Pump motor relay HONDA CR-V 1999 RD1-RD3 / 1.G Workshop Manual

Anti-lock Brake System (ABSI,'97 - 00 Models
Special Tools ............. 19-26
Component Locations ......................... 19-27
Anti-lock Brake System (ABS)
Features/Construction ............. ......, 19-2A
Circuit Diagram ......... 19-32
ABS Control Unit Terminal
Arrangement ......... 19-34
Troubleshooting Precautions ............. 19-36
Diagnostic Trouble Gode (DTC)
Diagnostic Trouble Code (DTC)
Indication (SCS Model ................ 19-38
DTG Erasure (MES Mode) ............... 19-39
Troubleshooting lndex .................... 19-40
Troubleshooting
ABS Indicator Light Does Not
Come On ............ 19-41
ABS Indicator Light Does Not
Go Off (No DTC) ........................... 19-43
DTC 1r - 18:
Wheel Sensor .... 19-45
DTC 31 - 38:
Solenoid ............. 19-47
DTC 51 - 53:
ABS Pump Motor ......................... 19-49
DTC 54:
Main Relay ......... 19-52
DTC 61:
lgnition Voltage ........................... 19-54
DTC 81:
Central Processing Unit (CPU) .... 19-55
Modulator Unit
Removal/lnstallation ....................... 19-56
ABS Control Unit
Replacement ..,...... 19-57
Pulsers/Wheel Sensors
Inspection .............. 19-57
Wheel Sensor Replacement ............ 19-58
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Component Locations
NOTE: The illustrations show the '97 - 98 models. The '99 - 00 models are similar.
ABS CONTROL UNITRIGHT-REAR WHEEL SENSOR
UNDER.HOOD ABSFUSE/RELAY BOX
RIGHT.FRONT WHEELSENSOR CONNECTOR
RIGHT-FRONTWHEEL SENSORRIGHT-REAB WHEELSENSOR CONNECTOR
MODULATOR UNIT
LEFT.FRONT WHEEL SENSOB
UNDER.DASH FUSE,/RELAY 8OX
UNDER.HOOO FUSE/RELAY AOX
IGl I(, AI FUSE
ABS +B 120 Al FUSEPUMP MOTOR ('II AI FUSE
HOBN/STOP I15 AI FUSE
UNDER.HOOD ABS FUSE/RELAY BOX
LEFT.FRONT WHEELSENSOE CONNECTOR
GAUGE ASSEMBLY
ABS INDICATOR
UNDER-DASH FUSE/NELAY BOX
METER {7.5 AI FUSE
MOTOR RELAY
19-27
SERVICE CHECK CONNECTOR {2PI
D!
trtrtr
[r D!
ABS {7.5 AI FUSEMTR CHECK 17.5 AI FUSE
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ABS CONTROL UNIT 22P CONNECIOR
Wire side ol lemale terminals
TerminalnumDerWirecolorTerminal 3i9nTerminal nameDescription
Voltage
Conditions(lgnition Switch ON (ll)lOutput voltagetominals
1RED/BLUFR-IN(Front-right
inlet)
Drives right-front inletsolenoid valve.
1-GND.9otur
ONIONOV
OFFAC:3-6V
OFF
lconnect the SCS servicel
connedor lApprox.3 V
BRN(Service checksignal)
Detects service check signal(Diagnostic trouble codeindication)4.GND
SCS service connectorconnected.OV
SCS service connectordisconnected.Approx. S V
7BLU/RED(Warning
ramp)
Drives ABS indicator {The indi-
cator goes off when ABS con-
trol unit outputs battery volt-age).
7.GND
lndicator ONApprox. 2 V
lndicator OFFBattery Voltage
10YEUBLKFL-OUT(Frontieft
outlet)
Drives left-front outletsolenoid valve.1O-GNDON
=
I
ONOV
OFFAC:3-6V
l'lRED/BLKFL-IN(Front-left inlet)
Drives left-front inlet solenoid11-GNDOFF
lconnect the SCS servicq connector lApprox.3 V
YEUBLUFR-OUT(Front-right
outlet)
Drives right-front outletsolenoid valve.12-GND
14LT BLU(Data linkconnectod
Communicates with HondaPGM Tester.14-GNDApprox. 5 V
17BRN/YELMCK(Motor check)
Detects PumP motor drivesignal.17-GNDPumpmotorrelay
ONBattery Vollage
OFFOV
19YEUREDPMR(Pump motorreray,
Drives pump motor relay.
