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Idle Control System
Air Conditioning Signal (cont'd)
(Fro
m
page
,,
·155)
UNDER·HOOD FUSE/RELAY
BOX 9P CONNECTOR (C352)
Check
for
an open in the wire
NO
(ACCUne':
I
2 [ - 3
•
Is there
a
clicking noise
from
Momentarily connect the under-
the
Ale
compressor clutch?
hood
fuse/relay
box 9P connector
5
6
;/
8
9
termin al
No.5
to
body
gro
und
JUMPER
1
YES
with
a ju
m
per
wire
several
times.
WIRE
ACC (BLK/RED)
Wire side of
female
terminals
15
there
a clicking noise
from
NO
I
See air
conditioner inspection
the
Ale
compressor
clutch?
I
(see
section
22).
YES
Repair
open
in the wire
between
the PCM
(A17)
and the
Ale
clutch
relay.
A
(32P)
PCM CONNECTORS
C
(3IP)
Check
the
Ale
operation:
lGI
V
ACS
1-
Start the
engine.
(BRN/BlK)
I
I
(BlU/RED)
2.
Turn
the
blower
switch
ON.
11
'2
3 4
5
6V
/
9
10
llJ
11
2
3 4
5
6
7
8
/
' 1
0
3.
Turn the
Ale
switch ON.
1121/
V
15
16 17
1819
20
/
22
23
24
J
Ul
12
13
14
lL
16 17 18lL
V
/V
V
V
27
V
V
L
lL
L.:::::::.
V
/ L
V
/ /
V
/V
Wire side
of
female terminals
NO
Check for an open in the wire
"
lACS
linel
:
Does the
AlC operate?
./
Measure
voltage
between PCM
YES
connector
terminals A9
and
CS.
Air conditioning
signal is OK
.
NO
I
Is
there less than 1.0
V?
Repair
open In
the wire between
./
I
the PCM (CSI
and
the AIC
switch.
YES
-
Substitute
a
known·good PCM
and recheck. If
symptom/indi-
cation
goes
away,
replace the
original
PCM.
-
See
the
air
conditioner
Inspec-
tion
(see section
221
.
11-156
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Troubleshooting
