1997 HONDA CIVIC Hydraulic system

ITEMMETRICENGLISHNOTESTEERINGSYSTEMTvpe P/sM/SOverall Ratio p/S
M/STurns, Lock-to Lock p/S
M/SSteering Wheel Dia.
Power assisted, rack and pinionRack and pinion1l.120.33.64..1380 mm 15.0 inSUSPENSIONTYPe Front and RearFront and RearIndependent double wishbone, coil springTelescopic, hydraulic nitrogen gas-filled
WHEELALIGN| 4ENTCamber FrontRearCaster F.ontTotalToe FrontRear
0.00,- 't'
1.40'ln 1 mm ln 1/16In 2 mm In 1/16EBAKE SYSTEMType FrontRea r
Pad Surface Area Front
Rea r
Parking Brake Type
Power assisted self adjusting ventilated discPower assisted self adiustjng solid discPower assisted sell adjusting dr!m37.5 cm'x 4 5.8 sq in x 4
44.1ctn,x4 ] 6.84sq-inxa
67.2 cmz x 4 | to.+ sq in ' I21.2 cm, x 4 3.3 sq in x 4Mechanical actuating, rear two wheelbrakes
5410 stamped onthe caliper body2056 stamped onthe caliper bodyDrumDisc
TIRESize and PressureSee lire intormation label
WASHERCapacity 2door Coupe/4,door Sedan
2,door Hatchback
2.5 f (2.6 LJS qt, 2.2 lmp qt)4.5 | (4.8 US qt,4.0lmp qt)2.51 (2.6 US qt, 2.2 lmp qt)4.5 f (4.8 US qt, 4.0 lmp qt)
USA modelCanada modelDXExcept DXELECTRICALBafteryStarterAlternatorFuses In Under dash Fuse/Felay BoxIn Under-hood Fuse/Belay 8oxIn Under hood ABS FLrse/Relay BoxHeadlightsFront Turn Signal/Parking LightsRear Turn Signal LaghtsBrake/TaillightsInner Taillights*,High Mount Brake LightBack up LightsLicense Plate LightsCeiling Light
Trunk LightsGauge LightsIndicator Lightslllumination and Pilot LightsHeater Control Panel Lights
12 V 38 AH/5 HR12 V 1.0 kW, 1.2 kW12V 75 A,80 A7.5 A, t0 A, 15 A, 20 A7.5 A, 10 A, 15 A, 20 A, 30 A, 40 A, 80 A7.5 4.20 A, 40 A12V_60/55W12V -2115W
12V - 21W12V - 21/5W12V-5W12 V 18 W*" 21 W+" *3
12V 21W12v-5wl2V-8W(Withmoonroofl12 V - 5W (Without moonroof)
12V-1.4W,3W't2 v 1.12W. 1.4 W12v-0.84w, 1.4 W12V 1.4 W
Design Specifications
(cont'd)
P/S: Power Steering M/S: Manual Steering*l: 2-door Coupe *2: 2door Hatchback *3: 4-door Sedan*4: USA (HAM), Canada (HCM) produced *5: Japan produced
3-22
L'

lllustrated Index
\
NOTE:
. Whenever the transmission is removed, clean and grease the release bearing sliding surface
. lf the parts marked with an asterisk (*) are removed, the clutch hydraulic system mustbe bled (seepage 12-6)
. Inspect the hoses for damage, leaks, interference, and twisting
'RESERVOIF TANK
ASSIST SPRING
LOCK PIN
5x1,0mm9.8 N.m (1.0 kgf.m,7.2 tbtftl*CLUTCH LINE15 N.m {1.5 kgJ m,11 tbt.ft)
RELEASE BEARINGRemoval/lnspection, page 12-1 1Installation, page 12-'12
*CLUTCH MASTER CYLINDERRemoval/lnstallation, page 12 5
6x1.0mm9.8 N.m (1.0 kgf.m,7.2 tbf.ft)
FLYWHEELInspectaon, page 12IReplacement, Page 12-9
CLUTCH DISCRemoval/lnspection, page 1 2-8
lnstallation, page 12-'10
'12 x 1.0 mm118 N.m {12.0 kgt'm,86.8lbfft)
PBESSURE PLATEBemoval/lnspection, page 12 7Installation, page 12''10
8 x 1.25 mm22 N m (2.2 kgf.m, 16lbf ft)
ISLAVE CYLINDERRemoval/lnstallation, page 12_6
12-3

