Honda Accord 2008 Manual page 1874

07/11/02 09:39:19 61TA0000_210_0010
General Troubleshooting Information
How to Use the Self-diagnostic Function
The HVAC control unit has a self-diagnostic function for heating, ventilation, and air conditioning system. To run the
self-diagnostic function, do the following:
1. Turn the ignition switch to LOCK (0) and then to ON (II).
2. Set the FAN CONTROL dial to OFF, the TEMPERATURE CONTROL dial on Max Cool, and select the VENT mode.
3. Turn the ignition switch to LOCK (0) and then to ON (II).
4. Press and hold the RECIRCULATION CONTROL button, then within 10 seconds press and release the REAR
WINDOW DEFOGGER/MIRROR DEFOGGER button five times. Release the RECIRCULATION CONTROL button; the
recirculation indicator blinks two times, then the self-diagnostic begins.
NOTE:
• The blower motor will run at various speeds when in the self-diagnostic mode.
• If there is any problem in the system after the self-diagnostic function is finished, the recirculation indicator
blinks Diagnostic Trouble Code (DTC) 1 through 15. In the case of multiple problems, the recirculation indicator
blinks in order with the lowest number DTC repeatedly.
• If no DTCs are found, the indicator does not blink.
＊０１
Example of DTC Indication Pattern (DTC 3)
＊０２
Recirculation
indicator
comes on
Recirculation
indicator
goes off
ＴＡ０８ＡＨＡＧ２４１０００３２５８５ＢＢＡＴ００
RECIRCULATION INDICATOR
RECIRCULATION CONTROL BUTTON
0.3 sec 0.3 sec
Recirculation or
A/C indicator
comes on
Recirculation or
A/C indicator
goes off
Self-diagnostic begin
VENT BUTTON
0.3 sec 0.3 sec
3.0 sec
Self-diagnostic finished
REAR WINDOW DEFOGGER/
MIRROR DEFOGGER BUTTON
3.0 sec
(cont'd)
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