Driver Door Module (DDM)

9027-MASTER SWITCH - LEFT WINDOW SWITCH STUCK





For a complete wiring diagram, Refer to the Wiring Information Electrical Diagrams.

- When Monitored:
Continuously

- Set Condition:
When the Driver Window Switch Mux circuit, in the Driver Power Window/Mirror Switch, is held below 9.0 volts for longer than 25 seconds, this code will set.





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

Does the scan tool display 9027-MASTER SWITCH - LEFT WINDOW SWITCH STUCK?

Yes

- Go To 2

No

- The conditions that caused this code to set are not present at this time. Check for any foreign objects or sticky substance in the Driver Window/Mirror Switch and remove as necessary. Also, using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- Perform the BODY VERIFICATION TEST. Verification Tests.

2. DRIVER WINDOW SWITCH MUX CIRCUIT PARTIAL SHORT TO GROUND




1. Disconnect the Driver Power Window/Mirror Switch C1 connector
2. Measure the voltage between the Driver Window Switch Mux circuit and ground.

Is the voltage above 9.0 volts?

Yes

- Replace the Driver Power Window/Mirror Switch.
- Perform the BODY VERIFICATION TEST. Verification Tests.

No

- Repair the Driver Window Switch Mux circuit for a partial short to ground.
- Perform the BODY VERIFICATION TEST. Verification Tests.