1997 HONDA CIVIC For

1.Install the ATF magnet and suction pipe collar in the
torque converter housing. if necessary.
lnstall the main seDarator plate and the two dowel
pins on the torque converter housang.
Install the ATF pump drive gear, ATF pump driven
gear and ATF pump driven gear shaft on the torque
converter housing.
NOTE; Install the ATF pump driven gear with its
grooved and chamfered side tacing down.
ATF PUMP
ATF PUMP DRIVENGEAR SHAFT
ATF PUMPDRIVEN GEAR
Grooved and chamferedside taces separalorplate.MAIN SEPARATORPLATE
4.Loosely install the main valve body with five bolts.
Make sure the ATF pump drive gear rotates smoothly
in the normal operating direction and the ATF pump
driven gear shaft moves smoothly in the axial and
normal operating directions.
Install the secondary valve body, separator plate
and two dowel pins on the main valve body.
NOTE: Do not installthe bolts.
6. Install the control shaft in the housing with the con-
trol shaft and manual valve together.
7. lnstall the detent arm and arm shaft in the main
valve body, then hook the detent arm spring to the
detent arm,
SERVO SEPARATOR PLATE
DETENT
MANUAL VALVE
DETENT ARM SPRING
15.
14-177
a
10.
11.
Install the servo body and separator plate on the
secondary valve body ('95 - 98 models: seven bolts.'99 - 00 models: eight boltsl.
For '96 - 98 models: Install the servo detent base
and the ATF strainer (two boltsl.
For'99 - 00 models: Install the ATF strainer (one
bolt).
Tighten the five bolts on the main valve body to 12
N.m ('1.2 kgf.m,8.7 lbf.ft).
Make sure the ATF pump drive gear and ATF pump
driven gear shaft move smoothlY'
lf the ATF pump drive gsar and ATF pump driven
gear shaft do not move freely, loosen ths five bolts
on the main valve body, and disassemble the valve
bodies.
Realign the ATF pump driven gear shaft and reassem-
ble the valve bodies, then retighten the bolts to the
specified torque,
CAUTION: Fsilule to align tho ATF pump driven
goar shaft corr.ctly will rscuh in a s€ized ATF pump
drive goar or ATF pump d ven gear shaft.
Install the stator shaft and stop shaft.
Install the bolts and the shaft stop on the secondary
valve body, then tighten the bolts (three boltsl.
Install the torque converter check valve, cooler relief
valve and valve springs in the regulator valve body.
then install the regulator valve body on the main
valve bodv (one bolt).
Install the lock-up valve body on the regulator valve
bodv (seven bolts).
Install the ATF feed pipes in the main valve bodY,
the three ATF feed pipes in the secondary valve and
the four ATF feed pipes in the servo body. (cont'dl
12.
't 3.
14.
PUMP

Transmission
_\,]ffil
Reassembly (cont'd)
TRANSMISSIONHANGER
MAINSHAFTSUB.ASSEMBLY
*''
Ufln
$*U ./
TRANSMISSION HOUSINGMOUNTING BOLTS10 x 1.25 mm4{ N.m {4.5 kg{.m,33 lbI.ft)
TRANSMISSION HOUSING
REVERSE GEARCOLLAR
REVERSE GEAR
LOCK WASHER
SHIFT FORK
MAINSHAFT SPEEDSENSOR WASHER(D16Y7 engine)
MAINSHAFT
COUNTERSHAFTSUB.ASSEMBLY
OIFFER€NTIALASSEMBLY
SPEED
TRANSMISSIONHOUSING GASKET
TOROUE CONVERTERHOUSING
14-178

17.
18.
19.
lnstall the reverse idler gear and the gear shaft
holder (see page 14-175).
lnstall the differential assembly in the torque con-
verter housing.
Assemble the mainshaft sub-assembly and the
countershaft sub-assembly, then install them
together in the torque converter houslng
MAINSHAFTSUB-ASSEMBLY
20,
COUNTERSHAFTSUB.ASSEMBLY
Turn the shift fork so the large chamfered hole is
tacing the fork bolt hole, then install the shift fork
with the reverse selector, and tighten the lock bolt'
Bend the lock tab against the bolt head
SHIFT FORK
LOCK WASHERReplace.
6 x 1.0 mm4 N.m('l.4 kgl'm, 1O lbt'ft)
Large chamtered hole
21.
22.
lnstall the needle bearing, countershaft reverse gear
and reverse gear collar on the countershaft.
Align the spring pin on the control shaft with the
transmission housing groove by turning the control
shaft.
CONTROL SHAFT
Install the two dowel pins and a new gasket on the
torque converter housing.
Place the transmission housing on the torque con-
verter housing.
CAUTION: Make sure that lhe mainshaft speed
sensor is not installed on the transmission housing
before installing the transmission housing on the
torque conv€rter housing.
lnstall the transmission housing mounting bolts
along with the transmission hanger, then tighten
the bolts in two or more steps in the sequence as
shown.
TOROUE: ,l,t N'm l{.5 kgf'm, 33 lbf'ft}
TRANSMISSIONHANGER
24.
o
(cont'di
SPRING PIN
14-179

