B3280

DTC B3170, B3175, or B3280

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 Descriptors
DTC B3170
- Right Front Window Up Switch Circuit

DTC B3175
- Right Front Window Down Switch Circuit

DTC B3280
- Right Front Window Express Up or Down Circuit

Diagnostic Fault Information





Circuit/System Description

The vehicle is equipped with power windows controlled by door modules. The passenger door window can be operated either the driver master control built into the driver window switch or from the power window switch.

When the passenger door module (PDM) receives a window switch request from either the driver window switch or the passenger window switch, the PDM will examine the request and check for messages from other vehicle control modules prohibiting the window movement. If no prohibitive messages have been received, the door module will apply power and ground to its associated window motor to move the window as requested.

Conditions for Running the DTC

Battery voltage must be between 9-16 volts.

Conditions for Setting the DTC

B3170

The PDM detects a short to ground in the passenger window UP signal circuit.

B3175

The PDM detects a short to ground in the passenger window DOWN signal circuit.

B3280

The PDM detects a short to ground in the passenger window EXPRESS DOWN signal circuit.

Action Taken When the DTC Sets

The PDM will ignore the affected input from the passenger window 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

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 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 (Programming and Relearning) for scan tool information

Circuit/System Verification

Ignition ON, command the passenger window UP and DOWN using the passenger door window switch. The passenger window should perform the UP and DOWN functions.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the passenger window switch.
2. Ignition ON, verify the scan tool Front Psgr. Window Switch parameter is Idle.

• If not the specified value, test the appropriate signal circuit terminal listed below for a short to ground. If the circuit tests normal, replace the PDM.

* Signal circuit terminal 7
* Signal circuit terminal 8
* Signal circuit terminal 16

3. If all circuits test normal, test or replace the passenger window switch.

Repair Instructions

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

* Front Side Door Window Switch Replacement - Right Side (Front Side Door Window Switch Replacement - Right Side)
* Control Module References (Programming and Relearning) for PDM replacement, setup, and programming