Diagnostic Test

1) INSPECT THE LEFT TURN SIGNAL INDICATOR LAMP
Turn the ignition off.

Remove the Left Turn Signal Indicator Lamp from the Instrument Cluster and inspect the lamp for an open filament.

Is the lamp filament open?

Yes
1. Replace the Left Turn Signal Indicator Lamp. (Refer to ELECTRICAL/INSTRUMENT CLUSTER - STANDARD PROCEDURE) .
2. Perform BODY VERIFICATION TEST .
No
1. Go to step 2).
2) MEASURE LEFT TURN SIGNAL INDICATOR DRIVER CIRCUIT RESISTANCE

Fig 1: Checking Indicator Driver Circuit
Courtesy of DAIMLERCHRYSLER CORP.

With the ignition off.

Disconnect the Remote Keyless Entry Relay.

Disconnect the Instrument Cluster C1 harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Measure the resistance of the Left Turn Signal Indicator Driver circuit from the RKE Relay harness connector cavity 2 to the Instrument Cluster C1 harness connector cavity 1A.

Is the resistance below 5.0 ohms?

Yes
1. Replace the Instrument Cluster. (Refer to ELECTRICAL/INSTRUMENT CLUSTER - REMOVAL) .
2. Perform BODY VERIFICATION TEST .
No
1. Repair the Left Turn Signal Indicator Driver circuit for an open.
2. Perform BODY VERIFICATION TEST .