abs HONDA INTEGRA 1998 4.G Repair Manual

Troubleshooting
- When the v€hicl€ starts, theABS indicator comes on.- With the SCS service connec-tor connected lsee page 19-371. DTC 52 is indicated.
DTC 52: Motor Stuck OFF
l
l
NOTE: Connect the pump motor relayconnector terminal No.3 to No. 4 for amoment, and rechock the fuse. It the fuseis blown, check lor a short to bodyground in the motor power source circuit.
NOTE: Connect the pump motor relayconnector terminal No. 3 to No. 4 for amoment, and recheck the fuse. lf thetuse is blown, check for a short to bodyground in the MCK circuit.
PUTIIP MOTOR RELAY CONNECTOB
+B
Check the PMR circuit.lTo page 19-54)
JUMPER WIRE
Terminal side of temale terminals
Check fo. an open in the MOTORcircuit:1. Disconnect the pump motor
2. Connect the pump motorrelay connector terminal No.3 to No. 4 with a jumper wire.3. Measure the voltage betweenthe pum p motor connectorterminal No. l and bodyground,
PUMP MOTOR CONNECTON
u_l_lj
I MOTOR tWHTt
n)Y-L
Terminal side of temale terrninals
YES
Check the ABS MOTOR (40 A)fuse in the under hood ABSfuse/relay box, and reinstall thetuse if it is OK.
Feplace the fus6 and recheck.
check the ABS uNlT (10 A) fusein the under-hood ABS fuse/relaybox, and reinstall the fuse if it isoK.
Reolace the tuse and r.check.
Roplece tha pump motor .el.y.
Check the motor circuit:Connect the pump motor relayconnector terminal No. 3 to No, 4with a jumper wire for a moment.
Does the pump motor operate?
Rop.i. opan in the wir. betwconthc underhood ABS fuso/r6ltybox and the pump motor,
{To page 19-53}

Troubleshooting
DTG 52: Motor Stuck OFF lcont'd)
PUMP ITIOTOR BELAY CONNECTOf,
JUMPERWIRE
Terminel side of female i€rminals
aBs oo tnol ut{tT 12P cof{f{EGToR
Wire side of lemale terminals
I
.t!
Ch.ck tor !n op.n in thc PMR cir-
cuit:1. Connoct tho pump motor relay
connector terminal No. 2 toNo.3 with a iumpor wir6.2, M€asure th6 voltage betw6entho A8S control unit 12P con-nector terminal No. 12 andbody ground.
R.p.ir op.n In th. wir. batw..nth. und.r-hood ABS tu../r.l.Ybox lnd th. ABS codrol unil.
Check lor a rho to pow.r in th.PMR circuii:1. Removo the jumper wire frompump motor relay connedor.2. Start the engine.3. ireasur6 the voltage betwoenth6 ABS control unit 12P con-nector terminal No. 12 8ndbody ground.
R.p.ir .hort to pow.r In th. wil.
brtwa!n lh. und..-hood ABSfur./r.l.y box rnd th. A8S con-trol unit.
ls th€re batt€ry voltage?
lf tha problam occura again,r.pllce th. ABS control unit.

DTC 53: Motor Stuck ON
LI
UNDER.HOOD ABS FUSE/RELAY BOXlP@ NECTOR
MCK IBRN/YELI
Wire side oI female terminals
PUMP MOTOR CONI{ECTOR
.F\t2 1lY
IMoroR twHrl
(v)
Y
Terminal side of temale terminals
MOTOR (WHT}
- With th. ignition switch ONlll), tho ABS indicator doesnot go oft.- With th. SCS scrvico connec-lor connoctod |roo prgo 19-371. DTC 5:l i! indicrted.
Chock that the pump motor opeFates with the ignition switch OFF.
R.phce the pump motor rolay.lPump motor ralay ltuck ON.)Does the pump motor oporate?
Check the ABS UNIT (10 A) fusein tho under-hood fuse/relay box,and reinstallthe fuse if it is OK.
Replace tho fuso and rcchock,
Chock tor an opcn in thc MCKcircuit:1. Turn the ignition switch ON (lll.
2. Measure the voltage betvveenthe under-hood ABS luse/relaybox 4P connector terminal No.2 and body ground.
R.psir opan in thc wiro botwoonthc undar-hood ABS tuso/rolaybox .nd lho ABS contJol unh.
ls there approx. 10 V?
Chock tor .n opon in tho MOIORcircuit:1. Disconnect the pump motorconnector,2. Measure the voltage botweenterminal No. l and bodyground.
Ropair open in the wire bstwsenth6 undor-hood ABS fu3e/rclevbox rnd the pump molor.
ls there approx. 10 V?
Check tor tn opor in the MOTORGND circuii:Measure the voltage between thepumo motor connector tetminalNo. 1 and No.2.
.Repeir open in tho wirobotwaan the pump motor andbody ground.. Rep.ir poor ground (G202).
ls there approx. 10 V?
(To page 19-56)
MOTON GND
(cont'd)

