Valve body HONDA CR-V 1997 RD1-RD3 / 1.G Owner's Manual
[x] Cancel search | Manufacturer: HONDA, Model Year: 1997, Model line: CR-V, Model: HONDA CR-V 1997 RD1-RD3 / 1.GPages: 1395, PDF Size: 35.62 MB
Page 408 of 1395
Emission Control System
Evaporative Emission (EVAP) Controls (cont'dl
(From page 11-205)PCM CONNECTOR A (32PI
JUMPER wlRE
PCS IRED/YELI
Wire side of female terminais
PG1 (BLKI
Chsck th6 EVAP purgo controlsolonoid valve:'L Reconnect the EVAP purgecontrol solenoid valve 2P con-nector.2. Connect PCM connector terminals 415 and A10 with a
Chscl to. an op6n or 3hort in th€wiro (PCS lin6):Measure voltage between PCMconnector terminal A15 and bodygrouno,
Does the solenoid valve clickwhen the jumper is connected?
Chock for . .hort in tho wiJe IPCSline):1. Turn the ignition switch OFF.2. Disconnect the PCM connec-tor A (32P).
3. Disconnect the EVAP purge
control solenoid valve 2P con-nector,4. Check for continuity betweenbody ground and PCM con-nector terminal A15.
ls there battery voltage?
Rooair short in tho wir6 bctweenthe EVAP purge control 3olenoidvalvo and tho PCM (A151.
Ropair open in the wir6 betwoonthe EVAP pu]go control .olonoidv.lve end the PCM (A15).
Check the vacuum lin6:Check the vacuum lines of EVAPsystem tor misrouting, leakage,brsakago and clogging.
Are the vacuum lines OK?
(To pago 11'207)
11-206
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Page 417 of 1395
EVAP purge control 3ol€noidvalve test.{Tho continu.tion of DTC Plil56
trouble3hootin9.)
Check the EVAP purge control
solenoid valve:1. Disconnect the vacuum hosetrom the EVAP control canis-
ter, and connect a vacuumpump to the hose.2. Turn the ignition switch ON (ll).
3. Apply vacuum to the hose.
EVAP purge contlol solenoidv.lvo is OK. Do the EVAP bypai3
solenoid valve test (see Page 11-
2161
Does the valve hold vacuum?
Check tho EVAP purge control
solenoid valve:'t. Turn the ignition switch OFF.2. Disconnect the EVAP Purgecontrol solenoid valve 2P con-nector,3. Check for continuity between
the EVAP pu rge controlsolenoid valve 2P connectorterminal No.2 and bodYground,
Check for s short in the wire
{PCS linel:1. D iscon nect the ECM/PCMconnector A {32P).2. Check for continuity betweenthe EVAP purge controlsolenoid valve 2P connectorterminal No. 2 and bodyground.
neprir short in tho wite bot$reon
the ECM/FCM lAGl and thc EVAPpurge control 3olenoid valve.ls there continuity?
Substitut€ a known-good ECM/
PCM and recheck. lf symptom/indication goe3 away. repl.ce
thc originsl ECM/PCM.
VACUUMPUMP/GAUGE,0 - 30 in.HgA973X - 041 -
xxxxx
EVAPCONTROLCANISTER
EVAP PURGE CONTROL SOLENOIDVALVE 2P CONNECTOR (Cl08}
Wire side offemaleterminals
(cont'd)
-21511
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Page 418 of 1395
Emission Control System
Evaporative Emission (EVAPI Controls (cont,dl
1T1456I (conro)
€VAPBYPASSSoLENOtOVALVEECM/PCM CONNECTOR A I32P)
Wire side of female terminals
VACUUMPUMP/GAUGE.0 -30 in.HgA373X -
041 -
xxxxx
EVAP BYPASS SOLENOIDVALVE 2P CONNECTOR lcorlTl
2WBS(BLU}
II
Wire side offemaletermrnats
tGlIBLK/WHT}
EVAP bypa3s solenoid valve test.(The continuation ot DTC P1456troubleshooting.l
Check the EVAP bypass sotenoid
1. Disconnect the vacuum hosefrom the EVAP two way valve,and connect a vscuum pumpto the hose,2. Connect the ECM/PCM con-nector terminal 43 to the bodyground with a jurnper wire.3. Turn the ignition switch ON 0t).4. Apply vacuum to the hose.
EVAP bypass solenoid valve/EVAP two way valve is OK. Doth6 EVAP control crnister ventshut vafve le3t lso€ page 11-2'111.
