B161E

B161E-READING LAMP CONTROL CIRCUIT






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

- When Monitored:
Continuously

- Set Condition:
When the Cluster detects a short to battery 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: B161E-READING LAMP CONTROL CIRCUIT?

Yes

- Go To 2

No

- The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
- 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 Cluster C2 harness connector.
3. Measure the resistance between the (M27) Reading/Rail Lamps Driver circuit and ground.

Is the resistance below 5.0 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. Turn the ignition off.
2. Disconnect the Rear Dome Lamp harness connector.
3. Measure the resistance of the (M27) Reading/Rail Lamps Driver circuit.

Is the resistance above 10 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.