Valves HONDA CR-V 2000 RD1-RD3 / 1.G Owner's Manual
[x] Cancel search | Manufacturer: HONDA, Model Year: 2000, Model line: CR-V, Model: HONDA CR-V 2000 RD1-RD3 / 1.GPages: 1395, PDF Size: 35.62 MB
Page 553 of 1395
E Position
Fluid flow through the torque converter circuit is the same as in N position. Line pressure (1) changes to line pressure (3)
and flows to the 1-2 shift valve. Line pressure (3) changes to line pressure (3') at the 1-2 shift valve and flows to the servo
vaive. The servo valve is moved to the right side (Reverse range position) and uncovers the port to allow line pressure (3")
to the manual valve. Line pressure (3') from the 1-2 shift valve flows through the servo valve to the manual valve and
changes to 4th clutch pressure (40). The 4th clutch pressure (40) is applied to the 4th clutch, and the 4th clutch is engaged.
R€verse Inhibitor Control
When the @ position is selected while the vehicle is moving forward at speeds over 6 mph (10 km/h), the PCM outputs the
1st speed signal to shift control solenoid valves A and B; shift control solenoid valve A is turned OFF, shift control solenoid
valve B is turned ON. The 1-2 shift valve is moved to the right side and covers the port to stop line pressure (3') to the
servo valve. Line pressure {3') is not applied to the servo valve, and 4th clutch pressure (40} is not applied to the 4th
clutch, as a result, power is not transmitted to the reverse direction.
NOTE:
. When used, "lelt" ot " right" indicates direction on the hydraulic circuit.
. The hvdraulic circuit shows the '97 - 98 models (7 positions); the '99 - 00 models (6 positions) is similar'
(cont'd)
14-37
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Page 555 of 1395
Lock-up System
TOROUE CONVERTER
In E position ('97 - 98 models) and in E position ('99 -
OO models) (3rd and 4th), and E position ('97 - 98 mod-
els) and in E position with Over-Drive (O/D) is OFF (by
pressing the O/D switch) ('99 - 00 models) (3rd), pressur-
ized fluid is drained from the back of the torque convert-
er through a fluid passage, causing the lock-up piston to
be held against the torque converter cover, As this takes
Dlace, the mainshaft rotates at the same speed as th8
engine crankshaft. Together with the hydraulic control,
the PCM optimizes the timing of the lock-up system.
Under certain condltions. the lock-up clutch is appli€d
during deceleration, in 3rd and 4th gear.
The lock-up system controls the range of lock-up sccord-
ing to lock-up control solenoid valves A and B, and ths
linear solenoid. When lock-up control solenoid valves A
and B activate. modulator pressure changes. Lock-up
control solenoid valves A and B are mounted on the out-
side of the torque converter housing, and the linear
solenoid is mounted on the transmission housing. They
are controlled bv the PCM.
The table below shows the lock-up conditions for lock-up
control solenoid valves and linear solenoid pressure.
