B1207

DTC Troubleshooting: B1205, B1206, B1207, or Indicator AUTO

DTC B1205: Climate Control Unit Lost Communication with Gauge Control Module (VSP/NE message)

DTC B1206 or DTC indicator AUTO: Climate Control Unit Lost Communication with Gauge Control Module (ECT message)

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 the B-CAN system diagnosis test mode A. Troubleshooting - B-CAN System Diagnosis Test Mode A

1. Clear the DTC with the HDS.

2. Turn the ignition switch to LOCK (0), and then to ON (II).

3. Wait for 6 seconds or more.

4. Do the self-diagnostic function with the HDS Initial Inspection and Diagnostic Overview or climate control unit. Initial Inspection and Diagnostic Overview

5. Check the DTCs.

Are DTCs B1205, and/or B1206 or AUTO, and/or B1207 indicated?
YES - Go to step 6.

NO - Intermittent failure, check for loose wires or poor connections on the climate control unit connector A (40P).


6. Check for DTCs using the HDS.

Are any of the following DTCs indicated; B1011, B1060, B2160, B1357, B1805, B1408, or B2157?
YES - Do the gauge control module input test. Gauge Control Module Input Test

NO - Do the climate control unit troubleshooting. Testing and Inspection