Glutch Master Gylinder
IRemovaUlnstallation
CAU'NON:
. Do not sDill brake lluid onthevehicle;it may damage
the paint; if brake fluid does contact the paint, wash
it off immediatelY with water.
. Plug the end ofthe clutch line and reservoir hos€ with
a shop towelto prevent brake tluid from coming out
1. The brake tluid can be removed from the clutch
master cylinder reservoir with a syringe
2. Disconnect the clutch line and reservoir hose from
the clutch master cylinder.
19N.m 11.9 kgf.m,14 tbf.ttl
[.
3. Pry out the lock pin, and pull the pedal pin out
the yoke. Remove the nuts
NUTS8 x 1 .25 mm13 N.m {'1.3 kgt.m,9.4lbf ft)
)
of
CLUTCH LINE
iffi,
4. Remove the clutch master cylinder.
CLUTCH MASTER CYLINDER
lnstall the clutch master cylinder in the reverse
order of removal.
NOTE: Bleed the clutch hydraulic system {see page
12-61,
12-5

Slave Gylinder
Removal/lnstallation
CAUTION:
. Do not spill brake tluid on the vehicle; it may damage
the paint; if brake fluid does contact th€ paint, wash
it off immodiatoly with water,
. Plug the end ot the clutch line with a shop towel to
prevsnt brake fluid from coming oul.
-61'srp", High Temp Urea crease (p/N
08798 - 90021.
: Brake Assembly Lube or equivalent rubber
grease.
1. Disconnect the clutch line from the slave cvlinder.
2. Remove the slave cylinder from the clutch housing.
12-6
3. Install the slave cylinder in the reverse order of
removal.
NOTE: Make sure the boot is installed on the slave
cvlinder.. CLUTCH LINE15 N.m (1 .5 kgf.m, 1 1 lbf.It)
SLAVE CYLINDER
-G4(P/N 08798- 90021
8 x 1.25 mm22 N.m 12.2 kgl.n,16 lbl.lt)
:^..:i!!!!! :l
(Brak€ AssemblyLubol
Bleed the clutch hydraulic system.
a Attach a hose to the bleeder screw, and suspend
the hose in a container of brake fluid.
. Make sure there is an adequate supply of fluid at
the clutch master cylinder, then slowly pump the
clutch pedal until no more bubbles appear at the
bleeder hose.
. Refill the clutch master cylinder with fluid when
done.
. Always use Genuine Honda DOT 3 Brake Fluid.
Using a non-Honda brake fluid can cause corro-
sion and decrease the life of the system.
. Confirm clutch operation, and check for leaking
flu id.

