Page 929 of 1254
TROUBLE
DIAGNOSES
ComDonent Parts
and Connector localion
N
\
4l
:rl
ts ffi
BR€5
Page 930 of 1254
TROUBLE
DIAGNOSES
Circuit Dlaghm
lor
Ouic* Pinpoint
Check
The unit .id6
6nn.clo€ wilh a double circle
@ " are
connecied to ihe harness side connec-
io6 shown in
lha "c.mpon.nt
Pa.ls and connector Localion . (se
page
BR-55.)
The temi.aLnumbeF in
lhe @nne.lor @incide wilh
lhs cncuit numbeB suroundod by a single cir'
cr6"O.
Pi:
E
6
d
:,
sa
a-
@o BR€6
Page 931 of 1254

TROUALE
DIAGNOSES
Description -
Ag.S. Checker
OUTUNE
The A.B.S, re.re. €n ch.ck rhe A,B.S. .l€cr cal compon€nt .ircuirs and hydhullc bEke systen (Active
. Molor
rclay circuir
. Solenoid valve relay circuit
. Solenoid valv€
cncuil . Wheelsensor clrcuit
. Power 6upply and grcund
ctclil . Waminglampcrcuil
. slop lamp swilch signal c rcuil . Allehalor oulpur .ircuil
. potualor
aciive iesl
DESCRIPnON
&le)
13
12
1 . 1 LED indi€tor lor
the wh€el
speed when ihe p6gdh
swilch is s6t to 6.
2. 1 LED indi€lor
foi lhe batiery voltage.
4.7 LED indi€toB for prcO€m
swilch sning 1.
5.2 LED indi@loB for pbQ€m
swilch stifg 2.
6. Adapter lead lor conn€clion to lhe
A.B.S. wiring hansss in th€ v€hcl€.
7. Plsh bunon tor morof
elay co.iolwhen lhe p@q€m
switch is
s o 3,
a.1 LED indicalor lor program
swilch s€nino 3.
10.3 LED ndicalorc lof pegEm
switch setting 5.
1 1 . 2 Pu6h
bunons tor lriggenng of lhe "Hold pE6sure"
and 'io6rease
p.esslc '
sotsnoid,vatve lun6
lions when
lhe progah
$ilch is ser lo 5.
12. Rotary switch lor ihe selection ol single wheels.
This is opeabto wh€n lh6 prcgEm
switch is
set to
13.Poinler inslrument lof pbgEm
swinth seting 6.
8R.57
Page 932 of 1254

TROUBLE
OIAGNOSES
oo A
*r*,i{
o o o oioi
r+ Ldl-_r---
3 4.14.2434.4
t 4 --J
12
1 +
| tFIl
j(gr T-
2
r---T_---r
to_tQ_i aL
I
1 ao
2 Description
-
A.B.S, Checker (Com'd)
CHECK ITEMS
Descdplion of symbols
Tho l€st6r obtains
.upply voltage tom tre veh cle s ba[6r,.
This supply
vollage is monilo€d dufng
lh€ .ntie tesiinq
sequence and in allprcO6m
switch setinqs.
One LED (1)
s .onstanlly lli
to ind €ie rhal lh6 vo taq6 is sul
Progrsm €wibch *tting 1
1. LED indicalor
lor gound
@nnocrion 1.
2. LEO
indioalor lor g6und
bnnection 2.
3. LEO indicalof lor lh6 dioda lor
waminq tanp conrrc .
4. LED indicalor lor lh6 nlernal
resistances ol lh8 $l€noid
valv€s in lhe
actualor and the off posilion
ot th6 valve
rclay.
4.1. LEO ndicalorlorthe
lrcnr eft-hand wheel.
4.2. LEO indicabf lor lh€ lbnt fqhGhand
whee.
4.3. LEO indicalorlorlhe
@ar leh.hand wh€61,
4.a LEO
indicabrlorlh€ Gar ght-hand
wheet.
ProgEm snch enhg 2
1. LED indi.alor lor
co.nedion lo all.halort€mina
L.
2. LED indicaior
ior connoclion lo lhe
stop-tamp switch.
Prografi swilch $ning
3
1 . I FD 'nd,cro
lor r. noror
@ray and pump
ia th6 actu.ror
2. PLs
bunon ror
conrcr ol
lhe mdor re av. Tne -EO ind'ca-
lor does.ol lght up unli
lhe push-buion
is op€rat€d.
Program switch *tring 4
o
ae Y 1 o
v 2
BR{8
Page 933 of 1254

TROUSLE
DIAGNOSES
fia
o1ffiS';o! V VT
123 Description
-
A.B.S. Checker (Con|'d)
ProgEm $hch ening 5
Aclile ch€ck ol the 6oieno d
valv€6 and valv€ €lay in lh6 aclu-
checking that the $le.oid valves channel assiqnmenls are
1. Push blton and LED ndicalorlorthe 'Dec@as€
pr6sur6'
The LED musl lightup aner opedi.q otfte push-bunon.
2. Push bunon and LED indicalor lor lhe 'Hold
prcssuG'
The LED mlsl llght
up after operalion
ollh€ push.bltlon.
3. LED ind€lor iorllnclioning ol lhe varve relay. This LED
musi lighl up contnuously when lhe prog€m
switch is sel
4. syfrbot tor sotenoid vatves.
20@
0....L,4"-3-,,"4,',,l,,f ,.,1_,.s
1 Whel€l€ctlon
seftch
When the prograd
swilch is sel lo 5 and 6, the swlch €n be
adjusted lo lhe wheello be nspeciod.
1. Bolaryswlch lof wh6.l s6l€clion.
PrcgEm swltch s€tdng
6
ChekinS ol lh€ wh6el sensor signal and c€aranc
belween
lh€ wh6€l snsor and blor. Ch€.k ol the wheel
sene6 ior
2. LEO lndicalor lor rolary
motion ol lhe whees. This LED
lighis up conlinuousy when the insp€clion sp€6d is ad6'
qual6. on y
lh6n musllh€ insltumenr ind
€ton be read
oli.
xt
-: >,1---2
aJ-3
a t-4
D-tl. Fi{
_
iTi;-.
Llq {
BR.59
Page 934 of 1254
TROUBLE
DIAGNOSES
lnsDeciion -
A.B.S. Checket
lleEr ddw wi'|
rh. r.€t r cdner€d
aaior€ peloming
[email protected] wilh the A.B.S. checker, @nnect lhe adapler co.nedor lo tho v€hi-
cl€ ham€ss connector lor conlol unit while ihe ignilion $itch is oFF.
CHECKNG lTE S
@,o
@.@
6)@
o@
@.o
o
@
@,@
BR{O
Page 935 of 1254
TNOUBLE
DIAGNOSES
Inspection -
A.g,S. Checker (Cont'd)
@
oo
o@
oo
@o
ProgEm sitch $ning
5 m€rm
"ACnVE CHECK.
The linaicheck
is inthe lom ol a lesr dfve. With
thee.g ne tunn ng, heconloltamp musr
90 ou1.
Ddve
at a speed of at least 30 knvh (20
MPH) for o.gerthan 20ses. Dur n9 this perod,
thewaming l.mp
BR61
Page 936 of 1254
TROUBLE
DIAGNOSES
Dlagnostic Procedure
1
(Power Supply and Grcund
Circuit Check)
E chek !fts busn
bFhd
o
tud 6iii!
t eks
bnhd
BR62