rear control HONDA CR-V 1999 RD1-RD3 / 1.G User Guide

Real-time 4WD-Dual Pump System
Troubleshooting (Automatic Transmission/Manual Transmission)
Whon d6c6l6rating in a torward gear {2WD mode}
1. Block the front wheels, raise the left rear wheel. and
support it with a safety stand as shown.
Hold the tire and turn it counterclockwise continu-
ouslv for more than one rotation.
lf the rotation of the wheel does not gradually
feel heavy while rotating, the 2WD system when
decelerating in a forward gear is normal.
lf the rotation of the wheel gradually feels heavy,
there is a problem in the system. Check the dif-
ferential fluid, lf the fluid is normal, reDlace the
toroue control differential case kit.
WHEEL CHOCKS
15-12
When decelerating in reverse gear (4WD mod€)
1. Block the front wheels. raise the left rear wheel, and
suppo( it with a safety stand as shown.
Hold the tire and turn it clockwise continuouslv for
more than one rotation.
lf the rotation of the wheel gradually feels heaw.
the 4WD system when decelerating in reverse gear
is normal,
lf the rotation of the wheel does not gradually feel
heavy, there is a problem in the system. Check
the differential fluid. lf the fluid is normal.
reolace the torque control differential case kit,
WHEEL CHOCKS
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Oil SealsRear Differential Assembly
Replacement (cont'd)
3. Remove the oil seal from the toroue control differ-
ential case.
Install the oil seal squarely using the special tool.careful not to damage the lip of the oil seal.
15-20
BREATHER TUBE
DRAIT{ PLUG
Disassembly
1. Remove the breather tube, the drain plug and the oilfiller plug.
OIL FILI.IR PLUG
Raise the locknut tab from the groove of the clutchguide, making sure that the tab completelv clearsthe groove to prevent damaging the clutch guide.
L(rcKNUT, 24 mmReplace.
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Rear Differential Assembly
Reassembly (cont'dl
7. Install the clutch hub/plates/discs, then align the pro-
jection of the plates with the discs.
M, 30 mm
CLUTCH GUIDE
sHl
,/
.A-\,/r\-7
8.
9.
CLUTCH HUA/PLATES/Dtscs
Installthe clutch guide and the 30 mm shim.
Apply liquid gasket to the sealing surface of the
torque control differential case, and note these
rlems:
. Use liquid gasket (P/N 08718 - 0001).
. Remove any dirt or fluid from the sealing sur-
face.
. lf 20 minutes have passed after applying liquid
gasket, reapply it before you assemble the hous-
ings. Allow it to cure at least 30 minutes after
assembly before filling differential with fluid.
TOBOUE CONTROLDIFFERENNAL
--- Apply liquid gaskot
15-24
6x1.0mm12 N.m 11.2 tgf m,8.7lbt.ftl
10. lnstall the dowel pins and toroue control differential
case.
TOROUE CONTNOL
11. Install the companion flange, O-ring, back-up ring,
disc spring washer, and the locknut.
NOTE: Apply CW fluid to the O-ring.
,24mm
DISC SPRING WASHER,2a mm
lnstall in this direction.
@+-_alcr-upnwc
COMPANION FLAI{GE
/r-
K@#/
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Master Cylinder/Brake Booster
Removal/lnstallation
1, Disconnect the brake fluid level switch connectors.
2. Remove the reservoir cap from the master cylinder.
3. Remove the brake fluid from the master cvlinder
reservoir with a syringe.
4. Disconnect the brake lines from the master cylinder.
To prevent spills, cover the line joints with rags or
shop towels.
5. Remove the master cylinder mounting nuts and
wasners.
6. Remove the master cylinder from the brake booster.
CAUTION: Be careful not to bend or damage the
brake lines when removing the master cylinder.
Do not spill brake fluid on the vehicle; it may dam.
age the paint; it brake fluid does cont.ct the paint,
wash it oft immediately with water.
