Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Power Window Schematics | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
2 | Verify that the inoperative power windows express down function fault is present. Does the power windows express down function operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Inspect for poor connections at the harness connector of the body control module (BCM). 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 5 | Go to Step 4 |
4 | With the ignition ON, and all connectors attached, probe the power window relay switch feed circuit at the BCM with a test lamp connected to a good ground. Does the test lamp illuminate? | Go to Step 6 | Go to Step 5 |
5 | Repair an open in the power window relay switch feed circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 7 | -- |
6 | Replace the BCM. Refer to Body Control Module Replacement Did you complete the repair? | Go to Step 7 | -- |
7 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