Troubleshooting
DTC 53: Motor Stuck ON (cont'd)
\{
i
(From page 19-55)
Chock to. r shon to body ground
in tho PMR circuit:L Remove the pump motorrelay.2. Disconnect the ABS controlunit 12P conn6ctor.3. Check lor continuity b€tweenterminal No. 12 and bodyground.
R6pair 3hort to body ground
b.tween th6 under-hood ABSfuso/rolay box .nd the ABS con-irol unit.
lf tho problom occurs again,roplaco tho ABS contlol unh.
COIVTROL UN]T I2P OONI{ECTOR
/Lr-r-F-,--T+t1t2t3l4t516l
FT;sTrrFoFiFZ._T
PMR tYEL/RED[
(o)
Y
wire side of lemale terminals
9-56

DTC 54: Fail-safe Relay
- With tho ignition switch ONlll), the ABs indicato. do.snol qo oft.- lr
ith tho SCS sorvico oonncc-tor connoctod (aoe pago 19-37). DTC 5,1 i3 indicli.d.
NOTE: lf the fuse is blown after the fail-sato relay is on. check for a short tobody ground in the wire between thetail-saf6 relay, pump motor relay andmodulator unit.
-
FAIL.SAFE RELAY CONN€CTON
+8 IWHT/GRNI J-F1r- l l2l


EIN(v) -
Y
Wire sade ol female terminals
+8{WHT/GRN| '.5
JUMPEFWIFE ( ffi-----1113
soltNorD{BRN/BLK}
MODULATOR UN]T CON ECTOR
sot"ENorD{BRN/BLKI
Terminal side ot female terminals
Check the ABS 81 (20 A) fuse inthe under'hood ABS fuse/relaybox, and reinstall the luse if it isoK.
R.olaco tho fu3! .nd rochocl.
Check the fail-safe relay (see sec-tion 23) and leavo tho tail-saferetay removed.
Chock lor an opan in th6 +8 cir-cuit:Measure the voltage between th€fail-safe relay connector terminalNo. 1 and body ground.
Ropair opon in tha wire botwecnths undor-hood ABS fuso/rol.ybox.nd ihe tail.3at r.lay,
ls there battery voltage?
Chock tor.n op6n in thesolenoid power 3ourco circuit:1. Connect the fail'saIe relayconnector terminal No. 1 toNo. 3 with a jumper wire.2. Disconnect the modulatorunit connector,3. Measure tho voltage betweenthe modulator unit connectorterminal No. 10 and bodyground.
Rep.ir open in tha wira betwoonthe fril-rete rolay and tha modu-lator unit.
ls there battery voltage?
(To page 19-58)(cont'dl

Troubleshooting
DTG 54: Fail-safe Relay (cont'd)
MODULATOB UN]T CONI{ESTOR
sor5NorD f;Fl-'Ti)
rBRN/BLn 1qll9l-1i
l-\!xtz)
O)
Y
Terminal side of female terminals
ll
ABS CONTROL UNIT 22P CONITECTOR
Wire side ol female terminals
FAIL.SAFE RELAY CONI{ECTOR
Wire side of temale terminals
ABS CONTROL U[{IT 22P OONNECTOR
{From page'19-57)
Ch6ck tor a shon to powor in thesolenoid powgr source circuit:1. Remove the iumper wire fromthe fail-sale relay connector.2. Measure the voltage betweenthe mod{rlator unit connectortorminal No. 10 and bodyground.
Repair shon to powor in tho wire
between tho ftil{at rolaY, mod-uletor unit and tho undar-hoodABS fu3e/relay box.
ls there battery vokage?
Check tor a $hort to Power in theFSR circuh:1. Disconnect the ABS controlunit 22P connector.2. Turn the ignition switch ON (ll).
3. Measure the voltage betweenthe terminal No.21 and bodyground.
Repair short to powor in tha wircbetwoon the ABS control unit
rnd tho tail{sla rehy.ls there battery voltage?
Chgck for a 3hort to body ground
in th6 FSR circuit:Check for continuiw between theABS control unit 22P connectorterminal No. 21 and body ground.
Rapair short to bodv ground inthe wir. betwoon the ABS con-trol unit andthe f.il-sdo rolay.
Check for an open in the FSRGND circuit:Check lor continuity betlveen thefail safe relay connector terminalNo. 4 and body ground.
Repeir op.n in ths wire betweentho tail-sate.olay and bodyground.
Check for sn opan in the FSR cir-cuh:1. Installthe lail-sale relay.2. Check for continuity betweenthe ABS control unit 22P connector terminal No, 21 andbody ground.
Repair opgn in the wire betwoonthe ABS control unit snd tho fail-safe r6lay.ls there continuity?
lf the probl6m occurs.gain,roolaco the ABS control unit.
Wire side of female terminals