Does the valve hold vacuurn?
Check for an op€n in the wir€(2WBS line):1. Turn the ignition switch OFF.2. Disconnect the EVAP bypasssolenoid valve 2P connector.3. Check for continuity betweenthe EVAP bypass so teno idvalve 2P connector terminalNo. 2 and body ground.
Repair open in the wire betweenthe EVAP bypass solenoid valv.and ECM/PCM lA3).
Chack tor an op6n in the wirellcl line):1. Turn the ignition switch ON l).2. Measure voltage between theEVAP bypass solenoid valve2P connector terminal No. land body ground.
Replace the EVAP byps.,s solonoidvatus and O-ring3.
Ropair o,pen in the wire botwoenth6 EVAP bypa$ sotenoid vatvoand No. 15 ALTERNATOR SpSENSOR (7.5 Altuso.
2WBS (BLU}
/3
7,x
4l6o/to -/
,/ 16 1718't920 211/z3
26 272A29solT32
JUMPER WIRE
11-216
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Page 419 of 1395
EVAP control canister vent shut
valve l€st,lThe conlinualion ot DTC P1456
troubleshooting.)
Check the EVAP control cankter
vent 3hut valve:1. Disconnect the vacuum hose
from the EVAPthree way valve,
and connect a vacuum PUmPto the hose.2. Turn the ignition switch ON (ll).
3. Apply vacuum to the hose
EVAP control crnisier vent lhul
valve is OK. Do the v.cuum
hoses and connections te3l lseepage 11-218).
Does the valve hold vacuum?
Chock the EVAP control canbtel
vent shul valvo:1. Turn the ignition sw;tch OFF.
2. Disconnect the EVAP controlcanister vent shut valve 2P
connector.3. Check for continuity betlveen
the EVAP control canister vent
shut valve 2P connector termi-nal No. 1 snd body ground.
Roplac€ the EVAP contlol canbt€]venl shut valve and O-ring.
Chock lor a short in the wire(VSV lino)r1. Disco n nect the EcM/PCN4connoctor A (32P).
2. Check for continuity betweenthe EVAP control canister vent
shut valve 2P connector termi-
nal No. 1 and body ground.
Reorir 3hort in tho wiro bgtweonthe EC1I/I/PCM lAal .nd the EVAP
codrol canbtor vent shut valv6.
Substitute a known.good ECM/
PCM and recheck. lf symptom/indicrtion goes awaY, replace
the original ECM/PCM.
VACUUMPUMP/GAUGE,0 - 30 in.Hg
A973X - 041 -
XXXXX
EVAPTHREE
VALVEEVAPCONTROLCANISTER
EVAP CONTROLCANISTER VENT SHUTVALVE 2P CONNECTOR IC361)
r+l1t2l
f1 VSV
(o) tLT cnrulwxrt
1
Wire side of female terminals
EVAPCONTROLCANISTERVENTSHUTVALVE
O.RINGReplace.
ILT GRN/WHT)
(cont'd)
-21711
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Page 422 of 1395
Emission Control System
Evaporative Emission (EVAP) Controls (cont,dl
iTl457l ("ont'or
APCONTROLCANISTER
Ropair op€n in th6 wire betweenthe EVAP purge control 3olenoidvelve and ths ECM/PCM (A61.
VACUUMPUMP/GAUGE, O-30 iN.HgA973X - 0rl -
xxxxx
'\)
Wire side of lemale terminals
EVAP PURGE CONTROL SOI.ENOIDVALVE 2P CONNECTOR (Cl08)
PCSIRED/YELI
femaletermanals
ECM/PCM CONNECTOR A {32P}
PCS (RED/YELI
,/3 458/'t0
,,/ 14 ,/'t61718l92024
,/ 262930
JUMPERWIRE
- The MIL has been reported on.- DTC P1457 is stored.{EVAP purge control solenoidvalve test.l*
Check the EVAP purge conrrol30lenoid velve:L Disconnect the vacuum hosefrom the EVAP conlrol canis,ter, and connect a vacuumpump to the hose.2. Connect the ECM/PCM connector terminal A6 to the bodyground with a jumper wire.3. Turn the ignition switch ON (tl).4. Apply vacuum to the hose.
EVAP purge control solenoidvalve is OK. Oo the EVAP bypasssolenoid valve t€3t {see psge 1l-221t.
Does the valve hold vacuum?
