B160A

B160A-PANEL DIMMER INPUT CIRCUIT LOW





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

- When Monitored:
With the Instrument Cluster awake.

- Set Condition:
Panel Dimmer Input less than 0.5 volts.





1. CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, record and erase DTCs.
3. Activate the Panel Dimmer Switch.
4. Wait 30 seconds.
5. With the scan tool, read DTCs.

Does the scan tool read this DTC as active?

Yes

- Go To 2

No

- The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
- Perform the BODY VERIFICATION TEST Body Verification Test

2. CHECK OPERATION OF HEADLAMP SWITCH




1. Disconnect the Headlamp Switch harness connector.
2. With the scan tool, read Instrument Cluster DTCs.

Does the scan tool display DTC: B160A-PANEL DIMMER INPUT CIRCUIT HIGH?

Yes

- Replace the Headlamp Switch.
- Perform the BODY VERIFICATION TEST Body Verification Test

No

- Go To 3

3. CHECK THE (E2) PANEL LAMPS DIMMER SIGNAL CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the Instrument Cluster C1 harness connector.
3. Measure the resistance between ground and the (E2) Panel Lamps Dimmer Signal Circuit.

Is the resistance below 10K ohms?

Yes

- Repair the (E2) Panel Lamps Dimmer Signal Circuit for a short to ground.
- Perform the BODY VERIFICATION TEST Body Verification Test

No

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