Test Description
WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
The number below refers to the step number on the diagnostic table.
- 6: This step ensures that the power window master switch lockout signal circuit is not the cause of the malfunction. This circuit supplies battery positive voltage, through the rear window lockout switch, to the rear window switches, and is used to enable or disable the rear window lockout feature. When the rear window lockout feature is enabled, the circuit is open and no voltage is supplied to the rear window switches. When the feature is not enabled, the circuit is connected to battery positive voltage. If this circuit is shorted to ground when the lockout feature is not enabled, the PWR WDO circuit breaker may cycle continuously OFF/ON until, either the lockout switch is pressed to open the circuit, or the circuit breaker is permanently damaged. All windows may be partially or totally inoperative while the fault is present.
Power Windows Inoperative - All
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Power Window Schematics Connector End View Reference: Power Door Systems Connector End Views |
|||
| 1 | Did you perform the Door Systems Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Door Systems |
| 2 | Verify that the all power windows inoperative fault is present. Do the power windows operate normally? |
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 |
|
Go to Step 4 | Go to Step 5 |
| 4 | Connect the test lamp between the accessory voltage circuit and the ground circuit of the harness connector. Does the test lamp illuminate? |
Go to Step 6 | Go to Step 8 |
| 5 | Test the accessory voltage circuits of the driver window and front passenger window switches for a short to ground or an open. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 10 | Go to Symptoms - Retained Accessory Power in Retained Accessory Power |
| 6 | Test the power window master switch lockout signal circuit for a short to ground. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 10 | Go to Step 7 |
| 7 | Inspect for poor connections at the harness connector of the driver window switch. Refer to Testing for Intermittent Conditions and Poor Connections
and to Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 10 | Go to Step 9 |
| 8 | Repair the open in the ground circuit. Refer to Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 10 | - |
| 9 | Replace the driver window switch. Refer to Mirror, Window, and Door Lock Switch Replacement . Did you complete the replacement? |
Go to Step 10 | - |
| 10 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 2 |