LINEAR SOLENOID PRESSURE
(cont'd)
LOCK.UP CONTROL' VALVE
LOCK.UP CONTROLSOLENOID VALVE
AB
MODULATORPf,ESSURE
MAINSHAFT
COUNTERSHAFT
SUB.SHAFT
Lock-up
Conditions
Lock-up Conirol
Solenoid valveLinaal
Solenoid
PrgssulsAB
Lock-up OFFOFFOFFHigh
Lock-up, HalfONDuty operation
OFF - ONLow
Lock-up, FullONONHigh
Lock-up
during
deceleration
ONDuty operation
OFF - ON
RELIEF VALVE
LOCK'UP TIMINGVALVE
COOLER RELIEF VALVE
ATF COOLERATF STRAINER
ATF PUMP
14-39
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Page 571 of 1395
Terminal NumborSignalDescriptionMeasuring Conditions/Terminal Voltage
D1LCALock-up control solenoid valve A
control
During lock-up conditions: Baftery voltage
During no lock-up condition: 0 V
D2SHBShift control solenoid valve B
control
Battery voltage in following positions:
. E, E and positions
. E, -ql, and E positions in lst and 2nd gear
0 V in following positions:
. E, E;, and E positions in 3rd gear
. E and E positions in 4th gear
. E, El, and El positions
D3LCBLock-up control solenoid valve B
control
During full lock-up conditions: Battery voltage
During half lock-up conditions; Pulsing signal
D4Not used
D5VB SOLPower supply for solenoid valves
(Under-hood Fuse 15)
With ignition switch ON (ll); Battery voltage
With ignition switch OFF: 0 V
D6ATP RAy'T gear position switch
B position input
In E position: OV
In other than E position: Baftery voltage
D7SHAShift control solenoid valve A
control
Battery voltage in following positions:
. E position
. E, E, and E positions in 2nd and 3rd gear
. E position
0 V in following positions:
. E position. E. E, and E positions in lst gear
. Erl and E positions in 4th gear
.EandEpositions
D8
{'98 model}
ATP D3Ay'T gear position switch
E position input
In E position: 0V
In other than E position: Baftery voltage
D8
('99 - 00 models)
O/D SWOver-Drive (O/D) switch signal
input
When Over-Drive {O/D) is OFF (O/D OFF
indicator light is ON): 0 V
When Over-Drive {O/D) is ON {O/D OFF
indicator light is oFF): Battery voltage
D9ATP D4A/f gear position switch
E position input
In E position: 0V
In other than E position: 5 V
D10NCCountershaft sDeed sensor inoutDepending on vehicle speed: Pulsing signal
when vehicle is stopped: Approx.0 V
Dl1NMMainshaft speed sensor inputDepending on vehicle speed: Pulsing signal
When engine is stopped: Approx. 0 V
D12NMSGMainshaft speed sensor ground
D13ATP NPA,/T gear position switch E and
El positions input
InEandEpositions: 0V
In other than E and m position: 5 V
D14AlP 2A/T gear position switch
El position input
InE position; 0V
In other than E position: Battery voltage
D15ATP 1A,/T gear position switch
E position input
InEposition:0V
ln other than El position: Battery voltage
D16NCSGCountershaft speed sensor
grouno
PCM CONNECTOR D (16P)
14-55
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Page 651 of 1395
Lock-up Control Solenoid Valve A/B Assembly
Test
1.
2.
Disconnect the 2P connector from the lock-up con'
trol solenoid valve A'lB assembly.
Measure the resistance between the No. 2 terminal
(solenoid valve A) of the connector and body
ground. and bet\iveen the No. 1 terminal (solenoid
valve B) and body ground.
STANDARD: 12 - 25 o
LOCK-UP CONTROLSOLENOID VALVECONNECTOR I2P)
Replace the lock-up control solenoid valve A/B
assembly if the resistance is out of specification
lf the resistance is within the standard, connect the
No. 1 terminal of the connector to the battery positive
terminal. A clicking sound should be heard Connect
the No. 2 terminal to the battery positive terminal. A
clicking sound should be heard. Replace the lock-up
control solenoid valve Ay'B assembly if no clicking
sound is heard when either terminal is connected to
the banerv Dositive terminal.
Check the lock-up control solenoid valve fluid pas-
sages for dust or debris, and replace as an assem
bly, if necessary.
Terminalside ofmale terminals
LOCK.UP CONTROL
Replacement
NOTE: Lock-up control solenoid valves A and B must be
removed/replaced as an assembly.
1. Remove the mounting bolts and the lock-up control
solenoid valve A,,/B assembly.
LOCK.UP CONTROL6 x 1.0 mm SOLENOIO VALVE12 N.m 11.2 kgf.m,8.7 lbf.ft) A/B ASSEMBLY
Replace.Clean the mounting surfaceand flu id passages.
