PGM-FI Main Relay
Description
The PGM-Fl main relav actuallv contains two individual
relays. This relay is located at the passenger side of the
cowl. One relay is energized whenever the ignition is on
which supplies the battery voltage to the ECM/PCM,
power to the fuel injectors, and power for the second
relay. The second relay is energized for two seconds
when the ignition is switched on, and when the engine
is running, to supply power to the fuel pump
PGM.FIMAIN RELAY
Belay Testing
NOTE: lf the engine starts and continues to run, the
PGM-FI main relay is OK.
1. Remove the glovebox and the passenger's dash-
board lower cover (see section 20).
2. Remove the PGM-FI main relay
3. Aftach the battery positive terminal to the No. 2 ter-
minal and the battery negative terminal to the No. 1
terminal of the PGM-Fl main relay. Then check for
continuity between the No. 5 terminal and No. 4 ter-
minal of the PGM-FI main relay
. lfthere is continuity, go on to step 3.
. lf there is nocontinuity, replacethe PGM-Fl main
relav and retest.
No.2
To lGN. 1
To GROUND
To ST. SWITCH
To ECM/PCMCONNECTORTERMINAL A16(FLR)
To BAT O
To FUEL PUMPTo ECM/PCMCONNECTORTERMINAL(411 and A24,Bl .nd Bgal(IGP)
To FUEL PUMP
98 - 00 models
Attach the batterv Dositive terminal to the No. 5 ter-
minal and the battery negative terminal to the No. 3
termjnal of the PGM-Fl main relay. Then check that
there is continuity between the No. 7 terminal and
No. 6 terminal of the PGM-FI main relay.
. lf there is continuity, go on to step 4.
. lf there is nocontinuity, replacethe PGM-Fl main
relay and retest.
Attach the batterv oositive terminal to the No.6 ter-
minal and the battery negative terminal to the No. 1
terminal of the PGM-Fl main relay. Then check that
there is continuitv between the No. 5 terminal and
No. 4 terminal of the PGM-Fl main relay.
. lf there is continuity, the PGM-Fl main relay is OK.
. lf there is nocontinuity, replacethe PGM-FI main
5.
(cont'd)
11-147
No.5 No.5
relay and retest.
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lFrom page 11 188)
Ch6ck lor an open in the wir€
{FLR line):1. Turn the ignition switch OFF.
2. Disconnect the PCM connec-
tor A (32P).
3. Check for continuity between
the PGM-FI main relay 7P con-
nector terminal No. 1 and PCM
connector terminal A16.
Repair open in the wire be{weonthe PCM lAl6l and the PGM-FImain relay.
Check for an open in the wir€s
{lGP1, lGP2lin€s):'1. Reconnect the PCM connectorA (32P).
2. Reconnect the PGM'Fl main
relay connector.3. Turn the ignition switch ON (lli.
4. Measure voltage between PCM
connector terminals A11 and
A10, and between A24 andA10.
- Repair open in the wir€ bet'
ween th€ PCM {A11, A2ia} end
the PGM-FI main relay.- Reolsce the PGM-FI main rolaY.
ls there battery voltage?
Check tor an open in the PCM:
1. Turn the ignition switch OFF.2, Measu re voltage betweenPCM connector terminals A16
and A10 when the ignition
switch is first turned ON {ll) for
Substitute a known-good PCM
and recheck. lf ptesctibed volttgeis now available, roplaco tho orig'in.lPCM.
ls there '1.0 V or less?
Check the PGM-Fl m.in.elaV(see page 11-187).
('97 model)
IGRN/YELI
-t
PGM.FI MAIN RELAY 7P CONNECTOR (C432I
FLR
Wire side of lemale terminals
IGP2(YEL/BLK)
(cont'd)
_l
1 1-1 89
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Fuel Supply System
PGM-FI Main Relay (cont'dl
('98 - 00 models)-l
(From page 11,188)
Check lor an open in the wire(FLR line):1. Turn the ignition switch OFF.2. Disconnect the ECM/PCM connector A (32P1.3. Check for continuity betweenthe PGM-FI main relay 7P con-nector terminal No. '1 and ECM/PCM connector terminal 416.
Repaia open in the wire betweenthe EcM/PcM lAl5l .nd thePGM-FI m.in relay.
Check for an open in the wiresllcPl,lGP2linos):1. Reconnect the ECM/PCN4 con-nector I (25P).2. Reconnect the PGM Fl mainretay connector.3. Turn the ignition switch ON l).4, Measure voltage betweenECM/PCM connector terminalsB1 and 82, and between 89and 82.
Ropai. open in tho wire b6t-we€n th. ECM/PCM lBt, Btl.nd the FGM-FI main rd.y.R€plac€ th6 FGM+| main retay,
Chock for an open in the ECM/PCM:1. Turn the ignition switch OFF.2, Measure voltage betweenECM/PCM connector terminals416 and 82 when the ignitionswitch is first turned ON (tl) for
Subrtitute e known-good ECM/PCM and recheck. lf prescribsdvoltage b now ovrihble, replacothe originel ECM/PCM.
ls there 1.0 V or less?
Check the PGM-FI main.elav(s6e page 11-1871.
PGM.FI MAIN RELAY 7P CONNECTOF (C€2)
Wire sid€ of female terminals
ECM/PCM CONNECTOR B I25PI
IGP2(YEL/BLKI
ECM/PCM CONNECTORS
a t32Pl
Wire side of female terminals
Wire side of f€male terminsls
1 1-190
Dde"Jt;;liL-F-T--
PGl(BLK}
38s l1011131719202122
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EVAP PURGE CONTROL SOLENOID VALVE DUTY CONTROLLED AFTER
STARTING ENGINE
ENGINE COOLANT TEMPERATURE ABOVE 154"F (68'C)
Evaporative Emission (EVAP) Controls
Description:
The evaporative emission controls are designed to minimize the amount of fuel vapor escaping to the atmosphere. The
system consists of the following components:
A. Evaporative Emission (EVAPI Control Canister
An EVAP control canister is used for the temporary storage of fuel vapor until the luel vapor can be purged from the
EVAP control canister into the enqine and burned.
B. Vapor Purge ConirolSystem
EVAP control canister purging is accomplished by drawing fresh air through the EVAP control canister and into a pon
on the intake manifold. The purging vacuum is controlled by the EVAP purge control solenoid valve.
C. Fuel Tank Vapor Control System
When fuel vapor pressure in the fuel tank is higher than the set value of the EVAP two way valve, the valve opens and
regulates the flow ot fuel vapor to the EVAP control canister.
'97 model:
EVAPPURGECONTROL
VALVEFromNo. 15BLK/ /ALTERNATORYEL I sP SENSOR r7.s At(in the under-dashfuse/relay box)
VARIOUSSENSORFEESH AIF
BLK
I
FUEI- TANK
(cont'd)
11-203
INTAKE MANIFOLD
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Emission Gontrol System
Evaporative Emission (EVAP) Controls (cont'dl
'98 - 0O models:
EVAPTHREE WAYVALVE
EVAPCONTROLCANISTERVENT SHUTVALVE
'EL/BLU ._^_-:.*,".. <3|ltAIS"o[..^,
1in the under-dashtuse/relay box)
FrofiBLK/WHT < NO. 15
GRN/BLK
BLU
EVAPBYPASSSOLENOID
EVAP PURGECONTROLSoLENOtOVALVE
L LT GRN/WHT ,
RED/YEL
MANIFOLD
VARIOUSSENSOR
EVAPTWO WAYVALVEVALVE
FUEL TANK
SLK
11-204
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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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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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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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