Unit Check (Quick Check): A/C

This diagnosis detects if the vehicle is in the ON mode using information provided over the F-CAN bus, then it tests the climate control signal via the B-CAN bus between the audio-navigation unit and the climate control unit. Make sure the power system turn on for this test.

If Connection shows NG, check for hard error codes .

Courtesy of HONDA, U.S.A., INC.