DTC B176A

Diagnostic Instructions Perform the Diagnostic System Check prior to using this diagnostic procedure: Diagnostic System Check - Vehicle Review the description of Strategy Based Diagnosis: Strategy Based Diagnosis An overview of each diagnostic category can be found here: Diagnostic Procedure Instructions DTC Descriptor Rear Closure Interior Release Signal Symptom Byte Information: Symptom Byte List Circuit/System Description For an overview of the component/system, refer to: Liftgate Description and Operation

Component	Description
A103 Roof Console	Contains control switches for the power liftgate system.

Conditions for Running the DTC A103 Roof Console » Activated Conditions for Setting the DTC The internal fault detection is handled inside the control module. No external circuit diagnosis is involved. Actions Taken When the DTC Sets Liftgate Release Switch @ A103 Roof Console = Disabled Conditions for Clearing the DTC If set as a current DTC » Replace the component: A103 Roof Console Reference Information Schematic Reference OnStar/Telematics Schematics Connector End View Reference Master Electrical Component List Electrical Information Reference Circuit Testing Testing for Intermittent Conditions and Poor Connections Wiring Repairs Scan Tool Reference Control Module References Circuit/System Verification

1. Ignition » On / Vehicle » In Service Mode
2. Verify DTC B176A 23 is not set. ⇒ If the DTC is set Replace the component: A103 Roof Console ⇓ If the DTC is not set
3. All OK. Repair Instructions Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification Roof Console Replacement For control module replacement, programming, and setup refer to: Control Module References