Honda Civic Service Manual page 747

Electrical Troubleshooting ('gO - 98 Modelsl
Troubleshooting Flowchart - Countershaft Speed Sensor
Po$iblo Causa
' Loosg or laulty conncction
botwocn tho PCM and c.i hrr-
n1't!
' Disconnoctad countorahott
lpo€{ san3or oonnoctot
. Short or opon in countorshaft
speed lonsor wire
. F ulty counte.lhalt spe6d s6n-
sol
COUNTERSHAFT SPEED SENSOR
CONNECTOR
lFI,]1 -F=r
9 l
L_l
Terminal side ol male terminals
PCM CONNECTOR B I25P}
1
l'
NOTE; Record allfreeze data before you troubleshoot.
. OBO ll Scln Tool indicat6 Code
m7z).
. S6lt-dirgnosis E
indic.tol
light blink! nin. tim6,
ls the countershaft spoed sensor
installed properly?
Moa3ure CountoEhaft Sp€ed S6n-
sor Reaktanc€ at tho Son3or Con-
noctor
1. Disconnect the 2P connector
trom the countershaft spged
sensor connector,
2. Measure the resistance of the
countershaft sDeed sensor,
ls the resistance 400 - 600 0?
Chock Countersh.ft Spood Scr|3ol
for a Shoft Circuit:
1. Disconnect the B {25P) con
nector from the PCM.
2. Check for continuity between
the body ground and the 823
t e r m i n a l a n d 8 2 2 t e r m i n a l
individually.
Repai. .hort in th. wiroa b.t$re€n
tho 823 lnd 822 torminals .nd
lho counteBhaft lpocd aenro..
T o p a g e 1 4 - 6 9
4-68
Wire side of temale terminals