Diagnostic Test

Turn the ignition on.

With the Scan Tool, clear all TIPM DTC's.

Turn the Left Turn Signals on.

With the scan tool, read the DTC information.

Does the Scan Tool read: B163B-FRONT LEFT TURN CONTROL CIRCUIT LOW? 

Yes 

1. Go to Step 2.

No 

1. The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
2. Perform the BODY VERIFICATION TEST - VER 1 .

Fig 1: Measuring Resistance Between Ground And Front Left Turn Signal Control Circuit

Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition off.

Disconnect the TIPM C4 connector.

Disconnect the Left Turn Signal Lamp harness connector.

Measure the resistance between ground and the (L61) Front Left Turn Signal Control circuit.

Is the resistance below 5.0 ohms? 

Yes 

1. Repair the (L61) Front Left Turn Signal Control circuit for a short to ground.
2. Perform the BODY VERIFICATION TEST - VER 1 .

No 

1. Replace the Front Control Module in accordance with the service information.
2. Perform the BODY VERIFICATION TEST - VER 1 .