Check for an open in the wire(PCS line):1. Turn the ignition switch OFF.2. Disconnect the EVAP purgecontrol solenoid valve 2P connector,3. Check for continuity betweenthe EVAP pu rge controlsolenoid valve 2P connectorterminal No.2 and bodygrouno,
ls there continuity?
Check for an open in the wire(lGl line):1. Turn the ignition switch ON t).2. Measure voltage between theEVAP bypass solenoid valve 2pcoonector terminal No. 1 andbody ground.
ls there battery voltage?
Repah open in lhe wir6 betwoenthe EVAP pu.ge cont.ol solonoidvdlvo and No. 15 ALTERNATORSP SENSOR {7.5 Al fu!€.
*: Continued frr '98 model
1-220
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Page 423 of 1395
EVAP bypass solenoid valv€ test.
{The continuation of DTC P1457
troubleshooting.l
Check the EVAP bypass 3olenoid
1. Disconnect the vacuLlm hose
from the EVAP two way valve,
and conned a vacuum PUmPto the hose.2. Turn the ignition switch ON (ll).
3. Apply vacuum to the hose
EVAP bvpas3 30lsnoid vrlvo/
EVAP two way v.lve is OK. Do
the EVAP control canisler vent
3hut v.lve te3l (see Psge11'2221.
Does the valve hold vacuum?
Ch6ck the EVAP byp.ss solenoid
'1. Turn the ignition switch OFF
2. Disconnect the EVAP bypass
solenoid valve 2P connector.
3. Check {or continuity between
the EVAP bypass soleno id
valve 2P connector termlnal
No. 2 and body ground
ReDlace the EVAP bypass 3olenoid
valve and O-rings.
Check for a short in lhe wire
{2WBS linel:1. Disconnect ECM/PCM connec
tor A (32P).
2. Check lor continuity betlveenthe EVAP bypass soleno id
valve 2P connector termrnalNo. 2 and body ground.
Rcpsir short in th. wire bgtwoen
the EcM/PCtrl lA3l lnd the EVAP
bypa$ solenoid valvo.ls there continuitY?
Sub3tiiute . known'good ECM/
PCM End recheck. lI sYmptom/
indication goe3 away, tePlace
the original ECM/PCM.
EVAPBYPASSFUELTANKPRESSUBE SENSORSOLENOIDVALVEEVAP TWO WAY
VALVE
VACUUMPUMP/GAUGE,0-30 in.HgA973X -
041 -
xxxxx
EVAP AYPASS SOLENOID
VALVE 2P CONNECTOR (C647}
q
@)
T
t.'-+lt1t?l
| 2wBs
(d1 terul
Y-L
Wire side offemaleterminals
2WBS(BLU}
(cont'd)
11-221
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Page 424 of 1395
Emission Control System
Evaporative Emission (EVAP) Controls (cont,dl
lT145il ("ont'o)
EVAPTHREE
VATVE \'t
VACUUMPUMP/GAUGE,0 - 30 in.HsA973X - 041 -
xxxxx
WIRE
ECM/PCM CONNECTOR A {32PI
vsv
Wire side of female terminals
EVAPCONTROLCANISTER
EVAP CONTROLCANISTER VENT SHUTVALVE 2P CONNECTOR {C361}
riErr+J
I vsv
/A {Lr GRN/WHT|
YI
Wire side of female terminals
CANISTEFVENTSHUTVALVE
EVAPCONTROL
(}BING
Replace.
ffilrcr
e
(BLK/wHr)
I
11-222
EVAP control canistor vent shutvalve t6t.(The continuation of DTC p1457
troubl€ahooting.)
Chcck the EVAP control c.nirt6lvent ahut vrlve:1. Disconnect the vacuum hosetrom the EVAP thre€ way valve,and connect a vacuum pumpto the hose.2. Connect the ECM,PCM conn6c,tor terminal A4 to the bodyground with a jumper wire.3. Turn the ignition switch ON fil).4. Applyvacuum to the hose.
EVAP control crni3ter v6nt shutvelve b OK. Do the canistsr sys-lern loak test {3ee page 11-2231.
Does the valve hold vacuum?
Check for an open in the wireIVSV linGll1. Turn the ignition swjtch OFF.2. Disconnect the EVAP controlcanister vent shut valve 2pconnector.3. Check for continuity betweenthe EVAP control canister ventshul valve 2P connector termi-nal No. l and body ground.
Ropril op6n in tho wire botweonthe EVAP control canister v6ntshut v.lve and the ECM/PCM(A41.
