Honda Prelude 1993 Service Manual page 909

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With ongine running, ABS in-
dicator light is oN.
-
With servico chgck conneclor
ju.npod (s66 pag. l9-551,
DTCa 4-1, 4-2, 4-4 andlol
4-8 a.e indicaled.
Disconnect the 18P 14WS: 20P)
connector from the ABS control
unil.
Check the rcsistance of each
sensor between the positive and
negatave:
. GRN/BLK: Front Right Positive
GRN: Front Right Negative
. GRN/BLU: Front LeIt Positive
BRN: Front Left Negative
. GFN/YEL: Rear Right Positive
BLU/YEL: Rear Right Negative
. LT ELIJ: Rear Left Positive
GRY: Rear LeIt Negative
ls there
Front: 70O-11OO O,
Rear r 10OO 1600 o?
R€psir short in Senaor wire ol
Roplaco tho whool ren3or.
Disconnoct the 2P connector of
the wheel sensor.
Check for loose ABS conttol unit
connoctors. Chock thai th6 son-
3o. is installod p.operly. ll
nocoslary. substitulo g known-
good ABS control unit and
rsch€ck.
ls there
Front: 7O0- 1
'100 0,
Rear : 1OO0- 1600 0?
Diagnostic Troublo Code {DTC} 4-1 to 4-8: Wh6el Sensor
CAUTION: Us€ only th6 digital multimeter to ch€ck ths systsm.
NOTE: lf a malfunction is detected, this code sppears and the fail-safe function is activated. The ABS indicator light may
come ON after restarting the engine until the DTC is erased (by disconnecting the ABS 82 (15 A) fuse in the under-hood
fuse/relav box for three seconds).
18P CONNECTOR {2WSl
BRN: FL O GRN: FR O GRN/BLU: FL @
cRy: RL O BLU/YEL: RR O
LT/BLU: BL @
Vi6w from ABS control unit terminal side.
20P CONNECTOR l4WSl
BRN: FL O
GRN: FR O GRN/BLU: FL O
GBY: RL O BLU/YEL: RR O
LT/BLU: RL O
View lrom ABS control unit terminal side
GRN/BLK: FR @
GRN/YEL: RR @
SENSOR-SIOE CONNECTOR
FRONT
REAR
_/r-l\-
I|Ell
//---\\ 5--/
(l zTI' |) rFSb
r - t t l
\ + #
. -
@
LOr
700- l too o?
1000-1600 0?
View from terminal side.
34
33 32 3 1
Lq
30 2A
27
24 23 21
1 9 1 8 1 7 1 6 1 5
GRN/YEL:
(To page 19-66)
1 9 - 6 5