Power Windows

1120-05 LEFT POWER WINDOW SWITCH SENSE CIRCUIT









For a complete Power Windows Circuit Diagram, Schematics and Diagrams.

Diagnostic Test

1. MEASURE THE VOLTAGE OF THE LEFT POWER WINDOW SWITCH SENSE CIRCUIT




Turn the ignition off.
Disconnect the Left Front Power Window Switch harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Turn the ignition on.
Measure the voltage of the Left Power Window Switch Sense circuit at the Left Front Power Window Switch harness connector.
Is the voltage above 10 volts?

Yes

- Go to 3

No

- Go to 2

2. MEASURE LEFT POWER WINDOW SWITCH SENSE CIRCUIT RESISTANCE




Turn the ignition off.
Disconnect the Body Control Module (BCM) harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Measure the resistance of the Left Power Window Switch Sense circuit from the Left Front Power Window Switch harness connector to the BCM C4 harness connector.
Is the resistance below 5.0 ohms?

Yes

- Replace the Body Control Module. Body Control Module - Removal.
- Perform BODY VERIFICATION TEST. Body Verification Test

No

- Repair the Left Power Window Switch Sense circuit for an open.
- Perform BODY VERIFICATION TEST. Body Verification Test

3. MEASURE GROUND CIRCUIT RESISTANCE




Turn the ignition off.
Disconnect the Body Control Module (BCM) harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Measure the resistance of the Ground circuit from the Left Front Power Window Switch harness connector to the BCM C4 harness connector.
Is the resistance below 5.0 ohms?

Yes

- Replace the Left Front Power Window Switch. Removal.
- Perform BODY VERIFICATION TEST. Body Verification Test

No

- Repair the Ground circuit for an open.
- Perform BODY VERIFICATION TEST. Body Verification Test