B3525

DTC B3525

Circuit Description

The window lockout switch is contained within the driver door switch assembly (DDSA). The DDSA contains a microprocessor which takes the signal generated by the window lockout switch and assigns a digital message to the switch signal. The DDSA sends this message via the GMLAN 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. For more detailed information concerning power window lockout operation refer to Power Windows Description and Operation.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC B3525 Window Lockout Switch Circuit





Conditions for Running the DTC

The DDM and the DDSA must be powered.

Conditions for Setting the DTC

The DDSA detects that the window lockout switch is closed for more than 30 continuous seconds.

Action Taken When the DTC Sets

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

Conditions for Clearing the DTC

* The condition responsible for setting the DTC no longer exists.
* You issue a scan tool CLEAR DTCs command.
* A history DTC will clear once 40 consecutive malfunction free ignition cycles have occurred.

Diagnostic Aids

Step 1 - Step 6:

Thoroughly inspect the wiring and connectors. An incomplete inspection of the wiring and connectors may result in misdiagnosis causing part replacement with the reappearance of the malfunction. If an intermittent malfunction exists, refer to Testing for Intermittent Conditions and Poor Connections. Component Tests and General Diagnostics