B1206

DTC B1206 or TW sensor error is indicated: Climate Control Unit Lost Communication with Gauge Control Module (ECr 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 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.