19.GNDcl)
ON6IONOV
OFFAC:3-6V
OFFponnecl the SCS service]
connector IApprox.3 V
BLURR-OUT(Rear-right
outlet)
Drives right-rear outletsolenoid valve.
21.GND'a)
ONPumpmororrcray
ONOV
OFFAC:3 6V
OFF
lconnect the SCS service] connector lApprox.3 V
BLKGND2(Ground 2)Ground for the ABS controlunit.22.GNDBelow 0.3 V
19-35
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DTC 51 - 53: ABS Pump Motor
NOTE: Short the PMR terminal to bodyground for a moment, and rochock the tuse.lf the fuse is blown, check lor a shon to bodyground in the MCK circuit.
NOTE: Short the PMR terminal to bodyground for a moment, and recheck the fuse,lf the tuse is blown, check tor a short to bodyground in the wire between the under hoodABS fuse/relay box 6nd the pump motor.
ABS CONTROL UNIT 22P CONNECTOR
Wire side of female terminals
(cont'di
- Wilh the ignition switch ON{ll), the ABS indicator doesnot go ott.- With the SCS seruico connec-tor connoctod {sce page 19381,DTCa 51 - 53 .re indicated.
check the MTR cHEcK (7.5 Ailuse in the under-hood ABStuse/relay box, and reinstall theluse if it is OK.
Rsplace the fuse and rech6ck.
check the PUMP MOTOR (40 A)fuse in the under-hood ABS fuse/relay box, and reinstall the fuse ifit is oK.
Roolace lhe tusg and rocheck.
Feplace the pump motor r6ley.
Check the pump motor powelsourc€ circuit:Turn the ignition switch ON (ll).
Ch6ck fo. a short to oowd in th6pump motor power sourca circuit:Remove the pump motor relay.Does the pump motor operate?
Repair rhort to power in the wirebclweon the under-hood ABSfuse/.6lay box and ihe ABSpump motor.
Does the pump motor operateT
Ch6ck tor loos6 ABS control unitconnectors. lf necotsary, 3ubsti-tute . known-good ABS controlunit and rocheck.
(To page 19 50)
19-49
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Troubleshooting
DTC 51 - 53: ABS Pump Motor (cont'dl
(From page 19 49)
UND€R-HOOO ABSFUSE/REI-AY BOX
MOTOR +B IREDIMOTOR GND IBLKI
TERMINAL TERMINAL
PUMP MOTOR CONNECTOB
Fr MOTOR +B {WHTI12 lF-(v)vI
Terminal side of female terminals
Terminalside ofmaleterminals
ABS CONTROL UNIT 22P CONNECTOR
JUMPER WIRE
Wire side of female terminals
Chock the pump motor ci.cuit:1. Remove the pump motor relay.2. Turn the ignition switch ON {ll).3. Connect the pump motor relayconnector +B and MOTOR ter-minals with a jumpor wire fora moment,
Check for an open in the pump
motor +B circuit:1. Turn the ignition switch OFF.2. Disconnect the pump motor
3. Turn the ignition switch ON (ll).
4. Connect the pump motor relayconnector +B and MOTOR terminals with a iumper wire.5. Measure the voltage beaveenthe pump motor connectorterminal No. l and bodygrou nd.
Does the pump motor operate?
Bepair opon in the wire botweenthe under-hood ABS fuse/relavbor and the pump motor.ls there battery voltage?
Check the pump motor opera-tion:Connect the battery (+)terminal tothe pump motor connector termi-nal No. 1, and the (-) terminal tothe terminal No. 2 for a moment.
Reolace the modulator unit.
lFaulty pump moto.lDoes the pump motor operate?
Ch6ck for a short to body groundin the PMR circuit:1. Turn the ignition switch OFF.2. Disconnect the ABS controlunit 22P connector.3. Check tor continuity betweenterminal No. 19 and bodyground.
