B1852

B1852-DRIVER WINDOW SWITCH STUCK





For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

This test shows graphics, circuit numbers and text for a Left Hand Drive (LHD) vehicle. Right Hand Drive (RHD) is similar.

- When Monitored:
Whenever the module is awake.

- Set Condition:
When the Driver Window Mux circuit is below 3.5 volts for over 30 seconds.





1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, record and erase the DTCs.
3. Operate the Driver Window Switch in all positions several times.
4. Wait 30 seconds.
5. With the scan tool, read the DTCs.

Does the scan tool display B1852-DRIVER WINDOW SWITCH STUCK?

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. DRIVER WINDOW SWITCH SHORTED




1. With the scan tool, erase the DTCs.
2. Disconnect the Driver Window/Door Lock Switch C2 connector.
3. With the scan tool, read the active DTCs.

Does the scan tool display B1852-DRIVER WINDOW SWITCH CIRCUIT STUCK?

Yes

- Go To 3

No

- Replace the Driver Window/Door Lock Switch.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. (Q221) MASTER SWITCH LEFT FRONT WINDOW MUX CIRCUIT SHORTED TO GROUND




1. Turn the ignition off.
2. Disconnect the Driver Door Module C2 connector.
3. Measure the resistance between ground and the (Q221) Master Switch Left Front Window Mux circuit.

Is the resistance below 10,000 Ohms?

Yes

- Repair the (Q221) Master Switch Left Front Window Mux circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 4

4. (Q221) MASTER SWITCH LEFT FRONT WINDOW MUX CIRCUIT SHORT TO (Q994) DRIVER EXPRESS SWITCH RETURN CIRCUIT




1. Measure the resistance between the (Q221) Master Switch Left Front Window Mux circuit and the (Z421) Driver Express Switch Return circuit.

Is the resistance below 10,000 Ohms?

Yes

- Repair the (Q221) Master Switch Left Front Window Mux circuit for a short to the (Q994) Driver Express Switch Return circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

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