Automatic Transmission
Special Tools ......... .....'."".'-.-.' 14'2
Description .,....................-...... 14-3
power Flow ......,................. 14"6
Elestronic Control System .... . ................'..'.'.. 14-13
Hvdraulic Control .....'......" 1'l-19
Hydraulic F|ow...... .'.'.".'....11-21
Lock-up System '............ ... t/t'33
Electrical System
Component Locations....,.............'......'.............'.,. 14'39
PCM Circuit Diagram
lA/T Control Syst€m: '96 - 98 Models) .........'.. 1/t-40
PCM Tarminal Volt8ge/Measuring Condhions
{'96 - 98 ModeblA/T Control System ............
PCM Circuit Disgram(A/T Conlrol System: '99 - 00 Modsls) '..........' 14-44
PCM Terminal Voltage/Measuring Conditions('99 - 00 Models)A/T Control System ...
Troubleshooting Proceduros ....
Symptom-to-ComPonent Chari
Efectricaf SFiem - '96 - 98 Models '..-.-..."'.'..11-52
Eloqtrical System -'99 - 00 Modols ... .........". 1+54
EleclricatTroubl$hooting ('96 - 98 Models)
Valve Body
Repair .................... ........'.... 14-139
Valve
Assembly
ATF Pump
1,1-1i10
Inspection ...........'.......... 14-141
Main Valvs Body
Disass€mbf y/lnspoction/R.sssembly .'.'.'.'.. -. -. 1 1-1 12
Secondsry Valve BodY
Disa$embfy/lnspoction/Rsassembly ......'.'.'.'. 11-111
Regulator Valve Body
Disa$embly/lnspoction/Rea3sembly ..........'... 14-1{5
Servo Body
Disassombly/lnsp€ction/Reassembly .".'........ 14-146
Lock-up Valv6 Body
Dis$s.mbf y/ln3poction/Rea$embly .'.. -. -..'.'.' 1 1-1 17
Mainsh!ft
Dkassembly/lnep€ction Reassembly ..'...'........ 14'148
Inspoction .............'..........'. l it-149
Countsrshaft
Disa$embly/lnspeqtion/Rea3sembly .......'...'.. 1a-l51
Dba$ombly/Re$s.mblY11-152
til-46
I rl-48
Troubleshooting Flowcharts
Electrical Troubleshooting ('9!t - 00 Models)
Troublsshooting Flowchart3
Lock-up Control Solenoid vslvo A/B AssemblY
RePlacoment
Shift Cont.ol Solenoid Valve A/B A3sembly
Inspestion
Ona-way Clutch
Disassembh/lrupoction/Rca$embly .. "'........ l4-155
Clutch
lllustlttcd Ind.x {A48A, B4RA Transmlssion) ..' 14-156
tustr.tod Index (MrnA Transmi$ionl ............ til-158
...................... 14-153
L
14-56
1+81'
14-105
1+105
Replacoment ......
Mainshaft/Countorshaft Spo€d Sonsors
Replacemsnt ......'."'........... lit'108
Hydraulic System
Symptom-to-Componeni Chart
Hydraulic Sydemr+109
t4-113
1+116
11-117
Rea$emblY
14-106 Difforrr ial
llhdraied Index........ t4-156
B.ckhrh ln3poction. 14-167
Boaring Roplacemont..-..........11-167
..... 14-108 Diftrrsniial Carrior Repl8cemeni .'.-.............'...' lil-168
Oil Sall Romovalt4-t 59
Oil Soal ln3tallstion/Sidc Clearance'......'.....'... 1'l'169
Torqua Convertcr Housing Boarings
Mlin3haft Besring/Oil Scal Roplac.ment ."..'.. lil-172
Counio6hatt Betring R.plscem.nt ..'...... ....... 14-173
Test.....,......14-106
14-107
14-160
11-162
11-171
11-175
Replacement
Test .....,.,..........
Road Te3t
Linear Solenoid AsssmblY
Stall Speed
lllustrated Indax
Transmission/End Cover'. ....
Transmission Hou3ing,.............'.'......'....""..-.-.. 11-128
Torque Conve.ter Housing/Valvo Body ........... 14-130
End Cover
14-itB Park Stop
1+119 In3pection/Adiustmsnt...'......'.'............'...."""'14-175
Transmbgion
Reassombly
11-122 Torquo Convertet/Drivr Plsie ............'.'............'.. . l4-182
Transmission
11.726 Inrtallation
Tranlmission Housing Boarings
Msinsh.ft /CounteEhaft Bearings
B!pltcomgnt
Rcvo.3s ldlor Gear
lnrtallation
Cooler Flushing ..
Shift Cabls
Test
Fluid Level
Checkin9 .........."..'.'.....
Changing
Pressure Testing
Transmission
Transmission
Rgmoval ..
lil-176
.'..........'.'.'..... 1'l-183
.... lil-187
11-132Adiustmont
RemovaUlnttallation1,1-190
lit-191Transmisgion Housing
Removal ... '.'...... ......'..... 14-l3il
Tolque Convgrter Housing/valvs Body
Rsmoval .........,...... ............. 14-136
Valve CaDs
Description .......'................. t 4'138
Shift lndicator Panel
Adiu3tmant ..'.................. 14-192
ATF Coolor Hoses
Connection ..,............,.,....... l'l-192
Shift Lever .,........