2.Clean the mounting surface and fluid passages, and
install a new lock-up control solenoid valve IVB with
a new filter/gasket.
Check the connector for rust, dirt, or oi!, and recon-
nect it securely.
oa
14-135
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Page 652 of 1395
Shift Control Solenoid Valve A/B Assembly
Test
'1. Disconnect the 2P connector from
solenoid valve Ay'B assembly.
the shift control
Terminalsade ofmale terminals
Measure the resistance between the No. 1 terminal(solenoid valve A) of the shift control solenoid valve
connector and body ground, and between the No. 2terminal (solenoid valve B) and body ground.
STANDARD: 12 - 25 O
Replace the shift control solenoid valve A,/B assem-bly if the resistance is out of specification.
lf the resistance is within the standard. connect theNo, I terminal of the shift control solenoid valveconnector to the battery positive terminal. A clickingsound should be heard. Connect the No. 2 terminalto the battery positive te.minal. A clicking soundshould be heard. Replace the shift control solenoidvalve A/B assembly if no clicking sound is heardwhen either terminal is connected to the battervpositive terminal.
14-136
Replacement
NOTE: Shift control solenoid valves A and B must beremoved/replaced as an assembly.
1. Remove the shift control solenoid cover.
2. Remove the mounting bolts, the clamp and the shiftcontrol solenoid valve Ay'B assembly, then disconnect
the connector.
6x1.0mm12 N.m{1.2 k9 .m,8.7 lbtft}CLAMP ARACKET
FILTER/GASKETReplace.Clean the mounling surfaceand fluid passages.
Clean the mounting surface and fluid passages. andinstall a new shift control solenoid valve Ay'B assem-bly with the clamp and a new filter/gasket.
Install the shift control solenoid cover.
Check the connector for rust, dirt. or oil, and recon-nect it securely.
w
SHIFT CONTROLSoLENO|O COVEn
SHIFT CONTROLSOLENOID VALVE A/BASSEMBLY
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Page 670 of 1395
Symptom-to-Component Chart
Hydraulic System (cont'd)
SYMPTOMCheck these items on thePROBABLE CAUSE ListCheck these items onthe NOTES Lisr
Shift lever does not operate smoothly.o, JdPFails to shift; stuck in 4th gear.14, 41 , 48
Transmission will not shift into park in E position.6, 38, 61PStall rpm high; all clutch pressures are in specification.40D,K,OLock-up clutch does not disengage.18, 43, 44, 45, 46, 49,50,57
Lock-up clutch does not operate smoothly.14, 40, 43, 44, 45, 46, 49, 50. 57Lock-up clutch does not engage.'t8, 40, 43, 44, 45, 46, 49, 50, 56, 57Vibration in all positions.
No engine braking in I position.59
Shift position indicator does not indicate anv position,6. 38, 60
PROBABLE CAUSE
I 33 Thrust washer worn/damaged
ATF pump worn or binding34Clutch clearance incorrect
Regulator valve stuck or regulator valvespflng wornDrive plate delective or transmission mtsas-sembled
Servo valve stuck5ttTorque converter housing or transmissionhousing bearing worn/damagedMainshaft worn/damaged
Shift cable broken/out of adjustmentATF strainer clogged
7Final gears worn/damaged38Shift cable is worn where it attaches to thetransmission or at the body mountsIOne-way (sprag) clutch worn/damaged
1st gears worn/damaged {2 gears)39Modulator valve stuck10lst clutch defective40Torque converter check valve stuck112nd gears worn/damaged (2 gears)41Foreign material in separator plate't22nd clutch defectiveCPB valve stuck
t53rd clutch defective43Lock-up timing valve stuck144th clutch defective44Lock-up shift valve stucktcReverse gears worn/damaged (3 gears)Lock-up control valve stuck16Excessive ATF46Lock-up clutch Diston defective17Torque converter one-way clutch defective47Shift control solenoid valve A defecttve
18Linear solenoid assemblv defective (,98 - OOmodels)48Shift control solenoid valve B dsfectrve
