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11. Connect IAC valve 3P connector terminal No. 3 to
body ground w i t h a j u m p e r wire.
I A C V A L V E 3 P C O N N E C T O R
1
2
3
JUMPER
W I R E
I A C V ( B L K / B L U )
W i r e s i d e o f f e m a l e t e r m i n a l s
12. Check for continuity between ECM/PCM connector
terminal B23 and body ground.
E C M / P C M C O N N E C T O R B (25P)
1
2
3
4
5
7
8
9
10
11 12
13 14
16
17 18
19
20
21 22
23 24 25
I A C V
(BLK/BLU)
W i r e s i d e o f f e m a l e t e r m i n a l s
Is there
continuity?
Y E S - G o to step 13.
NO—Repair open in the wire between the IAC valve
and the ECM/PCM (B23).B
13. Reconnect the IAC valve 3P connector.
14. Turn the ignition switch ON (II).
15. Measure voltage between body ground and ECM/
PCM connector terminal B23.
E C M / P C M C O N N E C T O R B (25P)
1
2
3
4
5
/
8
9
10
11 12
13
14
/
16 17 18
19
20
21 22
23 24 25
I A C V ( B L K / B L U )
W i r e s i d e o f f e m a l e t e r m i n a l s
Is there battery
voltage?
Y E S - S u b s t i t u t e a known-good ECM/PCM and
recheck (see page 11-5). If the symptom/indication
goes away, replace the original ECM/PCM. •
N O - R e p l a c e the IAC valve. •
11-103
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Table of Contents
Troubleshooting
