Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
DTC Descriptor
DTC B1023 00: Integral Switch PerformanceCircuit/System Description
The driver door module (DDM) and front passenger door module (PDM) each contain switches that control power door lock and window functions. The DDM 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 DDM and PDM monitor these switch inputs for internal faults and set DTC B1023 00 if any are detected.
Conditions for Running the DTC
The system voltage is 9-18 volts.
Conditions for Setting the DTC
The DDM or PDM detects multiple or simultaneous inputs from a window or door lock switch.
Action Taken When the DTC Sets
The DDM or PDM 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
Connector End View Reference
Description and Operation
Power Door Locks Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Clear all DTCs and operate the integrated switches at each door control module within the Conditions for Running the DTC. The DTC should not set.
| ⇒ | If the DTC sets, replace the appropriate door module. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for DDM and PDM replacement, setup, and programming |
