Circuit 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. For more detailed information concerning power window operation refer to Power Windows Description and Operation .
DTC Descriptors
This diagnostic procedure supports the following DTCs:
| • | 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 |
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. |
Action 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
The following conditions may cause an intermittent malfunction:
| • | 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. |
| • | Thoroughly inspect the wiring and connectors. An incomplete inspection of the wiring and connectors may result in misdiagnosis causing part replacement with the reappearance of the malfunction. If an intermittent malfunction exists, refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. |
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Power Window Schematics and Door Control Module Schematics Connector End View Reference: Power Door Systems Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 |
Does the scan tool display Idle? | Go to Step 3 | Go to Step 4 |
3 |
Does the window switch parameter change state? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 6 |
4 |
Does the scan tool display Idle? | Go to Step 7 | Go to Step 5 |
5 | Test the appropriate window circuit for a short to ground or voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 6 |
6 | Inspect for poor connections at the harness connector of the PDM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 8 |
7 | Inspect for poor connections at the harness connector of the passenger window switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 9 |
8 | Replace the PDM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup and programming. Did you complete the replacement? | Go to Step 10 | -- |
9 | Replace the front passenger window switch. Refer to Front Side Door Window Switch Replacement - Right Side . Did you complete the replacement? | Go to Step 10 | -- |
10 |
Does the DTC reset? | Go to Step 2 | System OK |