16. Install a new set ring on the end of each driveshaft'
17. Installthe right and left driveshafts (see ssction 16)
CAUTION: Whil6 installing the driveshafE in the
diffarential, be surs not lo allow du3t and othor for-
eign particl€s to enler into the transmission.
NOTE:
. Clean the areas where the driveshafts contact the
transmission (differential) thoroughly with sol-
vent or carburetor cleaner, and dry with com-
pressed air.
. Turn the right and left steering knuckle fully out-
ward, and slide each driveshaft into the differen-
tial until you feel its set ring clip engage the side
gear.
18. Install the damper fork, then install the rightand left
ball joints to the each lower arm with the castle nuts
and new cotter Plns.
DAMPER PINCH BOLT
10 x 1 .25 mma3 N.m l4.ia kgf.m,
32 tbl.ftl
4l
COTTERReplace.SELF.LOCKING NUT
12 x 1.25 mm
6il N.m t6.5 kgf'm, il7 lbf ftl
Replace.
19. Install the splash shield.
{5.0 - 6.0 kgf m, 36 - iB lbf'ft|
CASTLE NUT12 x 1,25 mm49 - 59 N.m
20. Connect the mainshaft speed sensor, the linear sole-
noid and the shift control solenoid connectors.
SHIFT CONTROL SOLENOIO LINEAR SOITNO|o
CONNECTOR CONNECTOR
6 r 1.0 mrn12 N.m (1.219f.m,
E.7 lbf.frl
CONNECTOR
21. Connect the countershaft speed sensor and the vehi-
cle speed sensor (VSS) connectors.
VEHICI..E SPEED
SENSOR CONNECTOR
COUNTERSHAFTSPEED SENSORCONNECTOR
(cont'dl
14-185

Cooler Flushing
!!!@ To prevent iniury to. face and eyas, always
-ea. safetv glasses ot a face shield when using the
transmission flusher.
NOTE: This procedure should be performed before rein-
stalling the transmission.
1. Check the tool and hoses for wear and cracks before
using. lf wear or cracks are found, replace the hoses
before using.
Using the measuring cup, fill the tank with 2'l ounces
(approximately 2/3 full) of biodegradable flushing
fluid (J35944 - 20). Do not substitute with any other
fluid. Follow the handling procedure on the fluid
contarner.
Secure the flusher filler cap, and pressurize the tank
with compressed air to between 550 - 829 kpa (5 6 -
8.45 kgflcm'. 80 - 120Psi).
NOTE: The air line should be equipped with a water
trap to ensure a dry air system.
Hang the tool under the vehicle.
Attach the tank's discharge hose to the return line
of the transmission cooler using a clamp.
Connect the drain hose to the inlet line on the trans-
mission cooler using a clamP
IMPORTANT:
Securely clamp the opposite end oJ the drain hose to a
bucket or floor drain.
TRAMtssroN
TRANSMISSION COOLERFLUSHER{Commcrci.llY avail.blel
Kent-Moore J384O5'Aor equivelent
NS
I
{r Water
7. With the water and air valves off, attach the water and
air suDolies to the flusher' lHot water if available.)
8, Turn on the flusher water valve so water will flow
through the cooler for 10 seconds.
NOTE; lf water does not tlow through the cooler, it
is completely plugged. cannot be flushed, and must
be replaced.
9. Depress the trigger to mix the flushing fluid into the
water flow. Use the wire clip to hold the trigger down'
While flushing with the water and flushing fluid for
two minutes, turn the air valve on for five seconds
everv 15 - 20 seconds to create a surging action'
AIR PRESSURE: MAX 845 kpa {8.45 kgf/cm', 120 psi)
Turn the water valve off. Release the trigger, then
reverse the hoses to the cooler so you can flush in
the opposite direction. Repeat steps 8 through 10'
12, Release the trigger, and rinse the cooler with water
onlv for one minute
13. Turn the water valve off, and turn off the water supply
14. Turn the air valve on to dry the system out with air
for two full minutes or until no moisture is visible
leaving the drain hose.
CAUTION: Residual mobturo in tho cooler or pipas
can damage the transmksion'
15. Remove the flusher from the cooler line. Attach the
drain hose to a contalner.
16. Install the transmission, and leave the drain hose
attached to the cooler line
{cont'd)
10.
'11.
14-187

