2010 Cadillac CTS Sedan AWD V6-3.6L Page 492

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