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 (coolant temp message); DTC B1207; Climate Control Unit Lost Communication with Gauge Control Module (illumination message)
NOTE:
If you are troubleshooting multiple DTCs, be sure to follow the instructions in the B-CAN system diagnosis test mode A (see
TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A
).
- Clear the DTCs with the HDS.
- Turn the ignition switch to LOCK (0) and then back to ON (II).
- Wait for 6 seconds or more.
- Do the self-diagnostic function with the HDS (see HOW TO USE THE SELF-DIAGNOSTIC FUNCTION WITH THE HDS ) or the climate control unit (see HOW TO USE THE SELF-DIAGNOSTIC FUNCTION WITHOUT THE HDS ).
- 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).
- 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 GAUGE CONTROL MODULE INPUT TEST ).
NO -Do the climate control power and ground circuit troubleshooting (see CLIMATE CONTROL UNIT POWER AND GROUND CIRCUIT TROUBLESHOOTING ).