)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Connector Repairs/Connector Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Ignition ON, observe the scan tool Liftgate Handle Switch parameter while pressing and releasing the liftgate handle switch. The parameter should
change between Active and Inactive.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connectors at the liftgate handle switch.
2. Ignition ON, verify the scan tool Liftgate Handle Switch parameter is Inactive.
瀚慖f not the specified value, test the signal circuit terminal 1 for a short to ground. If the circuit tests normal, replace the LGM.
3. Connect a 3A fused jumper wire between the signal circuit terminal 1 and ground, verify the scan tool Liftgate Handle Switch is Active.
瀚慖f not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the
LGM.
4. If all circuits test normal, test or replace the liftgate handle switch.
Component Testing
1. Ignition OFF, disconnect the harness connector at the liftgate handle switch.
2. Test for infinite resistance between the signal terminal 1 and the low reference terminal 2 with the switch in the open position.
瀚慖f not the specified value, replace the liftgate handle switch.
3. Test for less than 2.0 ohms between the signal terminal 1 and the low reference terminal 2 with the switch in the closed position.
瀚慖f greater than the specified range, replace the liftgate handle switch.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.
* Liftgate Outside Handle Replacement (See: Body and Frame/Doors, Hood and Trunk/Trunk / Liftgate/Trunk / Liftgate Handle/Service and
Repair)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for LGM replacement, setup and programming
B2495
DTC B2495
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 B2495 01
- Liftgate Latch Control Circuit Short to Battery
DTC B2495 02
- Liftgate Latch Control Circuit Short to Ground
