Wheel Sensor (Electrical Noise/Intermittent Interruption) - Acura Integra 1998 Service Manual

Integra 1998
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-
With the ignition switch ON
(lll, the ABS indicator does
not go off.
-
With the SCS s€.vice connec-
tor connected lsee page 19-
3 7 ) , O T C S 1 1 , 1 3 , 1 5 , 1 7 a r e
indicated.
Check for a short to pow6r in the
wheel sensor circuii:
1 . D i s c o n n e c t t h e A B S c o n t r o l
u nit 22P connector.
2. Start the engine.
3, Measure the voltage between
the appropriate wheel sensor
(+) circlit terminal and body
ground (see table).
Repair short to power in the {+)
circuit wire between the ABS
control unil and the appropriale
wheel sensor.
ls there 2 V or more?
Check for a short to body ground
in th6 wheel sensor circuil:
Check tor continuity between the
appropriate wheel sensor (+) cir-
c u i t t e r m i n a l a n d b o d y g r o u n d
(see table).
. Ropair short lo body ground in
t h e { + ) o r { - l c i r c u i t w i r e
between tho ABS contlol unit
and th6 .ppropriate whe€l sen-
. Roplaco the .ppropliate wheel
sensot.
ls there continuity?
Check for an open in the wheel
sensor circuit:
Check the resistance between the
appropriate wheel sensor (+) and
1-) circuit terminals (see table).
Ropair open in the {+) or (-} cir-
cuit wire, or 3hort to the l+) cir-
cuit wire in the l-l circuit wire
between tho ABS control unit
and th6 appropriate whgel 3en-
Replace th6 appropdate wh€el
sensot.
ls the resistance OK?
FronvRear: 450 - 2,050 O/
20"c (68.F)
NOTE: lf you do not erase the DTC, the ABS indicator will not go off until vehicle speed
exceeds 6 mph (10 km/h).
ABS CONTNOL UNIT 22P CONNECTOF
FLw {+l {GRN/ORN)
FRw {+} (GRN/BLKI
oTc
Appropriate Terminal
( + ) S i d e
( ) s i d e
1 1 ( R i g h t - f r o n t ) No. 9: FRW (+)
No. 8: FBW {-)
13 (Left'front)
N o . 7 : F L W ( + ) No.6: FLW 1-)
l 5 l B i g h t - r e a r ) i N o . 1 9 : R R W ( + !o. 20: RBW (-
17 (Left'r€af)
1 7 : R L W { + ',1o. 18: RLW (-
Wire side of lemale terminals
FLW (+) (GRN/ORN)
FRW l+){GRN/BLK)
FLw l+l (GRN/ORNI FRW {-) {GRN}
FLW t-l
(+l (GRN/BLKI
RL
(-I {BLU/YELI
RLW l-) (GBY)
RRW (+) (GRN/YEL)
Check for loose ABS control unit
connectors. lf necessary. substi-
tute a known-good ABS control
unii and recheck.
RLW {+l (LT BLUI
RLw (+l {LT BLU}
-t
( o
___r
l'!*
6
l
8
9 l 0 1 t
1 4
1 7
t 8
t 9
20
| ***
-t
(()
Y
Troubleshooting
DTC 1 1, 13, 15, 17 : Wheel Sensor (open/short to body ground/short to power)
\
L
9-44
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