B3525

DTC B3525

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 B3525 02
- Window Lockout Switch Circuit Short to Ground

Circuit Description

The window lockout switch is contained within the driver window switch. The driver window switch contains a microprocessor which takes the signal generated by the window lockout switch and assigns a digital message to the switch signal. The driver window switch sends this message via the serial data circuit to the passenger front door module (PDM), right rear door module (RRDM), and left rear door module (LRDM). When the window lockout function is activated, the passenger door modules will not allow their associated window to operate from the associated passenger door window switch.

Conditions for Running the DTC

The DDM and the driver window switch must be powered.

Conditions for Setting the DTC

The driver window switch detects that the window lockout switch is closed for greater than 30 seconds.

Action Taken When the DTC Sets

The driver window switch deactivates and ignores inputs from the failed switch contacts and stops sending messages for this switch to the DDM. The driver window switch will continue to respond to inputs from other non-failed switch contacts.

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

Moveable Window Schematics (Electrical Diagrams)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Power Windows Description and Operation (Power Windows)
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 Testing

Ignition ON, clear all DTCs and operate the window lockout switch within the Conditions for Running the DTC.

If DTC B3525 resets as current, replace the driver window switch.

Repair Instructions

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

Control Module References (Programming and Relearning) for driver window switch replacement, setup, and programming