B1206

DTC B1206 or TW sensor error is indicated.
Climate Control Unit Lost Communication with Gauge Control Module (ECT 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. Operate the climate control system in several modes.
3. Check for DTCs using the HDS or self-diagnostic.

Is DTC B1206 or TW sensor error indicated?

YES - The climate control unit is faulty, replace the climate control unit.

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