Check tor an open in the wire(lGl line):1. Turn the ignition switch ON l).2. Measure voltage between theEVAP control canister vent shutvalve 2P connector terrninalNo. 1 and body ground.
Roplace thG EVAP cont.ol canis-ter Yent shut velve and O-ring.
Repai. opon in the wire betwoenth6 EVAP control canister vontshut valve .nd No. 15 ALTERNA-TOB SP SENSOR t?.5 Alfus6.
{LT GRN/WHT)
36a10
l4/1617l8't9202l232426 272a2930
JUMPER
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Page 517 of 1395
Automatic Transmission
Special Tools . 14'2OescriptionGeneral Operation . .... 14 3Power Flow . . .. '14_6
Electronic Control System .. .. . . .. .14_15Hydraulic Control .. 14 24Hydraulic Flow....-....... .. . .... .. .. . 14_29Lock'up Syslem .. .'t4'39Electrical SystemComponenl Locdlrons 14 45
PCM Circuil Dragram (A/T Control Svstem)'97 Model ....................... . . .. - . ... .14-46'98Model ................. . ... .. .. .1450'99 00Models.... . .... . . . 1452
PCM Terminal Voltage/Measuring ConditionsA"/T Control System-'97Model ...... ..14'48A,/T Control System -'98 00 Models . . .. . . 14 54
Troubleshooting Procedures .. ..... ... - 14_56Svmotom to comoonent CharlEiectr,cal Syslem -'97 Model . . 14 60Electrical System -'98 - OO Models . .. . . 14_62Electrical Troubleshooting ('97 Model)Troubleshooting Flowaharts .... ..... . .. . . 14_64
Electrical Troubleshooting ('98 - 00 Models)Troubleshootinq Flowclt"n" .... . ....- . .14-93ElectricalTroublesliooting('99 00Models)Troubleshootino FlowchartO/D OFF Indicator Light Does Not Come On 14 131
O/D OFF Indicator Liaht On ConstantlY . . . .1!-132O/D OFF Indicator Light Does Not Come OnEven Though O/D Switch ls Pressed . .... - 14_133
Lock up Control Solenoid Valve A,/B AssemblyTest....................-......... . .14-135Replacement . .ll_135Shifr ControlSolenoid Valve Ay'B Assembl,Test .............................. . .. 14-136
Replacement..............- . .14'136Linear Solenoid AssemblYTest.............................................. .. .... . 14_137Replacement .. . 14138Marnshaftlcountershafl Speed SensorsReplacement ...-... 14_138A/T Gear Position SwitchTest ..........................-... . .. 14-139ReplacementA/T Gear Positionlndicator.................. 14-140
Valve Eodynepair ............................... ..... . . .. - . .. ... 14 192
Assembly .................... .. 1{_193
Valve CapsDesciiption....-........................ .. ...... 14194
tnspeition ................... .. 14' 195
N4ain Valve BodyDisassembly/lnspection/Reassemblv - ...... .. 14_196
Secondarv Valve BodYDisassemblv4nspectron/ReassemblY .. . 14 198
Reoulator Valve Bodvbisassembtv,lnspiction/Reassemblv . 14199
Servo EodvDisassembly/lnspection/Reassembly ... ....14'200
Lock'uo Valve BodYDis;ssembly/lnspection/Reassembly .... . 14_201
MainshaftDisassembly/lnspection/Reassembly .. .. .. ..14'202
Inspection ....-.............. ..11_203
Sealing RingsReilaceient ...... ..... . 14'204
CountershaftDisassembly/lnspection/Reassembly .. . . . . . 11-205
Disassembly/Reassemb|y . . ........ ...... . .. 14_206Inspedron ................ . .... . 14 207
One wav ClutchDisassembly/lnspection/ReassemblY ... 11_209
Sub-shaftDisassembly/lnspection/Reassembly ... . .. . 14-210
oisassembly/Re6ssembly . . ... .-...... . . ..14-211
Sub-shaft BearingsReplacement .......14'212
Clutchllfustrated Index .......... . . .14-213
Disassembly .... .. .....14-216Reassembfy .... . .. .. . 14'218
Differentialllfustrated Index " 14-222Backlash Inspection . .... . .14'223
Bearing Repiacement .. 11-223
Differe-ntial Carrier Replacement .. .. . . . .. ..11-2?4
OifSeal Replacement. . .. 14'225
Side Clearance lnspection . . - .. ... . - ...... . .. 11'226
Transmission Housing BearingsMainshaJVCountershaft EearingsRepfacement .......14221Sub'siralt Eearing Replacement . . . . . . . . . ..11'224
Toroue Converter Housing BearingsMainshattEearing/OilSe6lReplacement . .. l4229
Countershaft Bea;ing Replacement.. .... .. ..14-230
Input Test - '97 - 98 ModelsInput Test '99 - 00 Models
Symptom to-Component ChartHydraulic System ...............
