B285C

B285C-LEFT REAR LED TURN LAMP CONTROL CIRCUIT LOW

For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
With the Turn Signal activated.

- Set Condition:
When the Totally Integrated Power Module (TIPM) detects a Low condition.





Diagnostic Test

1. INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all DTCs.
3. Turn the Left Turn Signal on.
4. With the scan tool, read DTCs.

Does the scan tool display active: B285C-LEFT REAR LED TURN LAMP CONTROL CIRCUIT LOW?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. REAR LEFT TURN SIGNAL LAMP
1. Turn the ignition off.
2. Disconnect the Rear Left Tail Lamp harness connector.
3. Turn the ignition on.
4. Turn the Left Turn Signal on.
5. With the scan tool, read DTCs.

Does the DTC reset?

Yes

- Go To 3

No

- Replace the Rear Left Tail Lamp.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. CHECK THE (L67) LEFT TURN SIGNAL CONTROL CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect the TIPM C4 harness connector.
3. Measure the resistance between ground and the (L67) Left Rear Stop/Turn Signal Control circuit.

Is the resistance above 10k Ohms?

Yes

- Replace the Totally Integrated Power Module (TIPM).
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the short to ground in the (L67) Left Rear Stop/Turn Signal Control circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.