B161E

B161E-READING LAMP CONTROL CIRCUIT





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

- When Monitored:
With the ignition on.

- Set Condition:
The Cluster detects a short to ground or open on the Reading/Rail Lamps Driver circuit.





1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. Turn the Reading Lamps on.
3. 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 (M27) READING/RAIL LAMPS DRIVER CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the Cargo Lamp harness connector.
3. Disconnect the Cluster C2 harness connector.
4. Measure the resistance between ground and the (M27) Reading/Rail Lamps Driver circuit.

Is the resistance below 10K Ohms?

Yes

- Repair the (M27) Reading/Rail Lamps Driver circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. CHECK THE (M27) READING/RAIL LAMPS DRIVER CIRCUIT FOR AN OPEN




1. Measure the resistance of the (M27) Reading/Rail Lamps Driver circuit.

Is the resistance above 10.0 Ohms?

Yes

- Repair the (M27) Reading/Rail Lamps 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.