1997 HONDA CIVIC For

Troubleshooting
Wheel Sensor
Diagnostic Trouble Gode {DTC) ll-18: Wheol S€n3ol DiagnosisNoTE: 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 krn/h) or more after turning the ignition:witch from OFF to ON fll), and if the ABSindicator light does not come on, the svstem is OK.
0TcAppropriate Terminal(0)srDE11) SrD€r 1, 12 (Right-front)No.8: FRoNo.21: FRI13, 14 (Left-front)No. 10: FLoNo.23: FL115, 16 {Right-rear)No. {: RRoNo. 17: RRl17, 18 (Left-rear)No.6: RLoNo. 19: RLI
RLl (LT BLU}FRl (GRN/BLKI
Wire side ol female terminals
NO
NOTE:. Normal voltage: Approx.2 V' 0 V: Replace the ABS controt unit.. 4 V or more indicates a short to power.
A8S CONTROL UNIT 26P CONNECTOR
RRO
IBLU/YELI
RR1 IGRN/YELIFL1 IGRN/ORN}
- With the ignition switch ON{ll), ABS indicator tighr doe.noi go off,- Aftsr driving, ABS indicatotlight comes on.- With the SCS so.vice connac-tor conn€c,ted {soe pege 19-561,DTCs 11-18 a.e indicrted.
Chock lhe wheol sensor ci.cuit:1. Disconnect the ABS controlunit 26P connector.2. lleasure the resistancebetween the appropriate wheelsensor (0) and (1) circuit termi,
. Reprir op€n in the l0l or {0 cir-cuit wiro, or shon to thc {01 cir-cuit wi.o in thc {11 circuit wircbctween ths ABS control unitand approprieto wheel a6nsor.. R.pl.ce th€ epp.opri.te wheal3€nloa.
ls the resistance OK?
/Frontr 750 - 1050 o/20"C, 68.F \\Rear: 850- 1150 O/20.C, 68"F /
Check toru short to body groundin the wheel senso. circuit:Check for continuity between theABS control unit 26P connectorappropriate wheel sensor (0) circuit terminali and body ground.
. Rapair short to body ground inth6 (0) or lll cilcuit wi..bctwa.n th6 ABS control unitand appropdaie whoel lonsor.. Rep|'c6 tho appropriatc whcelsanlor.
Chock tor a sho.t to powe. in thowheel3en3or circuit:1. Reconnect the ABS control unit26P connector,2. Start the engine.3. Measure the voltage betweenthe ABS control unit 26P con-nector appropriate wheel sen-sor (0) circuit terminal andbody ground.
Ropair rhon to powo. in the l0lor lll circuit wire batw.en th€ABS cont.ol unit and .pplopriatawhccl !€naoa,
ls there 4 V or more?
fio page 19-65)
19-64

Troubleshooting
Solenoid
Diagnostic Trouble Code {DTC} 31-38: Solenoid Diagnosis
YES
ABS CONTROL UNIT 22P CONNECTOR
Wire side of female terminals
ABS CONTROL UNIT 26P CONNECTOR
FL.OUT (YEL/ALK)- With the ignition switch ON(lll, ABS indicator light doesnol go oft. or ABS indic.to.light comes on while ABS i3functioning.- With the SCS servico connec-tor connected ls€. pag€ 19-561,DTCa 31-38 are indicstod.
Check for a short lo powor in thosol6noid circuitl1. Disconnect the ABS controlunit 22P and 26P connectors.2. Sta rt the engine.3. Measure the voltage betweenthe ABS control unit connectorappropriate solenoid circuitterminal* and body ground.
Ropri. short to powor in thcappropriate solanoid ci.cuit wirobotw6.n ths ABS cont.ol unitand modulrtor unit.
ls there battery voltage?
Check for a short to body groundin the 3olenoid circuit:Check tor continuity between theappropriate solenoid circuit termi-nal* and body ground.
. Repair short to body ground inlhe .ppropriato solonoid circuitwire betwoan th6 ABS controlunit and modllato. unit.. Replaco the modul.tor unit.
Check th€ ABS control unit:'1. Turn the ignition switch OFF.2. Connect the ABS control unit22P and 26P connectors.3. Connect the SCS service con-
4. Turn the ignition switch ON {ll}.5. Measure the voltage betweenthe ABS control unit 26P con-nector appropriate CONI circuitterminal++ and body ground.
Check for loos€ ABS control unhconnectora. It naceslrry, aub3ti-tutc . known-good ABS controlunit tnd recheck.
ls there approx. 3 V?
DTCAppropriateConnectorAppropriateTerminal
31: FRJN22PNo. 1
32: FR-OUT22PNo.12
33i FL'IN22PNo. 11
34: FL OUT22PNo.10
3s: RRIN26PNo.13
36: RR-OUT22PNo. 21
37: RLIN26PNo.25
38: RL-OUT26PNo.12RL.OUT IYEL}
Wire side of female terminals
DTCAppropriateTerminal
31: FR-lNNo. 2: SCOM
32: FR-OUTNo. 2: SCOM
33i FLINNo. 1: rcOM
34: FL-OUTNo. l: PCOM
35: RR{NNo.1:PCOM
36: RR-OUTNo. 1: rcOM
37rRL'lNNo. 2: SCOM
38: RL-OUTNo. 2: SCOM
RL.OUT (YEL}
19-66
(To page 19-671

