Acura 2002 RSX Service Manual page 613

21. Turn the ignition switch OFF.
22. Disconnect PCM connector A (3'lP).
23. Check for continuity between PCM connector
terminal A21 and bodY ground.
PCM CONNECTOR A {31P)
1
2 3
4
5 6 1
U
8 9
0
t l
12
l 5 6
I
21
VCCl {YEL/RED)
o
Wire side o{ {emale termlnals
ts there continuitY?
YES Repair short to ground in the wire between
PCM connector terminal A21 and the countershaft
speed sensor connector. I
NOTE: A short to ground on this circuit damages
the Pcl\4.
NO U pdate the PCM if it does not have the latest
soflware, or substitute a known-good PCM, then
recheck (see page !4-7) lf the symptom/indication
goes away with a known-good PCM, replace the
o r i g i n a l P C M . I
24. Measure the voltage between PCM connector
terminals C15 and A23 o( 424.
PCM CONNECTORS
A { 3 1 P )
2 1 3 a l 5 l 6 l 7
8 t 9 2
3 4 t 5
6
ltzlt/ltsltoWlglalzt
9 LO
I
cr-----l
LG'l |BRN/YEL)/ax'?
LG2IBRN/YEL}
NC (BLU}
Wire side of female terminals
ls there about 5 V ?
YES Repair open in the wire between PCM
connector terminal C 15 and the countershaft speed
sensor connector.l
NO Update the PCM if it does not have the latest
soltware, or substitute a known-good PCM, then
recheck (see page 14-7) lf the symptom/indication
goes away with a known-good PCM, replace the
o r i g i n a l P C M . I
14-81