Vehicle Access

DTC B1023

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 B1023 00
- Integral Switch Performance

Circuit/System Description

The driver door lock/window switch and passenger door lock/window switch each contain switches that control power door lock and window functions. The driver door lock/window switch also contains the control switch for the power outside rear view mirrors. These switches are integrated within the door control modules and are not serviceable as separate components. The driver door lock/window switch and passenger door lock/window switch monitor these switch inputs for internal faults and set DTC B1023 00 if any are detected.

Conditions for Running the DTC

Ignition ON

Conditions for Setting the DTC

The driver door lock/window switch or passenger door lock/window switch detects multiple or simultaneous inputs from a window or door lock switch.

Action Taken When the DTC Sets

The driver door lock/window switch or passenger door lock/window switch ignores inputs from the malfunctioning switch.

Conditions for Clearing the DTC

* The DTC will be current for as long as the fault is present.

* When the fault is no longer present, the DTC will be a history DTC.

* A history DTC will clear after 50 ignition cycles.

Reference Information

Schematic Reference

Door Lock/Indicator Schematics (AXE) Door Lock/Indicator Schematics (AXE)Door Lock/Indicator Schematics (Except AXE) Door Lock/Indicator Schematics (Except AXE)

Connector End View Reference

Component Connector End Views A/C Compressor Clutch

Description and Operation

Power Door Locks Description and Operation (AXC/AXE) Power Door Locks (AXC/AXE)Power Door Locks Description and Operation (AXA) Power Door Locks (AXA)

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

Clear all DTCs and operate the integrated switches at each door lock/window switch within the Conditions for Running the DTC. The DTC should not set.

If the DTC sets, replace the appropriate door lock/window switch.

Repair Instructions

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

* Door Lock and Side Window Switch Replacement - Driver Side (with RPO AXE or AXC) Door Lock and Side Window Switch Replacement - Driver Side (with RPO AXE or AXC)Door Lock and Side Window Switch Replacement - Driver Side (Traverse with A45) Door Lock and Side Window Switch Replacement - Driver Side (Traverse with A45)

* Door Lock and Side Window Switch Replacement - Passenger Side (with RPO AXE or AXC) Door Lock and Side Window Switch Replacement - Passenger Side (with RPO AXE or AXC)Door Lock and Side Window Switch Replacement - Passenger Side (Enclave with RPO AXE or AXC) Door Lock and Side Window Switch Replacement - Passenger Side (Enclave with RPO AXE or AXC)

* Control Module References Programming and Relearning for the driver door lock/window switch or passenger door lock/window switch replacement, setup, and programming