Transmission
17.
Cooler Flushing (cont'dl
Make sure the transmission is in the E position.
Fill the transmission with ATF, and run the enginefor 30 seconds or until approximately 0.95 f (1.0 USqt.,0.8 lmp qt.) is discharged.
Remove the drain hose, and reconnect the coolerreturn hose to the transmission (see page l4-192).
Refill the transmission with ATF to the oroDer level(see page 14-118).
18.
19.
b
14-18A
TOOL MAINTENANCE
1. Empty and rinse after each use. Fill the can with waterand pressurize the can. Flush the discharge line toensure that the unit is clean.
2. lf discharge liquid does not foam, the orifice may beblocked.
3. To clean, disconnect the plumbing from the tank atthe large coupling nut.
ORIFICE
GRT{G
Remove the in-line filter from the discharge side andclean if necessary.
The fluid orifice is tocated behind the filter.Clean it with the pick stored in the bottom of thetank handle, or blow it clean with air. Securelvreassemble all Darts.
FILLER CAP

Continuously Variable Transmission (CVTI
Special Tools ................ 14-194
Description .................... 14-195
Clutches/Reverse Brake/Planetary
Gear/Pulleys .......... 14-198
power Flow ..............,..... 14-200
Electronic Control SYstem(,96 - 98 Modets) ......14-203
Electronic Control System
('99 - oo Models) " 14-205
Hydraulic Control '....... 14-208
Hydraulic Flow .'..-.....'... '14-212
Park Mechanism .....-...'.' 14-222
Eleqtrical Systom
Component Locations'96 - 98 Models """"""' 14-224,99 - 00 Modets ............. 14-225
TCM Circuit Diagram ('96 - 98 Models) ............. 14-226
TCM Terminal Voltage/Measuring Condiiions ('96 - 98 Models) '.... 14-228
PcM Circuit Oiaqram{A/T Control System: '99 - 00 Models} ...--.... 14-230
PCM Terminal Voltage/Measuring Conditions('99 - 00 Models)
A/4 Control System .'.'...14-232
Troubleshooting Procedures ... . .... .....',........."' '14-234
Symptom-to-ComPonent Chart
Electrical System - '96 - 98 Models ......'..... '14-234
Electrical System -'99 - 00 Models ..'....-..-. '11-210
Electrical Troubleshooting
Troubleshooting Flowcharts('96 - 98 Models) """'11-242
Troubleshooting Flowchart
('99 - 0O Modets) ...... 14-265
Linear Solenoids/lnhibitor Solenoid
Test ......................... . ...... 14-29f
Drive Pulley/Driven Pulley/Secondary Gear
Shaft Speed Sensors
Replacement .........'...... .14-292
Start Clutch Control
Start Clutch Calibration Procedure ....... ....,. 14-293
Hydraulic SYstem
Symptom-to-ComPonent Chart
Hydraulic System '.'.......14-294
Road Test ............................ 14-296
Stall Speed
Test......................... ...... 14-294
Fluid Level
Checking/Changing ....... 14-299
Pressure Testing ................. 14-300
Lower Valve BodY AssemblY
Replacement ..........,... 14-302
ATF Filter
Removal/lnstallation ..... 14-303
Transmission
Transmission
Removal ........... . 14-304
lllustrated Index
Transmission/Lower Valve BodY
Assembly ................. 14-308
Transmission Housing/Flywheel Housing ... 14-310
End Cover/f ntermediate Housing ..........'.'.... 14-312
Transmission Housing/Lower Valve Body Assembly
Removal ..........'.... .. " 14-314
Transmission Housing/Flywhesl Housing
Removal ................. ........ 1+316
End Cover/lntermediate Housing
14-318Removal .........,...............
Manual Valve Body
Disassembly/lnspection/Reassemblv .'.'.'..... 1 4-320
Forward Clutch
lltustrated Index ........................................ 14-321
Disassemblv .................. 14-322
Reassemblv , ,, . ',','......14-324
Secondary Gear Shaft
25 x 35 mm Thrust Shim Selection ..'.'....-... 14-324
Differential
lllustrated lndex ...,.....................,.,...-.-.-...'... 14-329
Backlash Inspection .-....14-329
Bearing Replacement ......'........'....'... ....'... 14-330
Differential Carrier Replacement ........'........ 14-330
Oil Seal Removal ........... 14-331
Oil Seal Installation/Side Clearance ....... . . 14-331
Flywheel Housing Input Shaft Oil Seal
Replacement .....,.... ...'.'.. 14-333
Transmission Housing Bearings
Driven Pulley Shaft Bearing
Replacenient ...................'. . ...................'.. 14-334
Secondary Gear Shaft Bearing
Reolacbment ...................... . .......... . ........ 14-335
Flywheel Housing Beating
Secondary Gear Shaft BearingReo1acement..................,........................... 14-335
Ring Gear Bearing
Replacement......... ........ 14-336
Control Shaft Assembly
Removal/lnstallation ....................'........... 14-336
Transmission
Reassembly .................. 14-338
Flywheel/Drive Plate .. . ...... . ...... ... . ....-.....'.'...14-341
Transmission
lnstalation ..................... 14-348
Cooler Flushing .'......... 14-352
shift cable
Removal/lnstallation....'........." """ 14-354
Adjustment .......'........ 14-355
Shift Lever ........................,. 14'356
Shift Indicator Panel
Adjustment ................ 14-357
ATF Cooler/Hoses
lnsta llation ......,,...... .... 14-357

