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 CircuitDTC B3175: Right Front Window Down Switch Circuit
DTC B3280: Right Front Window Express Up or Down Circuit
Diagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Driver Window Switch B+ | 1 | 1 | -- | -- |
Driver Door Module B+ | 1 | 1 | -- | -- |
Passenger Window Switch Up Signal | B3170 | 2 | 2 | -- |
Passenger Window Switch Down Signal | B3175 | 2 | 2 | -- |
Passenger Window Switch Express Down Signal | B3280 | 2 | 2 | -- |
Driver Door Module Ground | -- | B1420 | 1 | -- |
Driver Window Switch Ground | -- | 1 | 1 | -- |
Passenger Door Module Ground | -- | B1420 | 2 | -- |
Passenger Window Switch Ground | -- | 2 | 2 | -- |
1. Driver Window Malfunction 2. Passenger Window Malfunction | ||||
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
Connector End View Reference
Description and Operation
Power Windows Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References 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
- Ignition OFF, disconnect the harness connector at the passenger window switch.
- Ignition ON, verify the scan tool Front Psgr. Window Switch parameter is Idle.
- If all circuits test normal, test or replace the passenger window switch.
| ⇒ | 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 |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for PDM replacement, setup, and programming |
