B3542

DTC B3542

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 B3542

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Left Front/Driver Window Obstruction Sensor Control Circuit

Circuit/System Description

The driver door module (DDM) and passenger door module (PDM) check for hall sensor pulses of their respective window motors at least once every 50 milliseconds. When the DDM or PDM detects no hall sensor pulses in the window motor, a DTC is set.

Conditions for Running the DTC

Battery voltage must be between 9-16 volts.

Conditions for Setting the DTC

* The DDM or PDM detects no hall sensor pulses from the power window motor.

* A RAM memory check error has been detected.

* A window lifter motor error has been detected.

* Under/overrun of position counter detected.

Action Taken When the DTC Sets

No window express modes are possible.

Conditions for Clearing the DTC

* The condition responsible for setting the DTC no longer exists.

* You issue a scan tool CLEAR DTCs command.

Diagnostic Aids

The following conditions may cause an intermittent malfunction:

* An intermittent sticking or binding window causing excessive current draw resulting in a critical temperature fault.

* A window motor is shorted internally.

Reference Information

Schematic Reference

Moveable Window Schematics Electrical Diagrams

Connector End View Reference

Component Connector End Views 5 Bow Lowered Switch (CM7)

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 Control Module References for scan tool information

Circuit/System Testing

Ignition ON, install a scan tool, clear all DTCs and operate the windows within the Conditions for Running the DTC.

If DTC B3542 resets as current, replace the appropriate door control module.

Repair Instructions

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

Control Module References Control Module References for DDM or PDM replacement, setup, and programming