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Automatic Transmission
6 3 Indicator Light Circuit Troubleshooting (cont'd)
13. Turn the ignition switch O F F .
14. Disconnect PCM connector B (25P).
15. Check for continuity between body ground and B20
and B22 terminals.
P C M C O N N E C T O R B ( 2 5 P )
L G 1 ( B R N / B L K )
1
2
3
4
5
/
8
9
10
11 12 13 14
/
16 17 18
19
2 0
21 2 2
2 3 2 4 2 5
L G 2 ( B R N / B L K )
(0)
( S )
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
between ground
and
each
terminal?
Y E S — G o to step 16.
NO—Repair open in the wire(s) between the B20 or
B22 terminal and ground ( G 1 0 D . B
16. Turn the ignition switch ON (II).
17. Measure the voltage between terminals B1 and B
22, and between terminals B9 and B20.
P C M C O N N E C T O R B ( 2 5 P )
I G P 1 ( Y E L / B L K )
I G P 2 ( Y E L / B L K )
1
2
3
4
5
/
8
9
10
11 12 1 3 14
/
16 17 18
19
2 0
21 2 2
2 3 2 4 2 5
L G 1 ( B R N / B L K )
L G 2 ( B R N / B L K )
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
18. Turn the ignition switch OFF.
19. Reconnect PCM connector B (25P).
20. Connect the digital multimeter between the A14
and B20 or B22 terminals.
21. Turn the ignition switch ON (II).
P C M C O N N E C T O R S
A (32P)
B (25P)
2
3
4
5
6
8 9 10
23
32
1
2
3 4 5
L G 1 ( B R N / B L K )
23
D 4 I N D ( G R N / B L K )
"
L G 2 ( B R N / B L K )
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 voltage for at least 2
seconds?
YES—Check for open in the wire between the A14
terminal and the gauge assembly. If wire is OK,
check for a faulty B indicator bulb or a faulty printed
circuit board in the gauge assembly. •
N O - G o t o step 22.
Is there battery
voltage?
Y E S - G o t o step 18.
NO —Repair open or short in the wire between the
B1 or B9 terminal and the PGM-FI main relay and
from fuse No. 46 in the under-hood fuse/relay box
to the PGM-FI main relay. •
14-94
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Table of Contents
Troubleshooting
