U0203

U0203-00-LOST COMMUNICATION WITH LEFT FRONT DOOR MODULE

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

- When Monitored:
With the ignition on.

Battery voltage between 10 and 16 volts.

Body Control Module (BCM) is configured correctly.

- Set Condition:
Bus messages not received from the Driver Door Module for approximately two to five seconds.





CHECK FOR AN ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)
1. Turn the ignition on.
2. With the scan tool, read the active DTCs.

Does the scan tool display this DTC as active?

Yes

- Perform the U0199-00-Lost Communication with Driver Door Module diagnostic procedure. U0199

No

- Perform the Stored Lost Communication DTCs diagnostic procedure. Stored Lost Communication DTCs