2000 HONDA CR-V Air Control

Pump Pressure Check With T/N 07406 -
Check the fluid pressure as follows to determine whether
the trouble is in the pump or gearbox.
1. Check the power steering tluid level (see page 17-
151, and pump belt tension (see page 17-14).
2. Disconnect the pump outlet hose from the pump
outlet with care so as not to spill the power steering
fluid on the frame and other parts, then install the
P/S joint adapter (pump) on the pump outlet.
6 x 1.0 mm BOLT(Part oftool)
FEED HOSE HfNNG
PUMP OUTLET HOSE
1'l N.m 11.1 kgf.m,8lbf ft)
P/S PRESSURE GAUGE07406 - 001000A
6 x 1.0 mm BOLT(Part ol tool)11 N.m(1.r kg{.m,8lbf'ft|
Connect the P/S joint adapter (hose) to the P/S pres-
sure gauge, then connect the outlet hose to the P/S
joint adapter (hose).
Install the P/S pressure gauge to the P/S joint
adapter (pumpl.
001000A
5. Open the pressure controlvalve fully.
PRESSURECONTROL VALVE
7.
10.
Start the engine and let it idle.
Turn the steering wheel from lock-to-lock several
times to warm the tluid to operating temperature.
Measure steady-state fluid pressure while the engine
is idling. It the pump is in good condition, the gauge
should read 1,500 kPa (15 koflcm',213 psi). lf it reads
high. check the outlet hose or valve body unit {see
General Troubleshooting),
Close the-pressure control valve gradually and read
the oressure.
CAUTION: Do not keep the pressurs control valve
closed more then 5 seconds or the pump could bo
damaged by overheating.
lmmediately open the pressure controlvalve fully.
lf the pump is in good condition, the gauge should
read at least 6,900 - 7;800 kPa (70 - 80 kgflcm',
1,000 - 1.140 psi), A low reading means pump out-
Dut is too low for {ull assist. Repair or replace the
oumo.
17-17
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Steering Wheel
Removal
SRS components are located in this area. Review the
SRS component locations, precautions, and procedures
in the SRS section (24) before performing repairs or ser-
vice.
1. Align the front wheels straight ahead. then remove
the driver's airbag assembly (see section 24) from
the steering wheel.
2. Disconnect the horn connector and cruise control
switch connectors.
CONTROLSWITCHES CONNECTOR
3. Loosen the steering wheel bolt, then install a steering
wheel puller on the steering wheel and remove it.
Note these items when removing the steering wheel:
. Do not tap on the steering wheel or the steering
column shaft when removing the steering wheel.
. lf you thread the puller bolts into the wheel hub
more than five threads, the bolts will hit the cable
reel and damage it. To prevent this, install a pair
of jam nuts five threads up on each puller bolt.
STEERING WHEEL BOLT39 N.m 14.0 kgt.m,29 lbtftl
STEERING WHEEL EOLT
Disassembly/Reassembly
EOSS COVER PLATE
_^M
STEERING WHEEL
WHEEL BODY COVER
17-18
@,
ACCESS PANEL
h"\
BODYCOVER CAP
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lnstallation
1. Before installing the steering wheel, make sure the
front wheels are aligned straight ahead, then center
the cable reel. Do this by first rotating the cable reel
clockwise until it stops. Then rotate it counterclock-
wise approximately two turns. The arrow mark on
the cable reel label should point straight up.
ARROW MARK
2. Install the steering wheel on to the steering column
shaft, making sure the steering wheel shaft engages
the cable reel and canceling sleeve. Do not tap on
the steering wheel or steering column shatt when
instailing the steering wheel
HOLE
Install the steering wheel bolt, and tighten it to 39
N.m (4.0 kgf.m, 29 lbf.ft).
Connect the horn connector and the cruise control
switch connectors,
Install the driver's airbag assembly, and confirm
proper system operation (see section 24).
CABLE REEL
17-19
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5. Submerge the valve in a container of power steer-
ing fluid or solvent, and blow in the hose. lf air bub-
bles leak through the valve at less than 98 kPa
(1.0 kgflcm', 14.2 psi), repair it as follows ('97 model).