Description
The Continuously Variable Transmission (CVT) is an electronically controlled automatic transmission with drive and driv
en Oullevs, and a steel belt. The CVT provides non stage speeds forward and one reverse. The entire unit is positioned in
line with the engine.
Transmission
Around the outside of the flywheel is a ring gear which meshes with the starter pinion when the engine is being staned.
The transmission has four parallel shafts: the input shaft, the drive pulley shaft. the driven pulley shaft, and the secondary
gear shaft. The input shaft is in line with the engine crankshaft. The drive pulley shaft and the driven pulley shaft consist of
movable and fixed face pulleys. Both pulleys are linked by the steel belt.
The input shaft includes the sun gear. The drive pulley shaft includes the forward clutch which mounts the carrier assem-
bly on the forward clutch drum. The carrier assembly includes the pinion gears which mesh with the sun gear and the ring
gear. The ring gear has a hub-mounted reverse brake disc.
The driven pulley shaft includes the start clutch and the secondary drive gear which is integral with the park gear' The sec-
ondary gear shaft is positioned between the secondary drive gear and the final driven gear. The secondary gear shaft
includes the secondary driven gear which serves to change the rotation direction. because the drive pulley shaft and the
driven oullev shaft rotate the same direction. When certain combinations of planetary gears in the transmission are
engaged by the clutches and the reverse brake, power is transmitted from the drive pulley shaft to the driven pulley shaft
to provide E, E, E, and El.
Electronic Control'96 - 98 Models:
The electronic control system consists of the Transmission Control Module (TCM), sensors, three linear solenoids, and a
inhibitor solenoid. Shifting is electronically controlled under all conditions'
The TCM is located below the dashboard, behind the kick panel on the driver's side.'99 - 00 Models:
The electronic control svstem consists of a Powertrain Control Module (PCM), sensors, three linear solenoids and an
inhibitor solenoid. Shifting is electronically controlled under all conditions. A Grade Logic Control System to control shift-
ing in E position while the vehicle is ascending or descending a slope.
The PCM is located below the dashboard, under the kick panel on the passenger's side.
Hydraulic Control
The lower valve body assembly includes the main valve body, the Pressure Low (PL) reguiator valve body, the shift valve
body, the start clutch control valve body, and the secondary valve body. They are positioned on the lower part of the
transmission housing.
The main valve body contains the Pressure High (PH) control valve, the lubrication valve, and the pitot regulator valve.
The secondary valve body contains the PH regulator valve, the clutch reducing valve, the start clutch valve accumulator,
and the shift inhibitor valve. The PL regulator valve body contains the PL regulator valve and the PH-PL control valve
which is ioined to the PH,PL control linear solenoid. The inhibitor solenoid valve is bolted on the PL regulator valve body.
The shift valve body contains the shift valve and the shift control valve. which is joined to the shift control linear solenoid.
The start clutch control valve body contains the start clutch control valve, which is joined to the start clutch control linear
solenoid. The linear solenoids and the inhibitor solenoid are controlled by the TCM or PCM. The manual valve body which
contains the manual valve and the reverse inhibitor valve, is bolted on the intermediate housing.
The ATF pump assembly is located on the transmission housing, and is linked with the input shaft by the sprockets and
the sprocket chain. The pulleys and the clutch receive fluid from their respective feed pipes, and the reverse brake receives
fluid from internal hydraulic circuit.
Shift Control Mechanism
Input from various sensors located throughout the vehicle determines which linear solenoid the TCM or PCM will activate.
Activating the shift control linear solenoid changes the shift control valve pressure, causing the shift valve to move. This
pressurizes the drive pulley pressure to the drive pulley and the driven pulley pressure to the driven pulley and changes
their effective pulley ratio. Activating the start clutch control linear solenoid moves the start clutch control valve. The start
clutch control valve uncovers the port, providing pressure to the start clutch to engage it(cont'd)
14-195
,!