Honda Civic Service Manual page 932

Electrical Troubleshooting {'96 - 9g Models)
Troubleshooting Flowchart - Drive pulley Speed Sensor
' OBD ll Scan Tool indicates Code
P1885.
. Self-diagnosis E indicator tight
indicates Code 34.
NOTE: Record all freeze data before you troubleshoot,
C h e c k t h e d r i v e p u l l e y s p e e d s e n ,
s o r i n s t a l l a t i o n .
ls the drive pulley speed sen-
sor installed properly?
M6a3ure Drive Pulley Sp€ed S€n-
sor Resistance ai the Seosor Con-
nectot:
1. Disconnect the 2P connector
from the drive pulley speed
sensor connector.
2. Measure the resistance of the
drive pulley speed sensor.
ls the resistance 350 - 600 O?
Check Orive Pulley Speed Sen-
sor tor a Short Circuit:
1. Disconnect the B (22P)connec-
tortrom the TCM.
2. Check for continuity betveen
body ground and the 810 ter-
m i n a l a n d 8 1 7 t e r m i n a l i n d i
vidually.
Rspair shon in the wi.es botwoen
the Bl0 and 817 te.minals and
the driva pulloy 3peod 3eniol.
Measure Drive Pulley Sp€€d Sen-
sor Re3istance:
1. Connect the drive pulley speed
sensor 2P connector.
2 , M e a s u r e t h e
r e s i s t a n c e
between the 810 and 817 ter-
mtnals.
Repair loos6 t.rmin.l or open in
th. wiros botweon tho Bl0 and
817 torminals and thg driva pul-
ley sp€gd sensor.
ls the resistance 350 - 600 O?
Check tor looso TCM connoctor.
ll necessary, substituto a known-
good TCM and recheck.
Po$ible Cause
. Oisconn€cted drive pulley speed
sensor connector
. Shon or op€n in drive pulley
spged sonsor wire
. Faulty drive pulley spoed s.n-
sot
ORIVE PULLEY SPEED
SENSOR 2P CONNECTOR
lT_ T---_l
1 | 2 t l
t| ]--+i
- r r
l 9
t l
L_t
side oI male terminals
TCM CONNECTOR 8 I22PI
REO/BLU
Terminal
Wire side of female terminals
REO/8LU
J ( l
2
4 5 6 8 9 1 0
v
1 2 1 3 t 4 15 1 6 1 7 1 8
20
GRN
o
1 2 1
5
iliI;W1M
1 2
1 3
1 1 1 5 1 6
tdil)lil/l
GRN
14-254