Wheel Sensor - Honda Civic 1998 Service Manual

Troubleshooting
Wheel Sensor
Diagnostic Trouble Code (DTCI 11-18: Wheel Sensor Diagnosis
NOTE: The ABS indicator light comes on when only the drive wheels are turning. signal disturbance is detected. etc. Therefore,
test-drive the car at a speed of 12 mph (20 km/h) or more after turning the ignition switch from OFF to ON 0l). and if the ABS
indicator light does not come on, the system is OK.
RL1 ILT 8LU)
FRl {GRN/BLKI
WIRE SIDE OF FEMALE TERMINALS
ABS CONTROL UNIT 26P CONNECTOR
RRO
IELU/YELI
RRl {GRN/YELI
FLl {GRN/ORNI
DTC
Appropriate Terminal
(O) SIDE
( 1 ) S I D E
1 1 , l 2 ( R i g h r - l r o n t )
N o . 8 : F R o
N o . 2 1 : F R l
13, 14 (Left-front)
N o 1 0 : F L o N o . 2 3 : F L l
1 5 , 1 6 ( R i s h t - r e a f )
No.4: RBo
N o . 1 7 : R R 1
'17,
18 {Left-rear) N o . 6 : R L o N o . 1 9 : R L ' l
NOTE: Judgement value tor short to
N O
NOTE
. Normal voltage: Approx. 2 V
. 0 V: Replace the ABS control unit.
. 4 V or more indicates a short to power.
-
With tho ignition switch ON
llll, ABS indicltor lisht does
not go off.
-
After dliving, ABS indicator
light comes on.
-
With the SCS service connec-
tor connocted ls€€ page 1$501,
DTCa 11-18 ar€ indicated.
Check the wh6ol sensor circuit:
l Disconnect the ABS control
unit 26P connector.
2 . M e a s u r e t h e
r e s i s t a n c e
between the appropriate wheel
sensor 10) and (1) circuit termi-
. Roplir opcn in the l0l or ('l) cir-
cuit wire, or ahort to tho (0, cir-
cuit wir. in thc (1) circuit wire
betwoon tha ABS control unit
and appropriata wheal son3or.
' Roplace tho approprirto wh.el
3an30r,
ls the resistance OK?
/Front: 750
- 1050 o/20.c, 68"F\
lRear.
850 - 1150 020'C, 68"F/
Check tor a shon to body ground
in the wheel sensor circuit:
Check for continuity between the
ABS control unit 26P connector
appropriate wheel sensor (0) cir
cuit terminal* and body ground.
' Rspair 3hort to body ground in
t h e l 0 ) o r { 1 1 c i r c u i t w i r e
between the ABS control unit
and appropriato wheel s€nsor,
. Replace the appropiiate wheel
ls there continuity?
Check tor a short to power in the
wheel sensor circuitl
1. Reconnect the ABS controlunit
26P connector.
2. Start the engine.
3. Measure the voltage between
the ABS control unit 26P con-
nector appropriate wheel sen
s o r ( 0 ) c i r c u i t t e r m i n a l a n d
body ground.
Repair shon to powor in the (01
or {l) circuit wiro b€tween the
ABS control unit and appropriate
ls there 4 V or more?
(To page 19-53)
19-52