Operation CHARM: Car repair manuals for everyone.

B285D






B285D - Right 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 Right Turn Signal on.

With the scan tool, read DTCs.

Does the scan tool display active: B285D-RIGHT 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 RIGHT TURN SIGNAL LAMP

Turn the ignition off.

Disconnect the Rear Right Tail Lamp harness connector.

Turn the ignition on.

Turn the Right Turn Signal on.

With the scan tool, read DTCs.

Does the DTC reset?

Yes

Go to Test Step 3

No

Replace the Rear Right Tail Lamp. .

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

Test Step 3 - CHECK THE (L66) RIGHT REAR STOP/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 (L66) Right 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 (L66) Right Rear Stop/Turn Signal Control circuit.

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