Checking
Removal ...,lllustrated Index (4WD)
Interlock SystemInterlock ControlUnit lnputTest. -..... -.. .... . - 14 144* Key Interlock Solenoid Test .- .. . . . - . . . ..... 14_146* Shift Lock Solenoid Test ..............-.-. . .. . ... .... 14 147*Shift LockSolenoidReplacement...... .. . .. .. 14 148* park pin Switch Test ......... 14 119' Park Pin Switch Replacement- '97 - 98 Models ....... 14-150* Park Pin Swirch/Over Drive (O/Di SwitchReplacemenl '99-00Models . .. 14_151over-Drive (O/D) Switch {'99 00 [4odels]Test........_..................... .......14-152Hydr.ulic System
..............._............... t4 142.................................. 14-143
Control Lever AssemblyR6placement ......,.,Reverse ldler Gear
lllustrated lndex
.......... 14-230
14 231
11-231
1nsta1|ation ..................Park StopInspeclion/AdjustmenlTransfer AssemblY.......14.232
RoadTest.............-.... ........ .StallSpeedTest ....._........................ ....... 14-159Fluid Level......_................... 14'160
Disessembly .................... 14-235Transfer Drive Gear BearingReplacementTrans{er Driven Gesf Shaft BearingReplacementTransfer Housing Roller BearingReplacementTransfer Cov€r A Bearing Outer RaceReplacementTransfer Housing Bearing Outer RaceReplacement ......-..,,,,,.....ReassemblvTransmassaonBeassembly ... -.. .... .14 250
Torque Converier/Drive Plate . .-. .... .. . ... .....14_258
Transmissionlnstatlation .................. ....... 14'259
Cooler Flushing . . ......11-261ATF Cooler HosesConnection.................. ....... 14-266I Shift LeverRemoval/lnstallation . .. 14'261
Disassemblv/Reassemblv - '97 - 98 Models . . 14_264
Disassembli/Reassemblv -'99 - 00 Models . 14-269
Over'Orive (O/D) Switch WireClearanceAdjustment. - ... . . . .. .. . 14'270
Detent Spring Replscement . . -.. ... .14'271*Shift CableAdiustment ....... 14'272
Repfacement.............. . 11'273
14 15711-237
11-237
14-238
$-234
11-23914-240
Transmigrion
Inspeclron ....., ...........Transfer AssemblyRemova1,.,,,..............,lnstallalion ........... .. ...Transmission
14 164
14-16514,167
14-169
End Cover/Transmissio . 14'174Transmission Housing .... ... .. . . .... .. 14-176Torque Converter Housingly'alve Body.. - ... -. 14 178
lllustrated lndex (2WD)End Cover/Transmissio ....... 14 180Transmission Housing . . ... . .. .... ... 14'182Torque Convener Housing/r'alve Body ......- 14-184
End CovefRemovat ...................... ....... 14'186Transmission HousingRemoval ...................... .. 14_188Torque Convener HousingA/alve BodYRemovat ................-..... .-..... 14-190
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Page 519 of 1395
Description
General Operation
The Automatic transmission is a 3-element torque converter and triple-shaft electronically controlled unit which provides 4
speeds forward and 1 reverse speed The unit is positioned in line with the engine'
There are two tvoes of automatic transmission on CR-V; the four-wheel drive (4WD) model ('97 - 00)' and the front-wheel
drive (2WD) model ('98 - 00).
Toroue Converter, G€ars, and Clutches
The torque converter consists of a pump. turbine. and stator assembly in a single unit. The torque converter is connected to
the engine crankshatt. These parts turn together as a unit as the engine turns. Around the outside of the torque converter is
a ring gear which meshes with the starter pinion when the engine is started. The torque converter assembly serves as a fly-
wheel while transmitting power to the transmission mainshaft.
