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 Instrument Cluster detects a short to battery on the Control circuit.





1. TEST FOR INTERMITTENT CONDITION
1. Turn the ignition on.
2. Clear all Instrument Cluster DTCs.
3. Turn the Courtesy Lamps on.
4. 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 (M24) COURTESY LAMP DRIVER CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the Instrument 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 LAMP DRIVER CIRCUIT FOR AN OPEN




1. Turn the ignition off.
2. Disconnect the Instrument Cluster C2 harness connector.
3. Activate the left and right vanity lamps (if equipped), the glove box lamp, and the left and right door handle lamps.
4. Turn the ignition on.
5. Measure the voltage of the (M24) Glove Box Lamp Driver circuit.

Is the voltage below 10.0 volts?

Yes

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

No

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