B285C

B285C - Left Rear LED Turn Lamp Control Circuit Low

For a complete wiring diagram, refer to.

• When Monitored: With the Turn Signal activated.

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






Test Step 1 - INTERMITTENT CONDITION

• Turn the ignition on.

• With the scan tool, clear all DTCs.

• Turn the Left Turn Signal on.

• With the scan tool, read DTCs.

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

Yes

• Go to Test Step 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. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 2 - REAR LEFT TURN SIGNAL LAMP

• Turn the ignition off.

• Disconnect the Rear Left Tail Lamp harness connector.

• Turn the ignition on.

• Turn the Left Turn Signal on.

• With the scan tool, read DTCs.

Does the DTC reset?

Yes

• Go to Test Step 3

No

• Replace the Rear Left Tail Lamp. .

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 3 - CHECK THE (L67) LEFT TURN SIGNAL CONTROL CIRCUIT FOR A SHORT TO GROUND

• Turn the ignition off.

• Disconnect the TIPM C4 harness connector.

• 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. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Repair the short to ground in the (L67) Left Rear Stop/Turn Signal Control circuit.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior