B161A

B161A-COURTESY/DOME LAMP CONTROL CIRCUIT





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

- When Monitored:
Continuously

- Set Condition:
When the Cluster detects a short to battery on the Control circuit.





1. CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read DTCs.

Does the scan tool read: B161A-COURTESY/DOME LAMP CONTROL CIRCUIT?

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.

2. CHECK THE (M24) COURTESY LAMPS DRIVER CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the Cluster C2 harness connector.
3. Measure the resistance between the (M24) Courtesy Lamp Driver circuit and ground.

Is the resistance below 5.0 Ohms?

Yes

- Repair the short to ground in the (M24) Courtesy Lamp Driver circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. CHECK THE (M24) COURTESY LAMPS DRIVER CIRCUIT FOR AN OPEN




1. Turn the ignition off.
2. Disconnect the Dome Lamp harness connector.
3. Measure the resistance of the (M24) Courtesy Lamp Driver circuit between the Cluster C2 and Dome Lamp harness connectors.

Is the resistance above 5.0 Ohms?

Yes

- Repair the open in the (M24) Courtesy Lamp Driver circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Cluster.
- Perform the BODY VERIFICATION TEST. Body Verification Test.