49Lock-up control solenoid valve A defective'19CPC valve stuckLock-up control solenoid valve B deleqtve20l-2 shift valve stuck51Servo control valve stuck212-3 shift valve stuck52lst accumulator defective3-4 shift valve stuck53Foreign material in 2nd exhaust orifice2nd accumulator defective54Foreign material in 3rd exhaust orifice3rd accumulator defectiveForeign material in 4th exhaust orifice4th accumulator defective56Mainshaft speed sensor defective262nd orifice control valve stuckCountershaft speed sensor defective273-4 orifice control valve stuck583rd sub accumulator defective2aForeign material in main orifice59lst-hold clutch defective29Foreign material in lst orifice60A/T gear position switch defective or out ofadjustment30Foreign material in reverse orifice
31Engine output low61Park gear mechanism defective32Needle bearing worn/damaged
14-154
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Page 671 of 1395
The following symptom can be caused
by improper repair or assemblYCheck these items
. lmproper clutch clearance
. lmproper gear clearance
One-way (sprag) clutch installed upside down
Park lever installed upside down
Shift fork bolt not installed
Vehicle creeps in N position.
Vehicle does not move in E, [D.lj, or E
position.
Transmission locks up in E position.
Excessive drag in transmission.ATF pump binding and seizure
Use proper tools when replacing the ATF pump gears, and be careful
to damage the ATF pump when torque down the main valve body.
Check that the shift fork bolt is installed on the shift fork shaft
not
Excessive vibration, rpm related.Torque converter not fully seated in ATF pump
Reverse selector hub installed upside downNoise only with wheels moving.
Mainshaft oil seal po9s out.Mainshaft oil seal improperly installed
lnstallthe mainshaft oil seal tlush with the torque converter housing lf
the mainshaft oil seal is installed into the torque converter housing until
it bottoms. it will block the fluid return passage and result in damage
Various shifting problems.. Springs improperly installed
. Valves improperly installed
Harsh upshift.Check valve balls not installed
(cont'd)
4-155
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Page 672 of 1395
Symptom-to-Com ponent Chart
Hydraulic System (cont'd)
NOTES
See flushing procedure, page l4-264 and 265,
BSet idle rpm in gear to specified idle speed. lf still no good, adjust motor mounts as outlined in enginesection of this manual.
clf the large clutch piston O-ring is broken, inspect the piston groove for rough machining.
Dlf the clutch pack is seized or is excessively worn. inspect the other clutches fot wear, and check the orificecontrol valves, CPC valve, and linear solenoid for free movement.
lf the linear solenoid is stuck, inspect the clutches for wear.
lf the 1-2 shift valve is stuck closed. the transmission will not upshift. lf stuck open, the transmission hasno lst gear.
Hlf the 2nd orifice control valve is stuck, inspect the 2nd and 3rd clutch Dacks for wear.
lf the 3-4 orifice control valve is stuck, inspect the 3rd and 4th clutch packs for wear.
Jlf the clutch pressure control valve is stuck closed. the transmission will not shift out of lst gear.
Klmproper alignment of main valve body and torque converter housing may cause ATF pump seizure. Thesymptoms are mostly an rpm-related ticking noise or a high-pitched squeak.
Llf the ATF strainer is clogged with particles of steel or aluminum, inspect the ATF pump and differentialpinion shaft. lf both are OK and no cause for the contamination is found, replace the torque converter.
Mlf the lst clutch feed pipe guide in the end cover is scored by the mainshaft. inspect the ball bearing forexcessive movement in the transmission housing. lf oK, replace the end cover as it is dented. The o-rinounder the guide is probably worn.
