service check connector HONDA CR-V 1998 RD1-RD3 / 1.G Owner's Guide

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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Diagnostic Trouble Code (DTC)
Diagnostic Trouble Gode IDTCI Indication
NOTE: This operation can also be done with the Honda pGM Tester.
1. Connect the SCS service connector to the service check connector (2P) located on the passenger's side of the centerconsote.
2. Turn the ignition switch ON (ll).
NOTE; Do not press the brake pedal whenturningthe ignition switch.
3 Record the blinking frequency of the ABS indicator. The brinking frequency indicates the DTc.
4. Turn the ignition switch OFF. and remove the SCS service connector.NOTE: The Malfunction Indicator Lamp (MlL) will stay on after the engine is startsd if the SCS seryica connecror rsconnected.
5. Erase the DTC.
Conditions for DTC indication. The vehicle is stopped.. The SCS service connector is connected before the ignition switch is turned ON flt).. The brake pedal is released.. The SCS service connector remains connected during this procedure.
The DTC indication stops and the ABS control unit axecutos tha softwaro lunction if at least one of tho following condi-tions i3 satisfiod:
. The vehicle is not stoooed.. The ABS control unit receives the normal signal (which is for the ABS control unit) from a Honda pGM Tesrer.. The SCS service connector is disconnectod during this procedure.
NQTE: The illustration of gauge assembly shows the '97 - 98 models. The '99 - oo models are similar.
SEFVICE CHECKCONNESTOR I2P}
GAUGE ASSEMBLY
A8S II{DEATOR
u.s.A.
@
CANADA
@
19-38
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DTC Erasure
NOTE: This operation can also be done with the Honda PGM Tester.
1. Connect the SCS service connector to the service check connector (2P) located on the passenger's side of the center
console.
2. Press the brake oedal.
3. Turn the ignition switch ON (ll) while keeping the brake pedal pressed. The ABS indicator goes off after two seconds.
4. After the indicator goes off, release the brake pedal. The indicator comes on after four seconds.
5. After the indicator comes on, press the brake pedal again. The indicator goes off again after four seconds (the brake
oedal is still Dressed.)
6. After the indicator goes off, release the brake pedal again.
7. After four seconds. the indicator blinks twice for 0.3 second and the DTC is erased.
8. Confirm the DTC indication, and check that the DTC was erased.
NOTE: Always maintain these steps. lf you disconnect the SCS service connector and/or fail to operate the brake pedal
according to the indicator indication, the DTC will not be erased.
Conditions for DTC erasure
. The vehicle is stopped.
. The SCS service connector is connected before the ignition switch is turned ON (ll)
. The brake pedal is pressed before the ignition switch is turned ON (ll).
. The SCS service connector remains connected during this procedure.
The DTC erasure stops and the ABS control unit executes the software funqtion it at least one of the following conditions
b satisfied:
. The vehicle is not stopped.
. The SCS service connector is disconnected during this service.
. TheABScontrol unit receives the normal signal (which is for the ABS control unit) from a Honda PGM Tester.
. The brake pedal is not operated according to the indicator indication
. The DTC erasure is finished.
ON
ABS INDICATOR
OFF
DEPRESSED
BRAKE PEDAL
within 3 sec.0.3sec.
0.3sec.
within 3s€c. I within 3 s€c.
lonition switchdN (r)
RELEASED
19-39
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- With engine running, the ABSindicsior is ON.- With the SCS service connec-tor conn€cted (s€€ page 19381,no DTC is indicated.
Check the ABS {7.5 A) fuse in theundeFdash fuse/relay box, andreinstall the fuse if it is OK.
ReDlace lhe tuse and recheck.
Check the ABS +B (20 A) fuse inthe underhood ABS fuse/relaybox, and reinstall the fuse if it isoK.
Replace the fuse and rocheck.
Check for sn open in the lG2 cir-cuit:1. Turn the ignition switch ON {ll).2. Measure the voltage betweenthe ABS control unit 26P con-nector terminal No. 3 andbody ground.
Repair open in tho wire betweenthe ABS {7.5 A} fu3e .nd the ABScontrol unit,
Check for an open in the 81 and82 circuit:Measure the voltage betweenbody ground and terminals No. 14and No. 15 individually.
Ropair open in tho wi.e betweenrhe ABS +B {20 A) fuse and theABS control unit.is there battery voltage?