Repair open in the wire bstweenthe pump motor and body ground,
or poo. ground {G3511.
Repair short to body ground inthe wir6 botween the under-hood ABS tuse/rclay box and th€ABS contlol unit.
{To page 19-51)
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(From page 19-50)
Chcck for .n opsn 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 con-nector PCOM terminal andbody ground.
Repair opon in the wire betwoenthe under-hood ABS fuse/relaybox and tho ABS conlrol unh.ls there approx.3 V?
Check for an open in tho PMR cir-cuh:Measure the voltage between theABS control unit 22P connectorterminal No. 19 and body ground.
Ropair open in tho wir6 botwagntho undcr-hood ABS fuse/rolaybox .nd the ABS control unit.ls there approx. 3 V?
Ch.ck tor an opon in the MCKci.cuit:1. Turn the ignition switch OFF.2. Disconnect the SCS serviceconnector.3. Turn the ignition switch ON (ll).
4. Measure the voltage betweenthe ABS control unit 22P connector terminal No. 17 andbody ground while connect-ing the pump motor relayconnector +B and MOTOR ter-minal with a jumper wire tormoment,
Repair open in the wiro bdtweenthe under-hood ABS fus6/telaybox .nd the ABS control unit.ls there battery voltage?
Chock for loose ABS control unitconnectoas, It necsssary, substi-tule a known-good ABS controlunit and aocheck.
tr) l--l
r"r
ABS CONTROL UNIT 22P CO NECTOR
Wire side of female terminals
1t011
MCK IBRN,/YEL}
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Troubleshooting
DTG 54: Main Relay
IWHT/GRNI
AAS CONTROL UNIT 26P CONNECTON
Wire side of female terminals
ABS COf{TROL UN]T 22P CONNECTOR
PCOMIGRN/WHTIscoM{BLK/WHTI
Wire side of female terminals
- With the ignition switch ON(lll, the ABS indicator doesnot go off.- With the SCS service connec-tor connected {see page 19-381,DTC 54 is indicatod.
Check the ABS +B 120 A) fuse inthe under-hood ABS luse/relaybox, and reinstall the fuse if it isoK.
FeDlace the tu3e and recheck.
Ch€ck tor an open in the 81, 82circuit:Measure the voltage betweenbody ground and the ABS controlunit 26P connector terminal No. 14and No. 15 individually.
Repair open in the wiro bstweonth6 ABS conirol unit and theunder-hood ABS fuse/rolay box,
ls there battery voltage?
Check for a short to body groundin the PMR circuit:L Turn the ignition switch OFF.2. Remove the pump motor relay.3. Disconnect the ABS controlunit 22P connector.4. Check lor continuity betweenterminal No. 19 and bodygrouno.
Repair short to body ground inthe wire betweon the under-hood ABS lGe/r.lay box and theABS control unit.
Check for a short to body groundin the PCOM, SCOM cilcuit:1. Disconnect the ABS controlunit 26P connector.2. Check tor continuity betweenbody ground and the ABS con-trol unit 26P terminals No- 1and No.2 individually.
. R€pair short to body ground inth€ P1COM circuit wire betweenthe ABS control unit and theund6r-hood ABS tuse/r6layoox.. R6p.ir short to body ground inthe PCOM or SCOM circuit wirebetweon th6 ABS control unitand lhe mod!lator unit.. R.Dlece tho modulrtor unit.(Short circuit inside the unitl
ls there continuity?
(To page 19-53)
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Connector ldentification and Wire Harness Routing
Connoctor or
Terminal
Number of
CavitiesLocationConnects toNotes
T1
r2
Right side of engine compartment
Right side of engine compartment
Under-hood fuse/relay box
Starter motor
oBatteryBattery positive terminal
Starter Cables
Battery Ground Cable
Connoctor or
Terminal
Number of
CavitiesLocationConneqts loNotes
GIRight front shock towerBody ground, via battery ground
cable
BatteryBattery negative terminal
Engine Ground Cable
Connector or
Terminal
Numb6r ol
CavitiesLocationConnects toNotes
T3Left side of enginePower steering pump bracket
Left side of engine compartmentBody ground. via engine ground
caote
Transmission Ground Cable
Connsstor o.