Hydraulic Control
The hydraulic control system is controlled by the ATF pump, valves, accumulators, and electronically controlled solenoids'
TheATFpUmpisdrivenbysp||nesontheendofthetorqueconverterWhichisattachedtotheengine.F|uidfromtheATF
pumpf|owsthroughtheregu|atorva|vetomajntainspecifiedpressurethroughthemainva|vebodytothemanuaIva|ve'
directingpressuretoeachofthec|utches.Theva|vebodyinc|udesthemainvaivebody,theregu|atorvalvebody,the
|ock-upva|vebody,thesecondaryVa|vebody,theservobody,theIinearso|enoid,theshiftcontro|so|enoidva|velVB
assembly, and the lock up control solenoid valve A/B assembly. The shift control solenoid valve Ay'B assembly and the lin-
ear 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
SHIFT CONTROLSOLENOIO VALVE A/8
ASSEMBLY
LINEAR SOLENOID
SERVO BOOY
REGULATORVALVE BODY
VALVE
VALVE BOOY
(cont'd)
CONTROLSOLENOID VALVE A/BASSEMBLY
ATF PUMP GEARS
14-19

Description
Hydraulic Control (cont'dl
Regulator Valve
The regulator valve maintains a constant hydraulic pressure from the ATF pump to the hydraulic control system, whitealso furnishing fluid to the lubricating system and torque converter. The fluid from the ATF pump flows through B and 8,.The regulator valve has a valve orifice. The fluid entering from B flows through the orifice to the A cavity. This pressure ofthe A cavity pushes the regulator valve to the right side, and this movement of the regulator valve uncovers the fluid portto the torque converter and the relief valve. The fluid flows out to the torque converter, and the relief valve and regulatorvalve moves to the left side. According to the level of the hydraulic pressure through B, the position of the regutator vatvechanges and the amount of the fluid from B' through D and c also changes. This operation is continued. maantaining theline pressure,
NOTE: When used. "|eft" or "right" indicates direction on the illustration betow.
ENGINE NOT RUNNING
TOROUE CONVERTER
ENGINE RUNNING
To TOROUE CONVERTER Lubrication
Stator Roaction Hydraulic Prossur6 Control
Hydraulic pressure increases according to torque, are performed by the regulator valve using the stator torque reaction.The stator shaft is splined with the stator in the torque converter, and its arm end contacts the regulator sprang cap. whenthe vehicle is accelerating or climbing (Torque Convert€r Range), the stator torque reaction acts on the stator shaft, andthe stator arm pushes the regulator spring cap in the direction of the arrow in proponion to the reaction. Jne stator reac-tion spring compresses, and th€ reoulator valve moves to increase the line pressure which is regulated by the regulatorvalve. The line pressure reaches its maximum when the stator torque reaction reaches its maximum.
STATOR SHAFT ARM
REGULATOR VALVE
14-22
STATORATOR SHAFT ARM
SPRING CAP

Description
Lock-up System (cont'd)
TOROUE CONVERTER
In B.rl position, in 3rd and 4th, and lDl_- position in 3rd.pressurized fluid is drajned from the back of the torqueconverter through a fluid passage. causing the lock-uppiston to be held against the torque convener cover. Asthis takes place, the mainshaft rotates at the same speedas the engine crankshaft, Together with the hydrauliccontrol, the PCM optimized the timing of the lock_upsystem. Under certain conditions, the lock_up clutch isapplied during deceleration, in 3rd and 4th gear.
The lock-up system controls the range of lock_up accord_ing to lock-up control solenoid valves A and B. and thelinear solenoid. When lock-up control solenoid valves Aand B activate, modulator pressure changes. Lock_upcontrol solenoid valves A and B and the linear solenoidare mounted on the outside of the torque converterhousing. and are controlled by the pclvl.
Lock-up Conditions/Lock-up Control Solenoid Valves/Linear Solenoid Pressure
MODULATOR PRESSURE
.-- LINEAR SOLENOID PRESSURE
LOCK.UP CONTROL. VALVE
LOCK.UP CONTROLSOLENOID VALVELock-up
Conditions
Lock-up Control
Solenoid ValveLineal
Solenoid
PressureAB
Lock-up OFFOFFOFFHig h
Lock-up. HalfONDuty operation
OFF - ON
Lock-up. FullONONHigh
Lock-up
during
decelerationONDuty operation
OFF * ONLowTOROUE CONVERTERCHECI( VALVE
RELIEF VAI-VE
LOCK.UP TIMINGVALVE
^ r______rr r cooLER RELTEF VALVE
t'-
14-34
ATF PUMP