Troubleshooting
ABS Pump Motor
Diagnostic Trouble Codo {DTC} 51-53r ABS pump Motor Diagnosis
YES NOTE: Short the PMR terminat to body
NOTE: Reinstall ground for a moment, and recheck the fuse.
the fuse if it is OK lf the fuse is blown, check for a short to bodyground in the MCK circuit.
AAS CONTNOL UNIT 22P CONNECTOR
7At0tl
1211192l22
PMR IYEL/RED} I JUMPERI WIRE
Wire side of female terminals
NO
NO
YES
NOTE: Reinstallthe fuse if it is OK.
NOTE: Short the PMF terminal to booyground for a moment, and recheck the fuse.lf the fuse is blown, check for a short to bodyground in the wire between the under-hoodABS luse/relaV box and pumD motor.
- With the ignition switch ON(ll), ABS indicator lighr doosnot go otf.- With tho SCS s€rvico conneetor conn€cted lsee page 19661,OTCa 51-53 aro indicated.
Check the MTR CHECK (7.5 A) fuse.
Repl.ce the fuse .nd recheck.
Replaco tho tuse and rocheck.
Rcphce th€ pump motor rol6y.
Check the pump motor powersource circuit:Turn the ignition switch ON (ll).
Ch€ck for a short to !'ows. in thopumP motor power 3ource ciacrrit:Remove th6 purnp motor relay,
Does the pump motor operate?
Bopair sho.t to powsr in the wir€botwoen the under-hood A8Stuse/.elay box and ABS pumpmotor.
Does the pump motor operate?
Check tor loGe ABS control unitconnoctors. lf nocessary, substi-tute a known-good ABS controlunit and roch€ck,
(To page 19-69)
19-68

tt
(From page 19-68)UNDER.HOOD ABSFUSE/RELAY 8()X
TERMINAL TERMINAL
PUMP MOTOR 2P CONNECTOR
MOTOR +8 lWHTl,$
rv) -
Y
Wire side ot female terminals
\lt
MOTOR +B {RED}MOTOR GND (BLK)
ABS CONTROL UNIT 22P CONNECTOR
(cont'dl
19-69
JUMPER WIRE
Wire side oI female terminals
Check the pump motor circuit:1. Remove the pump motor relay.2. Turn the ignition switch ON (ll).
3. Connect the pump motor relayconnector +8 and MOTOR terminals with a iumper wire tora momenr,
Ch€ck for an open in the pump
moior +B circuit:1. Turn the ignition switch OFF.2. Disconnect the pump motor2P connector,3. Turn the ignition switch ON (ll).
4. Connect the pump motor relayconnector +B and MOTOR ter-minals with a jumper wire.5. Measure the voltage betweenthe pump motor 2P connectorterminal No. l and bodyground.
Does the pump motor operate?
Repaia open in the wire botweentho under-hood ABS fuse/relaybox and pump motor.ls there battery voltage?
Check the pump motor opgra-tion:Connect the battery {+}terminal tothe pump motor 2P connector ter-minal No. 1. and the (-)terminalto
the terminal No. 2 for a moment.
ReDlaco lho modulator unit.(Feulty pump motor)Does the pump motor operate?
Chock for a short to body ground
in the PMR circuit:1. Turn the ignition switch OFF.2. Disconnect the ABS controlunit 22P connector.3. Check for continuity betweenterminal No. 19 and bodygrouno,
Repail opon in ths wirg botwgentho pump motor and bodv ground,
or poor ground (G,!09).
Ropair 3hort to body g?ound intha wire between the under-hood ABS fuse/rclay box andABS cortrol unit.
(To page 19-70)

