B1856

B1856-DRIVER WINDOW CONTROL CIRCUIT OPEN











- When Monitored:
Whenever the Window Motor is operating.

- Set Condition:
The Driver Window Driver (Up) circuit does not change from high to low during a window movement command.





1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, erase all the DTCs.
3. Try to operate the Driver Window up and down several times.
4. Wait 30 seconds.
5. With the scan tool, read the DTCs.

Does the scan tool display this DTC?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. WINDOW MOTOR OR CIRCUIT OPEN




1. Turn the ignition off.
2. Disconnect the Driver Window Motor connector.
3. Connect a test light between the (Q11) Drive Window Driver (Up) circuit and the (Q21) Driver Window Driver (Down) circuit.
4. Turn the ignition on.
5. Trip the driver door latch to the closed position.
6. Operate the driver window switch up and down several times while observing the test light.

Does the test light illuminate brightly when the switch is pressed in both directions? With the express up window, the test light may only flash momentarily.

Yes

- Replace the Driver Window Motor.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. (Q11) DRIVER WINDOW DRIVER (UP) CIRCUIT OPEN




1. Turn the ignition off.
2. Measure the resistance of the (Q11) Driver Window Driver (Up) circuit between the Driver Window Motor harness connector and the Driver Door Module C4 harness connector.

Is the resistance below 10.0 Ohms?

Yes

- Go To 4

No

- Repair the (Q11) Driver Window Driver (Up) circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

4. (Q21) DRIVER WINDOW DRIVER (DOWN) CIRCUIT OPEN




1. Measure the resistance of the (Q21) Driver Window Driver (Down) circuit between the Driver Window Motor harness connector and the Driver Door Module C4 harness connector.

Is the resistance below 10.0 Ohms?

Yes

- Replace the Driver Door Module.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the (Q21) Driver Window Driver (Down) circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.