Honda Civic Service Manual page 477

I
JUMP€R
WIRE
UNDER-HOOO FUSE/RELAY
sox 9P coNNEcroR lca52l
1
2
3
a
5 6
8 9
ACC (8LK/REDI
Wire side of
terminals
ECM/PCM CONNECTORS
A (32P1
f e m a l e
Wire side of {emale terminals
(From page 11-206)
Check for an open in the wite
IACC lino):
Momentarily connect under_hood
luse/relay box 9P connector teF
minal No. 5 to body ground with
a jumper wire several times.
ls there a clicking noise from
the Iy'C compressor clutch?
S6e air conditioner insPoction
l3oa section 221
ls there a clicking noise lrom
the ly'C compressor clutch?
Ropair open in tho wilo betwg€n
the ECM/PCM lA17) and the A/C
clutch rolay.
Chock for the oporation of lho
AIC:
1, Start the engine.
2. Turn the blower switch ON
3. Turn the ray'C switch ON.
Check lor an open in the wiro
(ACS lino):
Measure voltage between ECM/
P C M c o n n e c t o r t e r m i n a l s A 2 7
and 820.
Does the Iy'C operate?
Air conditioning signal is OK.
Repair op6n in the wiro bctwoon
lhe ECM/PCM lA27l and tho A/C
3witch.
ls voltage lessthan 1.0 V?
-
Sub6iitut€ r known€ood ECtt /
PCM and rccheck. ll sYmP-
t o m / i n d i c a t i o n 9 o e 3 . w a Y ,
replaca the original ECM/PCM
-
See the ai. condhionGr in3p€c-
tion lsee soc{ion 221.
11-207