7. Disconnect the vacuum hose from the brake booster.
8. Remove the cotter pin and clevis pin from the clevis.
Do not disconnect the clevis by removing it from
the operating rod of the brake booster. lf the clevis
is loosened, adjust the pushrod length before
installing the brake booster (see page 19-15).
To Front Caliper (Without ABS)
\\
15 N.m {1.5 kgtm, vAcuuM HosE
r r rbf.ft) |
/ | BRAKE FLUTD LEvEL
/l /
swrrcHcoNNEcroRs
/ I I I COTTER PIN
I I / neotace
l,/-- ro Rear wheet cylinders / | I
h ./-''' /. I I IYli //*s (.S
I /r:
9. Remove the four booster mounting nuts.'10. Pull the brake booster forward until the clevis is
clear of the bulkhead.
11. Remove the brake booster from the enqine com-
panment.
12. Install the brake booster and master cylinder in the
reverse order of removal, and note these items:
. When connecting the brake lines, make sure that
there is no interference between the brake lines
and other parts.
. Be careful not to bend or damage the brake lines
when installing the master cylinder.
. lf replacing the master cylinder or brake booster,
check and adjust the pushrod clearance before
installing the master cylinder (see page 19-14).
Fill the master cylinder reservoir, and bleed the
brake system (see page 19-7).
After installation, check the brake pedal height and
brake pedal free play (see page 19-5), and adjust if
necessary.
13 N.m 11.3 kg{.m,I rbf.ft)
13.
14.
To Master Cylinder(Without ABS)To Modulator Unit(with ABs)@-\
\
^ To Front Caliper
9i\.
-#qCLEVIS PIN
):-,/
PROPORTIONING CONTROL VALVE
MASTER CYLINDER
15 N.m (1.5 kgf.m, 11 lbl.ftl
BRAXE BOOSTER
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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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Anti-lock Brake System (ABS)
Features/Construction
When the brake pedal is pressed during driving, the wheels can lock before the vehicle comes to a stop. In such an event,
the maneuverability of the vehicle is reduced if the front wheels are locked, and the stability of the vehicle is reduced if the
rear wheels are locked, creating an extremely unstable condition. The ABS precisely controls the slip rate of the wheels to
ensure maximum grip force from the tires, and it thereby ensures maneuverbility and stability of the vehicle.
The ABS calculates the slip rate of the wheels based on the vehicle speed and the wheel speed, then it controls the brake
fluid pressure to attain the target slip rate.
Grip Force of Tire and Road Surlace
COEFFICIENT OFFRICTION
TARGET SLIP RATE
RADIALOIRECTIONOF THEROTATIONALDIRECTION
SLIP RATE
19-24
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ABS CONTROL I.]NII {NBK)
Gil
SEFVCE CHEC(STOP
-[rf$-n*'"[m;] t
ra
G2t
rlr*r"t_._*hr;c, ------ r"-!cc
-
Pf:-tL
t=
#
J*tt-
-
55
V-
,ln l'? g,l,BFN+BsN-,| Br(--o-.8:
Y G101cr02
WIT/BLIJ
,r-,,..J A ^ l0lTA L M|; i trr cor'hrEcroF 'r6P)
8LK
4c1013,402
tG2,
Lffi-
_-- -.^ PMR,
t!94
.,._ PCOM,
9
GRN/8I(x
,,-:gLTpliirn
Ilcrom.:C, IRE^R4iq!AGFNmL---l
BLr( -l
eli -.1
BtK-L,-ry
ABs coNTRoL uNrr 26p coNNEcroR 9E-FY!!(o;fib;;; -- coNNF
e -rlr z :ltl,/ a ,18 e tol/ 12li3l I'
