B1295

DTC B1295

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.

* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC B1295 07

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Steering Wheel Controls Group 2 Signal Circuit

Diagnostic Fault Information






Circuit/System Description

The body control module (BCM) monitors the rear seat audio control signal circuit voltage. If the voltage level is too high, damage may result in the system. When a high voltage condition is detected, the BCM will ignore the switch command.

Conditions for Running the DTC

* Battery voltage is between 9-16 volts

* The ignition is ON.

Conditions for Setting the DTC

The BCM detects a short to voltage in the rear seat audio control switch signal circuit.

Action Taken When the DTC Sets

The BCM will ignore switch inputs.

Conditions for Clearing the DTC

* The condition responsible for setting the DTC no longer exists.

* A history DTC will clear once 100 consecutive malfunction free ignition cycles have occurred.

Reference Information

Schematic Reference

Steering Wheel Secondary/Configurable Control Schematics Steering Wheel Secondary/Configurable Control Schematics

Connector End View Reference

Component Connector End Views A/C Compressor Clutch

Description and Operation

Steering Wheel Controls Description and Operation Steering Wheel Controls

Electrical Information Reference

* Circuit Testing Circuit Testing

* Connector Repairs Connector Repairs

* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections

* Wiring Repairs Wiring Repairs

Scan Tool Reference

Control Module References Programming and Relearning for scan tool information

Circuit/System Verification

Ignition ON, observe the scan tool SWC Bank 2 status while pressing and releasing the switches. The reading should be SW1-SW8 identifying the switch pressed, and Idle when released.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the rear seat audio control switch.

2. Ignition ON, test for B+ between the voltage reference circuit terminal 4 and ground.

• If less than the specified value, test the voltage reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.

3. Test for B+ between the voltage reference circuit terminal 4 and the signal circuit terminal 1.

• If less than the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.

4. Ignition OFF, disconnect the X1 harness connector at the BCM.

5. Test for infinite resistance between the signal circuit terminal 1 and ground.

• If less than the specified value, test the signal circuit for a short to ground.

6. If all circuits test normal, test or replace the rear seat audio control switch.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

* Steering Wheel Control Switch Assembly Replacement (Traverse) Service and RepairSteering Wheel Control Switch Assembly Replacement (Acadia/Enclave) Service and Repair

* Control Module References Programming and Relearning for BCM replacement, setup, and programming