DTC Troubleshooting: B1205 (AUTO), B1206 (AUTO), B1207 (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 See: Powertrain
Management/Computers and Control Systems/Information Bus/Testing and Inspection/Component Tests and General Diagnostics/Troubleshooting
- B-CAN System Diagnosis Test Mode A.
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Wait for 6 seconds or more.
4. Do the self-diagnostic function with the HDS or the climate control unit.
5. Check for 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 in 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 See: Instrument Panel, Gauges and Warning Indicators/Testing and Inspection/Component Tests and
General Diagnostics/Gauge Control Module Input Test.?
NO -
Do the climate control unit troubleshooting See: Heating and Air Conditioning/Control Assembly/Testing and Inspection.?
B1206
DTC Troubleshooting: B1205 (AUTO), B1206 (AUTO), B1207 (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 See: Powertrain
Management/Computers and Control Systems/Information Bus/Testing and Inspection/Component Tests and General Diagnostics/Troubleshooting
- B-CAN System Diagnosis Test Mode A.
