Diagnostic Test

Turn the ignition on.

With the scan tool, clear all DTC's.

Turn the Left Turn Signals on.

With the scan tool, read DTC's.

Does the scan tool read active: B17B8-LEFT STOP LAMP CONTROL CIRCUIT OVERCURRENT? 

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.

Remove Left Stop Lamp Bulb.

Inspect the Left Stop Lamp Bulb.

Is the inoperative bulb OK? 

Yes 

1. Go to  3).

No 

1. Replace the Inoperative bulb in accordance with the Service Information.
2. Perform BODY VERIFICATION TEST - VER 1 .

Disconnect the TIPM C7 harness connector.

Disconnect the Left Stop Lamp harness connector.

Measure the resistance between ground and the (L53) Left Stop Lamp Control circuit.

Is the resistance above 10k ohms? 

Yes 

1. Go to  4).

No 

1. Repair the (L53) Left Stop Lamp Control circuit for a short to ground.
2. Perform BODY VERIFICATION TEST - VER 1 .

Turn the ignition on.

Measure for voltage on the (L53) Left Stop Lamp Control circuit.

Is there any voltage present? 

Yes 

1. Repair the (L543) Left Stop Lamp Control circuit short to voltage.
2. Perform BODY VERIFICATION TEST - VER 1 .

No 

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