B3170

DTC B3170, B3175, or B3280

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview)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




Circuit/System Description

The power window motor front passenger up and down control and power window switch right front express signal circuits provide inputs to the passenger door module (PDM) when the passenger window switch is activated to the UP, DOWN, EXPRESS UP or EXPRESS DOWN positions. These inputs allow the PDM to detect a window UP, DOWN, EXPRESS UP or EXPRESS DOWN request. The PDM provides power to the passenger window switch. When the window switch is activated to the UP, DOWN, EXPRESS UP or EXPRESS DOWN position, ground is supplied by G202. When the PDM detects low voltage on one of the circuits, it will command the window in the UP, DOWN, EXPRESS UP or EXPRESS DOWN direction. The PDM monitors the circuits to determine how long the ground has been applied. If the PDM detects that a ground is applied for greater than 20 seconds, a DTC is set.


Conditions for Running the DTC

Battery voltage must be between 9-16 volts.


Conditions for Setting the DTC

* The PDM detects a short to ground in a window switch circuit.
* Condition must be present for greater than 20 seconds.



Actions Taken When the DTC Sets

* When DTC B3170 is present, inputs from the passenger window UP switch are ignored.
* When DTC B3175 is present, inputs from the passenger window DOWN switch are ignored.
* When DTC B3280 is present, inputs from the passenger window EXPRESS switch are ignored.



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

* There is an intermittent short to ground in the window switch circuit.
* The window switch is shorted to ground internally or is sticking.
* The window switch was pressed for longer than 20 seconds.



Reference Information
Schematic Reference

Moveable Window Schematics ([1][2]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 (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning)


Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the passenger window switch.
2. Ignition ON, verify the scan tool front passenger window switch parameter is idle.

• If not the specified value, test the appropriate power window switch signal circuit for a short to ground or voltage. If the circuits tests normal, replace the PDM.

3. If all circuits test normal, test or replace the front 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 DDM or PDM replacement, setup, and programming