DTC 61,62: lgnition Voltage
* With th6 ignition lwitch ONlll), th. ABS indicator come!on.- With tho SCS 3ervico connac-tor connected {aoe pag. 19-371, DTC 61, 62 .r. indlc.t d.
Problcm veriticrtion:1. Erase the DTC.2. Test-drive the vehicle at 6mph (10 km/h) or more.
Does the ABS indicatorcome on?Th. tFl.m is OK !t thi! timo.
Parform tha approprirta lrou-blcahooting tor th. code.ls DTC 61 or 62 indicated?
!t
19-59

DTC 71: Different Diameter tire
- While driving the vehicl€. theABS indicator comes on.- With the SCS sorvico connec-tor connocted (see page 19-371. DTC 71 is indicated.
Troubleshooting
Central Processing Unit (CPU)
- With the ignition switch ON(lll, tho ABS indicator does
not go off.- With the SCS service connec-lor connectgd (sss page 19-
3?), DTC 81 is indic€ted.
Problem ve.ification:1. Erase the DTC.2. Test-drive the vehicle.
Does the ABS indicatorcome on and is DTC 81 indicated?
R€place th6 ABS control unit.
lntermittent failure; the vehicle is
OK rt this time.
19-60

Modulator Unit
Removal/lnstallation
CAUTION:
. Do not spill brake fluid on lhe vehicle; it may damage the paint; il brake fluid does contact the paint, wash it offimmediately with water.
. Tak€ care notto damage or delorm the brake lines during removal and installation.. To provont the brake fluid ftom flowing, plug and cover the hos€ ends and ioints with a shop towel or equiyalent material.
Removal
1. Disconnect the modulator unit and DUmD motor connectors.
2. Disconnect the brake lines, then remove the modulator unit.
Installation
1. lnstall the modulator unit, then connect the brake lines. Tighten the flare nuts to 15 N.m (1.5 kgf.m, 11 lbf.ft).2. Connect the modulator unit and pump motor connectors.
3. Bleed the brake system, starting with the front wheels.
4. Start the engine, and check that the ABS indicator goes off.
5. Test-drive the vehicle, and check that the ABS indicator does not come on.
From master cylinder
from master cylinderprimary side
PUMP MOTOB CONNECTOR
MOUNT
UNlT
MODULATOR UNIT CONNECTOR
toright front
8 mm EOLT22 N.m {2.2 kg[.m, 16 lbl.ftl
6 mm NUT9.8 N.m 11.0 ks{.m,7.2lbtftl
9-6

ABS Control Unit
RemovaUlnstallation
1. Remove the right quarter trim panel.
2. Disconnect the ABS control unit connectors.
3. Remove the ABS control unit.
Pulsers/Wheel Sensors
Inspection
/t
l\
I
Check the front and rear pulser for chipped or dam-
aged teeth.
Measure the air gap between tho wheel sensor and
pulser sllthe way around while rotating the pulser.
Standard: 0.4 - 1.0 mm (0.02 - 0.04 in)
NOTE: lf the gap exceeds 1.0 mm (0.04 in), the
probability is a distorted suspension arm which
should be reDlaced.
Front/R..1
L-TJ
.t-
t=
l-
Et-E_
Install the ABS control unit in the reverse order of
removal.
Start the engine, and check that the ABS indicator
goes off.
Test-drive the vehicle, and check that the ABS indi-
cator does not come on.
19-62