1999 HONDA CR-V front wheels

Front Brake Pads
Inspection and Replacement
1.
Nsvgr u9e an air hose or dry brush to clean brake
assemblies.
Use an OSHA approved vacuum cleaner to avoid
broathing brake dust.
Loosen the front wheel nuts slightly, then raise the
vehicle, and make sure it is securely supported.
Remove the front wheels.
Remove the caliper bolt, and pivot the caliper up
out of the way. Check the hoses and pin boots for
damage and deterioration.
CALIPERBOLTCALIPER BODY
3. Remove the pads, pad shims, and pad retainers.
INNEB PAD SHIMSCheck for weakness.
#
IOUTER PAD SHIMCheck for weakness.
i)n.
4. Using vernier calipers, measure the thickness of
each brake pad lining. The measurement does not
include the pad backing plate thickness.
Brake Pad Thickness:
Standard: 10.5 - 11.5 mm {0.,11 - 0.45 in)
Servics Limit: 1.6 mm (0.06 in)
lf the brake pad thickness is less than the service
limit. replace the front pads and shims together as a
set.
Clean the caliper thoroughly; remove any rust, and
check for grooves and cracks.
Check the brake disc for damage and cracks.
Install the pad retainers.
7.
L
(cont'd)
19-9
EACKING PLATE
'.'..i
PAD RETAINERS
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Front Brake Disc
Disc Runout Inspection
l.Loosen the front wheel nuts slightly, then raise the
vehicle, and make sure it is securely supported.
Remove the front wheels.
Remove the brake pads {see page 19-9).
Inspect the disc surface for damage and cracks.
Clean the disc thoroughly, and remove all .ust.
Use wheel nuts and suitable plain washers to hold
the disc securely against the hub, then mount a dial
indicator as shown, and maasure the runout at
10 mm (0.4 in) from the outer edge of the disc.
Brake Di3c Runout:
Service Limit: 0.10 mm {0.00,0 in)
WHEEL NUT ANDPLAIN WASHER108 N.m {11 kg{ m, 80 lbf.ft)
lf the disc is beyond the service limit, refinish the
brake disc with an on-car brake lathe. The Kwik-
Lathe produced by Kwik-way Manufacturing Co.
and the "Front Brake Disc Lathe" offered by Snap-
on Tools Co. are approved for this operation.
M8x. Rofinish Limit: 21.0 mm l0.8il in)
NOTE: A new disc should bs refinished if its runout
is greater than 0.10 mm (0.004 in).
Disc Thickness and Parallelism
Inspection
1.Loosen the front wheel nuts slightly, then raise the
vehicle, and make sure it is securely supported.
Remove the front wheels.
Remove the brake pads (see page 19-9).
Using a micromater, measure disc thickness at eight
points, approximately 45'apan and 10 mm (0.4 in)
in from the outer edge of the disc. Replace the brake
disc if the smallest measurement is less than the
max. refinishing limit.
Brake Disc Thickness:
Standard:'97 - 98 modsls:
22.9 -23.1mm {0.90 - 0.91 inl'99 - 00 mod€ls:
23.6 - 23.8 mm {0.93 - 0.94 in}
Max. Refinishing Limit:21.0 mm (o.txl in)
Brake Disc Parallelism: 0.015 mm {0.0006 in} max.
NOTE: This is the maximum allowable difference
between the thickness measurements,
lf the disc is beyond the service limit for parallelism,
refinish the brake disc with an on-car brake lathe.
The Kwik-Lathe produced by Kwik-Way Manufac-
turing Co. and the "Front Brake Disc Lathe" offered
by Snap-on Tools Co. are approved for this opera-
tron.
NOTE: See section 18 for brake disc replacement.
19-1 1
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Rear Drum Brakes
Never use an air hose or dry brush to clgan brake assemblies,
Use an OSHA approved vacuum cleaner to avoid breathing brake dust.
Contaminated brake linings or drums reduce stopping ability.
Block the front wheels betore iacking up lhe rear ot the vehicle,
Block the front wheels, loosen the rear wheel nuts slightly, then raise the
poned. Remove the rear wheels.
2. Release the parking brake, and remove the rear brake drum.
I N.m {0.9rbr.ft)kgl.m,5.5
\\
\
196
@
Inspection
a
a
rl
a
1.vehicle, and make sure it is securely sup-
BACKING PLATEMarked left and right.
PARKING EBAKE I-EVERMarked left and right.
ADJUSTER BOLTCheck ratchet teethfor wear and damage.UPPER RETURN SPRINGCheck for weaknessand damage.
CLEVIS BCLEVIS A
64 N.m 16.5 kgl.m,47 lbt.ftl
\L;
SPRINGCheck for weaknessano oamage.
'l-'-' u-cllP
I Replace.
t/
6d/
BRAKE SHOEInspection, see page 19 17lf brake shoes are to bereused, mark and reassemblein same position.
WHEELInspect for leakage.Replacement, seepage 19-20
LOWER RETURNSPRINGCheck for weaknessano oamage.
RETAINER SPRINGInstall securely onlensron prn.
19-16
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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 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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Kickback'1. The motor operates when the ABS is functioning. and the fluid in the reservoir is forced out to the master cylinder,
causing kickback at the brake pedal.
2. The ABS control unit operates the solenoid valve when the brake pedal is released after the initial diagnosis You may
hear the solenoid valve operate at this time, but it is normal
Pumo Motol
1. The pump motor operates when the ABS is functioning
2. The ABS control unit checks the pump motor operation during acceleration. You may hear the motor operate at this
time, but it is normal.
Brake Fluid Replacement/Ail Bleeding
L Brake fluid replacement and air bleeding procedures are the same as for vehicles without ABS To ease bleeding, start
with the front wheels.
Troubleshooting
1. The troubleshooting flowchart procedures assume that the cause of the problem is still present and the ABS indicator
is still on. Following the flowchart when the ABS indicator does not come on can result in incorrect diagnosis.
2. Ouestion the customer about the conditions when the problem occurred, and try to reproduce the same conditions
for troubleshooting.
Self-diagnosis is made at various times such as the initial diagnosis, except ABS control, during ABS control, during
acceleration, during the specified vehicle speed, etc. Therefore, the symptom canngt be checked unless the check
conditions match with the problem conditjons
3. When the ABS jndicator does not come on during the test-drive. but troubleshooting is performed based on the DTC,
check lor loose connectors, poor contact of the terminals, etc., before you start troubleshooting.
4. After troubleshooting, erase the DTC and test-drive the vehicle. Be sure the ABS indicator does not come on.
5. The connector illustratjons show the female terminals with a single outline and the male terminals with a double out-
l ne.
ABS Function Test
To simulate ABS operation and activate the solenoid valves and pump, use the Honda PGM Tester.
Connect the PGM Tester to the 16P Data Link Connector (DLC). When the System Select menu is displayed, select the ABS
Test Mode menu, and follow the tester's prompts.
19-37
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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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