Operation CHARM: Car repair manuals for everyone.

B1861






B1861-PASSENGER WINDOW MOTOR CONTROL CIRCUIT OPEN







- When Monitored:
Whenever the module is awake.

- Set Condition:
When one or both Passenger Window Driver circuits (Up and Down) are not supplied with voltage, when they should be, during a window movement command for more than five ms., this code will set.





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

Does the scan tool display B1861-PASSENGER WINDOW MOTOR CONTROL CIRCUIT OPEN?

Yes

- Go To 2

No

- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. WINDOW MOTOR OR CIRCUIT OPEN




1. Turn the ignition off.
2. Disconnect the Passenger Window Motor connector.
3. Connect a test light between the (Q12) Passenger Window Driver Up circuit and the (Q22) Passenger Window Driver Down circuit.
4. Turn the ignition on.
5. Operate the passenger 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 will only flash momentarily each time the switch is actuated.

Yes

- Replace the Passenger Window Motor (regulator).
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. (Q22) PASSENGER WINDOW DRIVER DOWN CIRCUIT OPEN




1. Turn the ignition off.
2. Disconnect the Passenger Door Module C4 connector.
3. Measure the resistance of the (Q22) Passenger Window Driver Down circuit between the C4 module connector and the motor connector.

Is the resistance below 2.0 ohms?

No

- Repair the (Q22) Passenger Window Driver Down circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

Yes

- Go To 4

4. (Q12) PASSENGER WINDOW DRIVER UP CIRCUIT OPEN




1. Measure the resistance of the (Q12) Passenger Window Driver Up circuit between the C4 module connector and the motor connector.

Is the resistance below 2.0 ohms?

No

- Repair the (Q12) Passenger Window Driver Up circuit for an open.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

Yes

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