Terminal
Number of
CavitiesLocationConnects toNotes
T4Right side of engine compartmentTransmission
Right side of front frameBody ground, via transmissionground cable
Under-hood ABS Fuse/Relay Box Wire Harnsss
Conn6stor or
Terminal
Number of
CavitiesLocationConnocts toNotos
tcRight side of engine compartmentUnder-hood ABS tuse/relav box
@Battery88ttery positive terminal
23-12
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Gonnector ldentification and WireHarness Routing
Main Wire Harness lEngine compartmont left and right branches)
Connectot ol
Terminal
Number ot
CavitiesLocationConneqts toNot€s
c301
c303
c304
c305
c306
c307
c308
c309
c352
c354
c356
c357
c358
c359
c360
LJO I
5
2
10
'14
1
1
t1
3
10
8
10
2
Left side of engine compartment
Left side of engine compartment
Left side of engine compartment
Left side of engine companment
Left side of engine compartment
Left side of engine compartment
Left side of engine compartment
Left side of engine compartment
Left side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Windshield wiper motor
Daytime running lights resistor
Test techometer connector
Engine wire harness (C10])
Engine wire harness (C102): '97 - 98models
Left front ABS wheel sensor
Engine compartment wire harness (C201)
Brake fluid level switch {-)Brake fluid level switch (+)
Under-hood fuse/relay box (C908)
Under-hood fuse/relay box (C906)
Under-hood fuse/relay box (C905)
Under-hood fuse/relay box (C907)
ABS modulator unit
ABS pump motor
Engine compartment wire harness (C218)
Engine compartment wire harness (C218)
Right front ABS wheel sensor
Under-hood ABS fuse/retay box (C931)
Under-hood ABS fuse/relay box (C9321
Evaporative emission (EVAP) controcanister vent shut valve
Canada
ABS
USA
ABS
ABS'97 - 98
models'99 - 00
mooets
ABS
ABS
ABS'98 - 00
mooets
G35lRight side of engine compartmentBody ground, via main wire harnessABS
23-18
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Power Distribution
Fuse-to-Gomponent(sl Index (numerical sequence)
Under-hood Fuse/Rolay Box:
41
43
44
46
47
48
49
50
52
Capacity
'100 A
40A
7.5 A
15 A
40A
7.5 A
30A
204
204
15 A
10A
40A
40A
204
20A
Capacity
40A
204
7.5 A
wiro ColorFuseCircuit(s) Prot€cted
A
lgnition switch (BAT)
lntegrated control unit
Ceiling lights
Spotlights
PGM-Fl main relay
Not used
No. 7, 8, 10, 11 fuse in the under-dash fuse/relay box
Audio unit
Clock {'98 - 00 models)
Data link connector ('98 - 00 models)
ECM (VBU) {'98 - 00 models: M/T)
Heater control panel
PCM (VBU) (A./T)
Combination light switch (via under-dash fuse/relay box)
No. 20, 33 fuse in the under-dash fuss/relay box
Not used
Rear window defogger (via relay)
Door lock control unit
Hatch glass opener solenoid
Keyless door lock control unit ('98 - 00 models)
Horn relay
Horns (via relay)
via brake switch:
ABS control unit
Brake lights
Cruise control unit
ECM ('98 - 00 models: M/T)
High mount brake iight
PCM (4./T)
Trailer lighting connector
Turn signal/hazard relay (via switch)
Option connector (+B)
No. 6 fuse in the under-dash fuse/relay box
Blower motor (via relay)
Condenser fan motor (via relay)
Ay'C compressor clutch (via relay)
Radiator fan motor (via relay)
Wire Color Circuitls) Protoct
53
54
50
WHT/BLK
WHT/RED
WHT/BLK
WHT/BLU
WHT/BLU
WHT
WHT/GRN
WHT/GRN
WHT/GRN
WHT/BLK
WHT/RED
BLU/WHT
WHT
RED
BLK/RED
Under-hood ABS Fuss/nehy Box:
Fusg
61WHT
WHT/GRN
BRN/YEL
ABS pump motor {via relay}
ABS control unit
ABS control unit
{cont'd)
23-43
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