| | 4 1 5 16)17 V I1s V l2' VIIU)4 p91ffi
ABS coNTRoL uNrr 22p coNNEcroR QAIA.Li-;;i,;;) -- coNNE
T
t,*---;T- =l------5o ril mtTlI r, / , | #l,'2 -14 i7 19 -)1 .221 | | ,z
Wire side of lemale terminals
)E CHECK:CTOR (2P)
,f
'97
FRO
TermmateINKcroR (16P)
?'--"r""""-./ 6 ,/ 8\
F{ c7
HEEL SENSOR CONNECTOR
model '98-99 models
NT/ REAR FRONTI RIG-HT-REAR
iTtl /J r lz !\
nal side ol Terminal side olterminals male terminals
LEFT.REAR/nf'\1./ 1F
r .4-;1V L:JTerminal side ollemale terminals
19-33
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ABS Control Unit Terminal Arrangement
ABS CONTROL UNIT 26P CONNECTOR
Wire side of female terminals
TeiminalnumbelWiiecolorTerminal3ignTeiminalnamglDescription
Voltrge
tdminalsCondhions(lgnition Switch ON llll)Output voltago
1GRNn/VHTPCOM(Primary
common)
Power source for the solenoidvalve and pump motor.1-GNDON6
ONOV
OFFAC:3-6V
2BLI(WHTSCOM(Secondary
common)
Power source for the solenoid2-GNDOFF
lConnect the SCS seNice] connector IApprox.3 V
BLVBLU(lgnition 2)Detects ignition switch 2signal. (System activate signal)3-GNDBattery Voltage
4BLUA/ELRRO(Rear-right 0)Detocts right-rear wheelsensor srgnat.When the wheel isturned at 1 turn/second.
53 mV or above ondigitaltester (ACrange) {Beference)150 mvtrp or aboveon oscilloscope
GRYRLO(Rear-left 0)Detects left-rear wheel sensorsrgnat.6-19
8GRNFRO(Fronr-right 0)Detects right-front wheelsensor signal.8-21StopsApprox.2.5 VSTOP
{Stop)Detects bfake switch signal.(Prevents unnecessary ABS operation)9-GNDBrake pedal pressed.Battery Voltage
Brake Dedal released.OV
10BRN^/VHTFLO(Front-left 0)
Detects left-front wheel sensorsrgnal.
10-23
When the wheel isturned at 1 turn/second.
53 mV or above ondigitaltester lACrange) (Reference)
150 mvpp or aboveon oscilloscope
StopsADprox. 2.5 V
YELRL-oUT(Rearleft outlet)
Drives left-rear outlet solenoid12.GNDONONOV
OFFAC:3-6V
13RED^/vHTRR.IN(Rear-right
inlet)
Drives right-rear inlet solenoid13.GNDOFF
lConnect the SCS service\ connector IApprox. 3 V
14WHT/GRNB1(Baftery 1)Power source for the solenoidvalve and pump motor.14.GND
Every timeBattery Voltage82(Battery 2)Power source for the solenoidvalve and pump motor.15-GND
16BLKGND2(Ground 2)Ground for the ABS controlunit.16-GNDBelow 0.3 V
't7GRN/YELRR1(Rear-right 1)Detects right-rear wheelsensor signal.'t7 -4
When the wheel is turnedat l turn/second,
53 mV or aboveon digitaltester(AC range)(Reference) 150mVp-p or aboveon oscilloscope
19LT BLURL1(Rearieft 1)Detects left-rear wheel sensorsignal.19-6
GRN/BLKFR1(Front-right 1)Detects right-front wheelsensor srgnat.21-8
23GBN/ORNFL1{Front-left 1}Detects left-front wheel sensorsagnal.23-10StopsApprox. 2.5 V
REDRLI N(Rear-left inlet)
Drives left-rear inlet solenoid
25,GND
ON
=
-9ONOV
AC:3-6V
OFF
/Connect the SCS service] conneclor IApprox. 3 V
26BLKGND3(Gtound 3)Ground tor the ABS controluntI.26-GNDBelow 0.3 V
19-34
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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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- 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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