B16AB-11

B16AB-11-TRUNK LAMP CONTROL - CIRCUIT SHORT TO GROUND





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

- When Monitored:
With the ignition on.

- Set Condition:
When the Cluster detects a short to ground in the Courtesy Lamps Driver circuit.





1. CHECK FOR AN ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)
1. Turn the ignition on.
2. With the scan tool, read DTCs.

Does the scan tool display this DTC as active?

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. CHECK THE CARGO LAMPS FOR AN INTERNAL SHORT TO GROUND

NOTE: Using the wiring diagram as a guide, disconnect each Cargo Lamp one at a time and check for an active DTC.

1. Turn the ignition off.
2. Disconnect one of the lamps on the circuit.
3. Turn the ignition on.
4. With the scan tool, read DTCs.

Does the scan tool display this DTC as active?

Yes

- Repeat this step for each Cargo Lamp. Once each lamp has been disconnected: Go To 3
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Cargo Lamp causing the short to ground condition.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. CHECK THE (M25) COURTESY LAMPS DRIVER CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the BCM F harness connector.
3. Measure the resistance between ground and the (M25) Courtesy Lamps Driver circuit.

Is the resistance below 10K Ohms?

Yes

- Repair the short to ground in the (M25) Courtesy Lamps Driver circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

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