ABS Indicator Does Not Go Off (No DTGI
A8S CONTROL UNIT 26P CONNECTOR
IG2IBLK/BLU)
Wire side of female terminals
ABS CONTROL U N 26P CONf{ECTOR
{WHT/GRNI
(cont'd)
Wire side of female terminals
(To page 19 44)
19-43
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- With ths ignition switch ONllll, the ABS indicatol doesnot go ott.- Atte. driving, the ABS indica-lot comas on.- With the SCS service connec-tor connocted (s€€ page 19.381,DTGr 11 - 18 sre indbated.
Check the whcol sensor circuit:1. Disconnect the ABS controlunit 26P connector.2, Nleasure the resistancebetween the appropriate wheelsensor l0) and 1'l) circuit termi-nals {see table).
. Ropair op€n in th. {01 o. lll cir-cuit wire, oa short to the (01 cir-cuit wire in the lll circuit wirobetweon the ABS control unitand th. appropriate whasl sen-sot.. Roplace the rpp.opriatc whe6lSensor.
ls the resistance OK?
/Fronr:750 - r,050 o (20"C,68"F\
\Rear: 950 -'1,450 O (20"C, 68'F,
Chock lor a short 10 power in thewheel sensoa ciacuil:1. Reconnect the ABS control unit26P connector.2. Start the engine.3. Measure the voltage betlveenthe ABS control unit 26P con-nector appropriate wheel sen-sor (0) circuit terminal andbody ground (see table).
Ropair lhort to pow.r in the l0lot 11) circuit wiro between theABS control unit and the appro-priate whool sen6or.
ls there 4 V or more?
Check for a short to body groundin the whoal s.n3or cilcuit:1. Disconnect the ABS controlunit 26P connector.2. Check lor cont;nuity betweenthe ABS control unit 26P con-nector appropriate wheel sen-sor {0) circuit terminal andbody ground {se6 table).. Ropair short to body g.ound inth6 {01 or {1} circuit wirebotweon th6 ABS cont.ol unitand tho appropriato wheol son-aot.. Roplace tho appropriate wheelsensot.
DTC 11 - 18: Wheel Sensor
NOTE: The ABS indicator comes on only when the drive wheels are turning and signal disturbance is detected, Therefore, test-drive the car at a speed of 12 mph (20 km/h) or more after turning the ignition switch from OFF to ON l), and if the ABS indica-tor does not come on, the svstem is OK.
RLl (LT BLUI FRl IGRN/BLKI
Wire side of female terminals
NOTE: Judgement value for short
NO
NOTE:. Normalvoltage: Approx. 2 V.0 V: Replace the ABS control unit.. 4 V or more indicates a shon to power.
NO(cont'dl
ABS CONTNOL UNIT 26P CONNECTOR
RROIBLU/YEL}
RRT IGRN/YELI
FLO(BRN/WHTI
FLl IGFN/ORN}
DTCAppropriate Terminal
{0}srDE(1)S|DE
11, l2lRight-front)No.8: FnoNo.21: FR1
13, 14 (Left-front)No. 10rFLoNo. 23: FLl
15, 16 (RightreadNo.4: RRoNo.17: RR1
17, l8 (Lsft-rear)No.6: RLoNo.19: RL1
(To page 19-46)
19-45
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DTC 31 - 38: Solenoid
ABS CONTROL UNIT 22P CONNECTOR
Wire sade of female terminals
Wire side of female terminals
ABS CONTROL UNIT 26P CONNECTOR
FL.OUT IYEL/8LKI
DTCAppropraateConnectorTerminal
31: FR'lN22PNo. 1
32: FR OUT22PNo. 12
33: FL lN22PNo. 11
34: FL OUT22PNo.10
35:RR-lN26PNo.13
36: RR-OUT22PNo.21
37: RLIN26PNo.25
38: RL-OUT26PNo. 12
RL.OUT {YELI
FL.OUT IYEL/BLKI
DTCAppropriateTerminal
31: FR lNNo. 2i SCOM
32: FR-OUTNo. 2: SCOM
33: FLINNo.1:PCOM
34: FL-OUTNo. 1:PCOM
35:RRINNo. 1: PCON4
36: RR-OUTNo. 1: PCON4
37rRL-lNNo. 2: SCOM
3a: RL-OUTNo. 2: SCOM
RL.OUT {YELI
- With the ignition switch ON{lD, tho ABS indicator doesnot go off, or the ABS indic.-lor comes on whil6 ABS istunctioning.- With th€ SCS service connoc-tor connoctcd {sce page 1$381,DTCa 31 - 38 ars indicatsd.
