B16D3-11

B16D3-11-RIGHT DRL LAMP CONTROL - CIRCUIT SHORT TO GROUND





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

Theory of Operation

The BCM provides a voltage output through the front daytime running lamp driver circuits to power the Daytime Running Lamp (DRL) Light Emitting Diodes (LED)s, which are located in the Front Lamp unit. A ground path for the lamps is present through the harness to the body sheet metal. For additional information on the Daytime Running Lamps operation, Exterior Lamps - Operation.

- When Monitored:
With the DRL active.

- Set Condition:
When the Body Control Module (BCM) detects a low condition on the (L59) Right Daytime Running Lamp Driver circuit for more than five seconds.





1. INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all DTCs.
3. Cycle the ignition from off to on.
4. With the brakes firmly applied, shift the gear selector into Drive.
5. Wait 10 seconds.
6. With the scan tool, read DTCs.

Does the scan tool display DTC: B16D3-11-RIGHT DRL LAMP CONTROL - CIRCUIT SHORT TO GROUND?

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. ATTEMPT TO SET THE OPPOSITE DTC
1. Shift the gear selector into Park.
2. Turn the ignition off.
3. Disconnect the Right Front Lamp Assembly C1 harness connector.
4. Turn the ignition on.
5. With the brakes firmly applied, shift the gear selector into Drive.
6. Wait 10 seconds.
7. With the scan tool, read DTCs.

Does the scan tool display DTC: B16D3-15-RIGHT DRL LAMP CONTROL - CIRCUIT SHORT TO BATTERY OR OPEN?

Yes

- Replace the Right Front Lamp Unit. Front Lamp Unit - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. CHECK THE (L59) RIGHT DAYTIME RUNNING LAMP DRIVER CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the BCM A harness connector.
3. Measure the resistance between ground and the (L59) Right Daytime Running Lamp Driver circuit.

Is the resistance above 10k Ohms?

Yes

- Replace the BCM. Body Control Module - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the short to ground in the (L59) Right Daytime Running Lamp Driver circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.