N' Replace the mainshaft if the bushing for the 4th feed pipe is loose or damaged, lf the 4th feed pipe is darrFaged or out of round. replace the end cover.' Replace the mainshaft if the bushing for the l st feed pipe is loose or damaged. lf the 1st feed pipe is dam-aged or out of round, replace it.
oA worn or damaged sprag clutch is mostly a result of shifting the transmission in E!. E, or E positionwhile the wheels rotate in reverse. such as rocking the vehicle in snow.
PInspect the frame for collision damage.
lnspect for damage and wear:
l. Reverse selector gear teeth chamfers.
2. Engagement teeth chamfers of countershaft 4th and reverse gear.
3. Shift fork for scuff marks in center.
4. Differential pinion shaft for wear under pinion gears.
5. Bottom of 3rd clutch for swirl marks.
Replace items 1, 2, 3. and 4 if worn or damaged. lf transmission makes a clicking, grinding, or whirring noise,also replace mainshaft 4th gear, reverse idler gear, and countershaft 4th gear in addition to 1,2, 3, or 4.lf differential pinion shaft is worn, overhaul differential assembly, replace ATF strainer, and thoroughly cjeantransmission, flush torque converter. cooler, and lines,lf bottom of 3rd clutch is swirled and transmission makes gear noise. replace the countershaft and final drivenoear,
Be very careful not to damage the torque converter housing when replacing the main ball bearing. you
may also damage the ATF pump when you torque down the main valve body. This will result in ATF pumpseizure if not detected. Use the Drooer tools.
SInstall the main seal flush with the torque converter housing. lf you push it into the torque converterhousing until it bottoms out, it will block the fluid return passage and result in damage.
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Page 708 of 1395
Valve Body
Repair
NOTE: This repair is only necessary if one or more ofthe valves in a valve body do not slide smoothly in theirbores. Use this procedure to free the varves.
'1. Soak a sheet of #600 abrasive paper in ATF forabout 30 minutes.
2. Carelully tap the valve body so the sticking valvedrops out of its bore. lt may be necessary to use asmall screwdriver to pry the valve free. Be carefulnot to scratch the bore with the screwdriver.
4.
Inspect the valve for any scutf marks. Use the ATF-soaked #600 paper to polish off any burrs that areon the valve, then wash the valve in solvent and dryit with compressed air.
Roll up half a sheet of ATF-soaked #600 paper andinsert it in the valve bore of the sticking valve.Twist the paper slightly, so that it unrolls and fitsthe bore tightly, then polish the bore by twisting thepaper as you push it in and out.
NOTE: The valve body is aluminum and doesn,trequire much polishing to remove any ourrs.
,l
14-192
5.Remove the #600 paper. Thoroughly wash theentire valve body in solvent, then dry it with com-pressed ar.
Coat the valve with ATF, then drop it into its bore, ltshould drop to the bottom of the bore under its ownweight. lf not, repeat step 4, then retest. lf the valvestill sticks, replace the valve body.
Remove the valve. and thoroughly clean it and thevalve body with solvent. DrV all parts with com-pressed air, then reassemble using ATF as a lubricant.
1.
w
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Page 712 of 1395
Main Valve Body
Disassembly/lnspection/Reassembly
NOTE:
. Do not use a magnet to remove the check balls; it may magnetize the balls.t clean all parts thoroughly in solvent or carburetor cleaner, and dry them with compressed ai.. Blow out all passages.. Replace the valve body as an assembly if any parts are worn or damageo.. Checkall valvesforfree movement. lfanyfailtoslidefreely,seeValveBodyRepaironpage.t4_192.. Coat all parts with ATF during reassembly.
VALVE CAP CLIP
2ND ORIFICE CONTROL VALVE
SPRING SEAT
BALLS, 8
ACCUMULATOR CHOKE
VAI-VE
FELI€F VALVE
@
UK
MAIN VALVE BOOYInspect for wear, scratches,and sconng.
sERVO CONInOL
:,/\^._.^,
I-2 SHIFT VALVE
14-196
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