DTC B3170, B3175, or B3280. Chevrolet Corvette 2007

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2007 🢒 Corvette 🢒 Body Systems 🢒 Fixed and Moveable Windows 🢒 DTC B3170, B3175, or B3280

Diagnostic Instructions

•	Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	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

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. For more detailed information concerning power window operation refer to Power Windows Description and Operation .

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

Connector End View Reference

Window Systems Connector End Views

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Scan Tool Reference

•	Scan Tool Data Definitions

•	Scan Tool Data List

•	Scan Tool Output Controls

Circuit/System Testing

Ignition OFF, disconnect the harness connector at the passenger window switch.
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.

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

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

•	Front Side Door Window Switch Replacement - Right Side

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