DTC B1202: HVAC Control Unit Internal Error

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2014 Honda Ridgeline, 2013 Honda Ridgeline, 2012 Honda Ridgeline, 2011 Honda Ridgeline, and 2010 Honda Ridgeline. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Check the battery condition (see BATTERY TEST ) and the charging system (see CHARGING SYSTEM INDICATOR CIRCUIT TROUBLESHOOTING ).
If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN system diagnosis test mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Clear the DTC with the HDS.
Operate the heater-A/C control system in several modes.
Check for DTCs using the HDS.
Is DTC B1202 indicated?

YES -The HVAC control unit is faulty, replace the HVAC control unit (see HVAC CONTROL UNIT REMOVAL/INSTALLATION ). ■

NO -Intermittent failure, the HVAC control unit is OK at this time. Check for loose connection at the HVAC control unit 30P connector. ■