How to Use the Self-Diagnostic Function without the HDS

Button 

Button	Button Name
Courtesy of HONDA, U.S.A., INC.	AUTO button
Courtesy of HONDA, U.S.A., INC.	ON/OFF button
Courtesy of HONDA, U.S.A., INC.	REAR WINDOW DEFOGGER/MIRROR DEFOGGER * button
Courtesy of HONDA, U.S.A., INC.	RECIRCULATION button
Courtesy of HONDA, U.S.A., INC.	WINDSHIELD DEFROST button

*: With mirror defogger

The climate control unit has a self-diagnostic function. To run the self-diagnostic function, do the following:

1. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.

2. Press and hold the ON/OFF button, then within 10 seconds press and release the REAR WINDOW DEFOGGER/MIRROR DEFOGGER * button five times. Release the ON/OFF button.*: With mirror defoggerALL LCD segments come on for 2 seconds, then the self-diagnostic function begins.NOTE: 

• The blower motor will run at various speeds regardless of what the panel is displaying.
• If there is any problem in the system, the temperature indicator flashes 88. Refer to checking for DTCs.
• If there is more than one DTC, they are displayed one at a time in sequence followed by a pause (all the display indicator segments illuminate) between the DTCs.
• If no DTCs are present, the temperature indicator will flash "no".

Canceling the Self-Diagnostic Function 

4. Turn the vehicle to the OFF (LOCK) mode to cancel the self-diagnostic function. After completing repair work, run the self-diagnostic function again to make sure that there are no other DTCs.