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17. Check for continuity between body ground and
ECM/PCM connector terminal C5.
E C M / P C M C O N N E C T O R C (31P)
A L T F ( W H T / R E D )
1 2
3
/
5 6 7
8 9 10
/ /
13 14 15 16 17 18 19 20 21
/
23 24 25
26 27 28
29 30
/
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 —Repair short in the wire between the ECM/
PCM (C5) and the alternator. •
N O - S u b s t i t u t e a known-good ECM/PCM and
recheck (see page 11-5). If the prescribed voltage
is now available, replace the original ECM/PCM. I
Starter Switch Signal Circuit
Troubleshooting
NOTE:
• M/T: Clutch pedal be pressed
• A/T: Transmission in Park or neutral
1. Measure voltage between ECM/PCM connector
terminals A 2 4 and B20 with the ignition switch in
the start position (III).
E C M / P C M C O N N E C T O R S
/
2
3
4
5
6
/
8
9
10
12 13 14 15
/
17
18 19 20 21
23
24
25 26
21
28
29
30
32
S T S ( B L U / O R N )
B (25P)
1
2
3 4
5
/
7
8
9
10
11 12 13 14
/
16 17 18
19
20
21 22
2 3
24 25
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 —The starter switch signal is O K . B
N O - G o t o step 2.
2. Inspect the No. 13 STARTER SIGNAL (7.5 A) fuse in
the driver's under-dash fuse/relay box.
Is the fuse OK ?
Y E S —Repair open in the wire between the E C M /
PCM ( A 2 4 ) and the No. 13 STARTER SIGNAL (7.5 A)
f u s e . B
NO —Repair short in the wire between the E C M /
PCM (A24) and the No. 13 STARTER SIGNAL (7.5 A)
fuse or the PGM-FI main relay. Replace the No. 13
STARTER SIGNAL (7.5 A) f u s e . •
11-107
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Table of Contents
Troubleshooting
