DTC B2970: Climate Control Unit Lost Communication with Gauge Control Unit (RM 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 ).
- Check for DTCs.
Is DTC B2970 indicated?
YES -Go to step 6.
NO -Intermittent failure, check for a loose wire or poor connection in the climate control unit connector A (40P).
- Check for DTCs with the HDS.
Are any of the following DTCs indicated; B1005, B1959, B2162 or B1158 Indicated?
YES -Do the relay control module input test (see RELAY CONTROL MODULE INPUT TEST ).
NO -Do the climate control power and ground circuit troubleshooting (see CLIMATE CONTROL UNIT POWER AND GROUND CIRCUIT TROUBLESHOOTING ).