Diagnostic Test

Turn the ignition on.

With the scan tool, clear all DTC's.

Turn the Left Turn Signal on.

With the scan tool, read DTC's.

Does the scan tool display active: B163B-FRONT LEFT TURN LAMP CONTROL CIRCUIT LOW? 

Yes 

1. Go to  2).

No 

1. The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.
2. Perform BODY VERIFICATION TEST - VER 1 .

Turn the ignition off.

Disconnect the Front Left Turn Signal Bulb.

Turn the ignition on.

With the scan tool, read DTC's.

Does the DTC reset? 

Yes 

1. Go to  3).

No 

1. Replace the Front Left Turn Signal Bulb in accordance with the Service Information.
2. Perform BODY VERIFICATION TEST - VER 1 .

Turn the ignition off.

Disconnect the TIPM C3 harness connector.

Disconnect the Front Left Turn Signal Lamp harness connector.

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

Is the resistance above 10k ohms? 

Yes 

1. Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
2. Perform BODY VERIFICATION TEST - VER 1 .

No 

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