Information - Acura 2002 RSX Service Manual

Climate Control
General Troubleshooting Information
How to Retrieve a DTC
The Climate Control Unit has a self-diagnosis function. To run the self-diagnosis function, do the following:
1. Turn the ignition switch OFF.
2. Tu rn the fan switch OFF, the tem peratu re control dial toMaxCool (60.F or 1g.C), and the mode control dialtoVent.
3 , T u r n t h e i g n i t i o n s w i t c h O N ( l l ) , t h e n p r e s s a n d h o l d t h e r e c i r c u l a t i o n c o n t r o l s w i t c h . W i t h i n l O s e c o n d s w h i l e
holding the switch down, press the rear window defogger switch five times. The recirculation indicator blinks
two times and the Ay'C indicator comes on, then the self-diagnosis will begin. About 15 seconds later, the self_
diagnosis will finish and the Ay'C indicator goes off. lf there is any problem in the system after finished self-
diagnosis, the recirculation indicator will blink the Diagnostic Trouble Code {DTC) 1 through 13. When problems in
the evaporator temperature sensor circuit are detected (codes 14 and t5), the Ay'C indicator will blink the DTC. lf no
DTCS are found. the indicator will not blink.
A/C INOICATOR
swtTcH
MODE CONTROL DIAL
RECIRCULATION CONTROL SWTTCH
Example of DTC indication Pattern (DTC 3)
0.3 sgc
TEMPERATURE CONTROL OIAL
REAR WINDOW DEFOGGER SWITCH
0.3 sec t } | |
Recirculation or
Recirculation
indicatol
comes on
Recirculation
indicator
goes ofl
A/C indicator
Recirculation or
A/C indicator I
goes ott
1 . 5 s 6 c
< '
Self-diagnosisbegin
Selt-diagnosisfinbhed
Resetting the Self-diagnosis Function
Turn the ignition switch OFF to cancel the self-diagnosis function. After completing repair work, run the self-diagnosis
function again to make sure that there are no other malfunctions.
1.5 sec
,1
RECIRCULATION INDICATOR
Self-diagnosis begin
21-8