For'98 - 00 models, the flow control valve cannot
be disassembled; replace the pump as an assembly
AIR PRESSURE
POWER STEENINGFLUID or SOLVENT
6.For'97 model only, hold the bottom end of the
valve with a open end wrench. Unscrew the seat in
the top end of the valve, and remove any shims, the
reliel check ball, relief valve and relief valve spring.
RELIEFALVE
RELIEF CHECK BALL
{w@r
7.
SEAT9 N.m(0.9 kgf.m, 6.5 lbfft)
RELIEF VALVESPRING
FLOW CONTBOL VALVE
Clean all the parts in solvent, dry them otf, then
reassemble and retest the valve.
The relief pressure is adjusted at the factory by
adding shims under the check ball seat lf you found
shims in your valve, be sure you reinstall as many
as you took out.
lf the flow control valve tests OK, reinstall it in the
pump. It the flow control valve still leaks air, replace
the pump as an assembly. The flow control valve is
not available separately.
8,
Hold this end witha open eno wrencn.
Ball Bearing:
'1. Inspect the ball bearing by rotating the outer race
slowly. lf any play or roughness is felt, replace the
ball bearing.
2. Replace the ball bearing using a press.
Removelnstall
Press
I
Press
I
lnstall with thered shaelded sidefacing down.
NOTEr SuPPort the inner race
with the tool securelY-
BALL EEARING
17-27
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ABS Control
The ABS control unit detects the wheel speed based on the wheel sensor signal it received, then it calculates the vehicle
speed based on the detected wheel speed. The control unit detects the vehicle speed during deceleration based on the
rate of deceleration.
The ABS control unit calculates the slip rate of each wheel, and it transmits the control signal to the modulator unit
solenoid valve when the slip rate is high
The pressure reduction control has three modes: pressure reducing, pressure retaining, and pressure intensi{ying modes.
Self-diagnosis Function
The ABS control unit is equipped with a main cPU and a sub cPU, that check each other for problems.
The CPUs check the circuit of the system.
When the CPUS detect failure, they shift to the "system down mode" or the "control inhibition mode".
The self-diagnosis can be classitied into these four categories:
O: Initial diagnosis
O: Except ABS control
O; During ABS control
@: During warning
On-board Diagnosis Function
The ABS system can be diagnosed with the Honda PGM Tester.
The ALB Checker cannot be used with this system. For air bleeding. and checking wheel sensor signals, use the Honda
PGIM Tester. See the Honda PGM Tester user's manuals for specific operating instructions.
(cont'd)
19-29
ABS CONTROL I-INIT
MODEABSINDICATOR LIGHTMAIN
RE LAY
SOLENOID
VALVERestan conditionDTC
SYSTEM
DOWNONNo
operatron
Drive
inhibitionOperation*rlgnition
switchOFF - oN (ll)Memory
CONTROL
INHIBITIONONNo
operaton
Drive
inhibitionOperationAutomaticlVemory
*1: Except CPU failure
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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.
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Troubleshooting
ABS lndicator Does Not Come On
The ABS indicator does notcome on when ignition switch isturnod ON lll).
check the METER {7.5 A} fuse inthe underCash fuse/relay box,and reinstaltthe fuse if it is OK.
Check for an open in the lcl ch-cuil:1. Disconnect the gauge assem-bly 5P connector.2. Turn the ignition switch ON (ll).
3. Measure the voltage betweenthe gauge assembly 5P con-nector terminal No. 5 andbody ground.
. Repair open in the wire betweenlhe METER {7.5 A) luse and thogauge assembly.. Reolece the under-dash fuse/relay box. (Opon circuit insidethe box.)
ls there battery voltage?
Check the ABS indicator bulb inthe gauge assembly.
Replace the ABS indicator bulb.
Check for a short to power in theWALP circuit:Measure the voltage between thegauge assembly 5P connectorterminal No. 1 and body ground.
Sepair short to power in the witeb€tween the gaug€ assemblyand the ABS control unil.ls there battery voltageT
Reolace the tuse and recheck.
(To page 19 42)
GAUGE ASSEMBLY 5P CONNECTOR
Wire side of female terminals
(cont'd)
19-41
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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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