B1207

DTC B1207: Climate Control Unit Lost Communication with Gauge Control Module (ILLUMI message)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN system diagnosis test mode A.

1. Clear the DTC with the HDS.
2. Turn the ignition switch OFF and then ON (II).
3. Wait for 6 seconds or more.
4. Do the self-diagnostic with the HDS or climate control unit.
5. Check for DTCs.

Is DTC B1207 indicated?

YES - Go to step 6.

NO - Intermittent failure, check for loose wires or poor connections on the gauge control module circuit.

6. Clear for DTCs using the HDS.

Is DTC B2157 indicated?

YES - Go to the gauge control module input test. Gauge Control Module Input Test

NO - The climate control unit is faulty, replace the climate control unit.