B1023

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
^ Integral Switch Performance

Circuit/System Description

The driver and passenger door modules (DDM PDM) are integrated control module switch assemblies.

Conditions for Running the DTC

The battery voltage must be between 9-16 volts.

Conditions for Setting the DTC

The DDM or PDM receives simultaneous active signals from both sides of an integrated switch.

Action Taken When the DTC Sets

The DDM or PDM ignores inputs from the malfunctioning switch.

Conditions for Clearing the DTC

* This DTC will clear on current status after the condition for setting the fault is corrected.
* A history DTC will clear after 50 consecutive ignition cycles without a fault present.

Reference Information
Schematic Reference

* Door Lock/Indicator Schematics (Door Lock/Indicator Schematics)
* Moveable Window Schematics ([1][2]Electrical Diagrams)

Connector End View Reference

Component Connector End Views (Component Connector End Views)
Description and Operation

* Power Door Locks Description and Operation (Description and Operation)
* Power Windows Description and Operation (Power Windows Description and Operation)

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 (Control Module References) for scan tool information

Circuit/System Verification

1. Ignition ON, verify the door lock and side window switches of the affected door module are Inactive.

• If any of the integrated switch inputs are displayed as Active while in an inactive state, replace the door module.

2. Clear the DTCs.
3. Activate all of the integrated switch functions.

• If the DTC resets, replace the affected door module.

Repair Instructions

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

Control Module References (Control Module References) for door lock and side window switch replacement, programming, and setup