B161A

B161A-COURTESY/DOME LAMP CONTROL CIRCUIT







- When Monitored:
Continuously

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





1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. Turn the Courtesy Lamps on.
3. 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 (M24) Courtesy Lamp Driver circuit for a short to ground.
- 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 Console Courtesy Lamp (JS27) harness connector.
3. Disconnect the Map Lamp (JS41) harness connector.
4. Measure the resistance of the of the (M24) Courtesy Lamp Driver circuit.

Is the resistance above 10.0 Ohms?

Yes

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

No

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