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)
WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
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 ).