Check for a 3hori to power in th€solenoid ci.cuit:1. Disconnect the ABS controluntr tlr ano zbr connectors_2. Start the engine.3. Measure the voltage betweenthe appropriate ABS controlunit connector solenoid circuitterminal and body ground (see
table).
R€pair short to power in theapprop.iato solenoid circuit wirebetwe€n the ABS control unitand the modulator unh.
ls there baRery voltage?
Chock for a short to body groundin the sol€noid circuit:Check for continuity between theappropriate solenoid circuit termi-naland body ground (see table).
. Ropair short to body ground inthe appropriato solenoid circuitwire betwoon the ABS controlunit and the modulator unit.. Replace the modulator unit.
ls there continuity?
Check the ABS control unit:1. Turn the ignition switch OFF.2. Connect the ABS control unit22P and 26P connectors.3. Connect the SCS service con-nector.4. Turn the ignition switch ON (ll).5, Measure the voltage betweenthe appropriate ABS controlunit 26P connector COM circuitterminal and body ground (seetable).
Check tor loose ABS control unitconnectors. ll nece$ary, substi-tut€ a known-good ABS controlunit and recheck.
ls there approx. 3 V7
PCOM
(To page l9-48){GRN/WHTI
19-47
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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
Dashboard Wire Harness
Connector ol
Terminal
Numb€r of
CavitiesLocationConngcts toNotes
c501
c501
c502
c503
c504
c505
c506
c507
c508
c509
c510
c511
c512
c514
c518
c519
c520
c521
c524
10
1
20
14
16
6
20
13
5
t6
14
10
to
20
16
2
24
2
1
5
Above under-dash fuse/relay box
Above under-dash fuse/relay box
Above under-dash fusehelay box
Above under-dash fuse/relay box
Behind dashboard lower panel
Above under-dash fuse/relay box
Above under-dash fuse/relay box
Left side of steering wheel
Left side of steering wheel
Under left side of dash
Behind gauges
Behind gauges
Behind gauges
Behind gauges
Behind gauges
Right side of gauges
Behind middle of dash
Behind middle of dash
Behind middle of dash
Under middle of dash
Under middle of dash
Behind middle of dash
Behind middle of dash
Behind middle of dash
Behind middle of dash
Behind middle of dash
Behind gauges
Upper middle of dash
Main wire harness (C416)
Main wire harness (C416)
Under-dash fuse/relay box 1C912)
Main wire harness (C415)
Hatch glass opener switch
Left side wire harness (C556)
Left side wire harness (C556)
Dash lights brightness cont.oller
Cruise main switch
Junction connector
Gauge assembly
Gauge assembly
Gauge assembly
Gauge assembly
Gauge assembly
Hazard warning switch
Audio unit
Heater control panel
Heater control panel
Data link connector
Service check connector
Front accessory socket connector
Ashtray light
Heater sub-harness (C733)
Heater sub-harness {C740}
Heater sub-harness (C740)
Gauge assembly
Clock
'97 - 98
models'99 - 00
models
Mir
A/r
'97 model'98 - 00
mooets
'98 - 00
models
G501Behind middle of dashBody ground, via dashboard wire har-
ness
23-24
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BLKG401
GroundWir€ ColorComponent or Circuits Grounded
ABS indicator circuit
ABS control unit
Ashtray light
A/T gear position indicator dimming circuit
Brake fluid level switch
Clock ('98 - 00 models)
Clutch inrerlock switch (M/T)
Clutch switch (Mff)
Cruise main switch
Cruise indicator circuit
Cruise control unit
Dash lights brightness controller
Data iink connector
Daytime running rights control unit (Canada)
Front accessary socket
Gauge and indicators
Heater control panel
lgnition key light control unit ('97 model)
lgnition key switch
Integrated control unit
Interlock control unit (Ay'T)
Parking pin switch {A,/T)
Power window relay
Rear accessary socket relay
Bear window defogger relay
Rear window wiper control unit ('97 model)
Service check connector
Spotlights
SRS indicator circuit
Turn signal/hazard relay
Windshield wiper motor
Windshield wiper/washer switch- plus everything grounded through G402
ABS control unit
Blower motor relay
Blower motor high relay
ELD unit (USA)
Power transistor- plus everything grounded through G401
BLKG402
{cont'd)
23-47
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