Diagnostic Test

With the scan tool, record and erase DTC's

Operate the Left Door Lock Switch in all positions several times.

Cycle the ignition from on to off.

Turn the ignition on.

With the scan tool, read DTC's.

Does the scan tool display B1934-DRIVER DOOR LOCK/UNLOCK SWITCH CIRCUIT STUCK? 

Yes 

1. Go To step  2).

No 

1. 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.
2. Perform BODY VERIFICATION TEST - VER 1. Refer to BODY VERIFICATION TEST - VER 1 .

Fig 1: Left Door Lock Switch connector

Courtesy of DAIMLERCHRYSLER CORP.

With the scan tool, erase DTC's.

Disconnect the Left Door Lock Switch connector.

With the scan tool, read DTC's.

Does the scan tool display B1934-DRIVER DOOR LOCK/UNLOCK SWITCH CIRCUIT STUCK? 

No 

1. Replace the Left Door Lock Switch.
2. Perform BODY VERIFICATION TEST - VER 1. Refer to BODY VERIFICATION TEST - VER 1 .

Yes 

1. Go To step  3).

Fig 2: Measuring Resistance Between Ground & Left Door Lock Switch MUX Circuit

Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition off.

Disconnect the Cluster C2 connector.

Measure the resistance between ground and the (P697) Left Door Lock Switch MUX circuit.

Is the resistance below 10,000.0 ohms? 

Yes 

1. Repair the (P697) Left Door Lock Switch MUX circuit for a short to ground.
2. Perform BODY VERIFICATION TEST - VER 1. Refer to BODY VERIFICATION TEST - VER 1 .

No 

1. Replace the Instrument Cluster in accordance with service information.
2. Perform BODY VERIFICATION TEST - VER 1. Refer to BODY VERIFICATION TEST - VER 1 .