The transmission has three parallel shafts: the mainshaft. the countershaft, and the sub-shaft. The mainshaft is in line with
the engine crankshaft. The mainshaft includes the 1st, 2nd. and 4th clutches, and gears lor 3rd,2nd,4th. reverse and 1st
(3rd gear is integral with the mainshaft, while reverse gear is integral with the 4th gear). The countershaft includes the 3rd
clutch and gears for 3rd,2nd, 4th, reverse, 1st, and park. Reverse and 4th gears can be locked to the countershaft at its cen-
ter, providing 4th gear or reverse, depending on which way the selector is moved. The sub-shaft includes the lst-hold
clutch and gears for lst and 4th.
The gears on the mainshaft are in constant mesh with those on the countershaft and sub-shaft. When certain combinations
of gears are engaged by the ctutches, power is transmitted from the mainshaft to the countershaft to provide E, D!, tr, tr,
and E position ('97 - 98 models). and E. E, E, and E position ('99 - 00 models)'
Electlonic Control
The electronic controt system consists of the Powenrain Control Module (PCM), sensors, a linear solenoid, and four
solenoid valves. Shifting and lock-up are electronically controlled for comfortable driving under all conditions. The PCM is
located below the dashboard, under the kick panel on the passenger's side.
Hydraulic Control
The valve bodies include the main valve body, the secondary valve body, the regulator valve body, the servo body, and
the lock up valve body. They are bolted to the torque converter housing. The main valve body contains the manual valve,
the 1-2 shift valve, the 2nd orifice control valve. the CPB {Clutch Pressure Back-up) valve, the modulator valve, the servo
control valve. the relief valve, and ATF pump gears. The secondary valve body contains the 2-3 shift valve, the 3-4 shift
valve, the 3,4 orifice control valve. the 4th exhaust valve and the CPC (Clutch Pressure Control) valve. The regulator valve
bodv contains the pressure regulator valve, the torque converter check valve, the cooler relief valve, and the lock-up con-
trol valve. The servo body contains the servo valve which is integrated with the reverse shift tork, and the accumulators
The lock-up valve body contains the lock-up shift valve and the lock-up timing valve. The linear solenoid and the shift con-
trol solenoid valve Ay'B are bolted to the outside of the transmission housing, and the lock-up control solenoid valve Ay'B is
bolted to the outside of the torque converter housing. Fluid trom the regulator passes through the manual valve to the
various control valves. The clutches receive fluid from their respective feed pipes or internal hydraulic circuit
ShiftControl Mechanism
input from various sensors located throughout the vehicle determines which shift control solenoid valve the PCM will acti-
vate. Activating a shift control solenoid valve changes modulator pressure, causing a shift valve to move. This pressurizes
a line to one of the clutches. engaging that clutch and its corresponding gear. The shift control solenoid valves A and B are
controlled by the PCM.
Lock-up Mechanism
tn E! position (,97 - 98 modets) and in E position ('99 - O0 models), in 3rd and 4th, and in Del position in 3rd ('97 - 98
models) and in El position with Over,Drive (O/D) is OFF (by pressing rhe O/D switchl in 3rd ('99 - 00 models), pressurized
fluid is drained from the back of the torque converter through a fluid passage, causing the lock-up piston to be held
against the torque converter cover, As this takes place, the mainshaft rotates at the same speed as the engine crankshaft.
Together with hydraulic control, the PcM optimizes the timing of the lock-up mechanism The lock-up valves control the
range of lock-up according to lock-up control solenoid valves A and B, and the linear solenoid. When lock-up control
solenoid valves A and B activate, the modulator pressure changes. The lock-up control solenoid valves A and B and the
linear solenoid are controlled by the PCM.
{cont'd)
14-3
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Page 540 of 1395
Description
Hydraulic Control
The hydraulic control system is controlled by the ATF pump, valves, accumulators, and electronically controlled solenoids.
The ATF pump is driven by splines on the end of the torque converter which is aftached to the engine. Fluid from the ATF
pump flows through the regulator valve to maintain specified pressure, through the main valve body, to the manual valve,
directing pressure to each clutch. The valve body includes the main valve body, the regulator valve body, the lock-up
valve body, the secondary valve body, the servo body, the linear solenoid, the shift control solenoid valve Ay'B assembly,
and the lock-up control solenoid valve A/B assembly. The shift control solenoid valve A,/B assembly and the linear
solenoid are bolted on the outside of the transmission housing. The lock-up control solenoid valve A,/B assembly is bolted
on the outside of the torque converter housing.
LINEAR
SHIFT CONTROLSOLENOID VALVE A/BASSEMBLY
SECONDARY VALVEBODY
REGULATORVALVE BOOY
VALVE BODY
SOLENOID VALVE A/BASSEMELY
N
ATF PUMP GEARS
14-24
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