Troubleshooting
ABS Pump Motor (cont'dl
(From page 19-69)
ABS CONTROL UNIT 22P CONNECTOR
Check tor an opon in the PCOMcircuit:1. Turn the ignition switch OFF.2. Reconnect the ABS controlunit 22P connector.3. Connect the SCS service con-nector,4. Turn the ignition switch ON (ll).
5. Measure the voltage betweenthe pump motor relay connector PCOI,I terminal andbody ground.
Repair opon in tha wiro bEtwoonth. und€r-hood ABS fu3./rclsybox and ABS control unit.ls there approx. 3 V?
Chock for rn op6n in tho PMR cir-cuit:Measure the voltage beNveen theABS control unit 22P connectorterminal No. 19 and body ground.
Ropair opon in tho wira b€twoontho undor-hood ABS fu.e/rel.ybox and ABS control unit.ls there approx. 3 V?
Chock for an opon in ths MCKcircuh:1. Turn the ignition switch OFF.2- Disconnect the SCS serviceconnector.3. Turn the ignition switch ON lll).4. Measure the voltage betweenthe ABS control unit 22P con-nector terminal No. 17 andbody ground while connect-ing the pump motor relayconnector +8 and MOTOR ter'minal with a jumper wire formoment.
Repeir op.n in th. wire batweentho undor-hood ABS fu.o/rol.Vbox rnd ABS control unh.
Ch6ck lor loose ABS contlol unitconnoctors. lf ngc63ary, sub3ti-tute d known-good ABS controlunit and recheck.
n--l
wire side oI temale terminals
19-70

tfMain Relay
Diagnostic Trouble Code {DTC} 54: Msin Relay Diagnosis
YES
NOTE: Reinstallthe fuse if it is OK.
ABS CONTROL UNIT 26P CONNECTOR
Wire side of female terminals
ABS CONTROL UNIT 22P CONNECTOR
B1{WHT/GRNI
\e
PCOMIGRN/WHT}scoM{BLK/WHTI
(cont'd)
19-71
Wire side of female terminals
- With the ignition switch ON
{ll), ABS indic.tor light doesnot go off.- With the SCS 3ervica connoc-
tor connected (s€e pag€ 19-561,
DTC 54 is indicated.
checkthe ABS +B (20 Alfuse.
Replace th6 fuso and rechock.
Ch€ck for an op€n in the 81, 82
circuit:Measure the voltage betweenbody ground and the ABS control
unit 26P connector terminal No. '14
and No. 15 individually.
Repair open in the wire betweonthe ABS control unit and under-hood ABS tuse/relav box.
Check for a short lo body ground
in the PMR circuit:1- Turn the ignition switch OFF.
2. Remove the pump motor relay.
3. Disconnect the ABS controlunit 22P connector.4. Check for continuity betweenterminal No. 19 and bodygrouno.
Repair short to body ground in
the wire between the undor-hood ABS fuse/relay box andABS control unit.
ls there continuity?
Check tor a short to body ground
in the PCOM, SCOM circuit:1. Disconnect the ABS controlunit 26P connector.2. Check for continuity betweenbody ground and the ABS con-trol unit 26P terminals No. 1
and No.2 individually.
. Bepai. short to body ground in
tho PCOM circuit wire betwoenthe ABS control unit and under-hood ABS fu3e/.olay box.. Repair 3hort to body ground inthe PCOM or SCOM circuit wirebetween the ABS control unitand moduletor unit.. Rcplace th6 modulator unit.(Short circuit insido tho unit)
ls there continuity?
{To page 19 72)lr

ABS Control Unit
Pulsers/Wheel
Sensors
Replacement
1. Remove the right side kick panel.
2. Disconnect the ABS control unit connecrors.
3. Remove the ABS control unit,
4. lnstall the ABS control unit in the reverse order of
removal,
CONNECTORS
19-76
Inspection
Check the front and rear pulser for chipped or dam-aged teeth.
Measure the air gap between the wheel sensor andpulser all the way around while rotating the pulser.
Slandard: 0.4 - 1.0 mm (0.02 - 0.04 in,
NOTE; lf the gap exceeds 1.0 mm (0.04 in), theprobability is a distorted suspension arm which
should be replaced.
Dbc brake typo
0.{ - 1.0 mm(0.02 - 0.04 in)
Drum brake typ6
1.

\:Outer Handle Replacement
NOTE: Raise the glass fully.
'1. Remove:
. Door panel
. Plastic cover (see page 2o-21
2. Pull out the retainer cliP.
6x1.omm Ii.e N.. tr.o rgf.-, I7.2 rbr.fi) ,2
C3.
CYLINDER PROTECTOR
LOCK CYLINDEB
RETAINERCLIP
Remove the bolts, then remove the cylinder protec-
tor, lock cylinder and outer handle.
>: Bolt locaiions,2
CYLINDER
LOCK CYLINDER
CYLINDER ROD
20-5
4. Pull out the outer handle. Pry the outer handle rod
out of its joint using diagonal cutters
NOTE:
a To ease reassembly, note location @ of the outer
handle rod on the joint before disconnecting it.
. Take care not to bend the outer handle rod.
o Use a shop towel to protect the opening in the
ooor.
OUTER HANDLEROD
DIAGONALCUTTERS
SHOPTOWEL
lnstallation is the reverse of the removal procedure
NOTE: Make sure the door locks and opens properly.
BUSHINGReplace.
\
,w.
5.
i4'