1996 HONDA CIVIC air valve

Emission Control System
Evaporative Emission (EVAPI Gontrols (cont'd)EVAP BYPASSSOLENOID VALVEY
(From page l1'291)
Check for a short in the wire{2WBS linel:Disconnect the 2P connector {romthe EVAP bypass solenoid valve.
Does the valve hold vacuum?
Repair short in the wire betweenEVAP bypass solenoid velve andrhe ECM/PCM {A3).
Ooes the valve hold vacuum?
Check the EVAP bvpr$ 3olenoid
1. Turn the ignition switch OFF.2. Connect ECM/PCM connectorterminal A3 and body groundwith a jumper wire.3. Turn the ignition switch ON (ll).Ch€ck lor an op.n in the wirellcl linol:1. Turn the ignition switch OFF.2. Disconnect the 2P connectorfrom the EVAP bypass sole-noid valve.3. Turn the ignition switch ON (lll.
4, Measure voltage between theEVAP bypass solenoid valve2P connector terminal No. 1and body ground.
Does the valve hold vacuum?
Repair open in the wir6 b€tw€€nEVAP purg6 control 3olanoid valveand the No. 15 ALTERNATOR SPSENSOR {7.5 A) Iuse.
Wire side ol female terminals
EVAP SYPASS SOLENOIOVALVE 2P CONNECTOR IC793}
tG1{BLK/WHT)
Wire side offemaleterminals
{To page 11 293)
11-292
(To page 11 293i

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 .,........

Electrical Troubleshooting (,96 - gg Models)
Troubleshooting Flowchart - Lock-up contror sorenoid Varve A
Po$ible Cau3e
. Disconnecled lock-up controlsolenoid valvo A connector. Short or open in lock-uD controlsolenoid valv€ A wire. Fauliy lock-up contlol solonoidvalve A
PCM CONNECTORS
Wire side of female terminals
. OBD ll Scrn Toot indicates CodeP1753.. Self-diagnosis @ indicatorlight blinks once.
Check for a Short to Powo.:1. Turn the ignition switch OFF.2. Disconnect the A (32p) and B(25P) connsgl6ps 1rq- thaPCM.3. Turn the ignition swjtch ON 0t).4, Measure the voltage betweenthe 85 and Ag or A22 terminals.
Repair shoit to power in the wirebetw€en the 85 terminal and thglock-up coDtrol tolenoid valve A.
Mea3ure Lock-up Control Sole-noid Valve A RGislance:'1. Turn the ignition switch OFF.2. Measure the resistancebetween the 85 and A9 or A22terminals.
Check lor looso PCM conn€ctoB.lf nece$.ry, substituto a known-good aolonoid valve ass€.nblv olPCM end rech6ck.
ls the resistance 12 - 25 O?
NOTE: Record allfreeze data before you troubleshoot.
A l32P)
To page'14-57

From page 14-56
Ch6ck Lock-up Control Solenoid
Valve A tor a Short Cilcuiti
1. Disconnect the 2P connector
lrom the lock-up control sole-
noid valve assemblY.2. Check for continuity between
the 85 and Ag or A22 termi-
nats.
Ropair 3hort to giound in iha wila
b.twoqn th6 85 terminrl rnd tho
locl-up control 3olanoid valvo A.
Mo..ura Lock-up Control Sole'
noid Velve A Reri3tanc. at tho
Solenoid Conn6cto.:Measure the resistance betweenthe No. 2 terminal of the lock-up
control solenoid connector and
body ground.
Chock for opan in tha wit.
ba(w.an tha 85 torminll lnd the
lock-uo control lolanoid vtlYa A.ls the resistance 12 _ 25 O?
Roplsce tho lock"up cont.ol 3ol€_
noid vllvo arsembly.
PCM CONNECIOBS
Wire side of lem6leterminals
LOCK.UP CONTROLSOrINOID CONNECTOR
YEL
Teaminal side of malo terminals
lml-,f
(o)
I
14-57

Electrical Troubleshooting ('96 - 98 Modelsl
Troubleshooting Flowchart - Shift Gontrol Solenoid Valve A
Po$ible Cau3e
. Disconnected shift controlsolenoid valve A connector. Short oi open in shift controlsolenoid valve A wire. Faulty shirt control solenoid
PCM CONNECTORS
' OBD ll Scan Tool indicates CodeP0753.. Sett{iagnosis E indicator lightblinks seven tim6.
Check tor a Short to Power:1. Turn the ignition switch OFF.2. Disconnect the A (32P) and B{25 Pi connectors trom thePCM.3. Turn the ignition switch ON {ll).4. Measure the voltage betweenthe 83 and A9 orA22 terminals.
Repair short to powe. in the wir6between the 83 terminal .nd theshift control solonoid valvo A.
Moa3ure Shift Control SolenoidValve A Resistanc€:1. Turn the ignition switch OFF.2, Measure the resistancebetween the 83 and A9 or A22terminals.
Ch€ck for loose PCM connectors.lf n€c6srry, subatitute a known-good solenoid valve a3,sembly orPCM end rocheck.
ls the resistance 12 - 25 0?
NOTE: Record all freeze data before you troubleshoot.
A t32Pl
To page 14-65
Wire side ol female terminals

Electrical Troubleshooting ('96 - g8 Modelsl
Troubleshooting Flowchart - Shift Control Solenoid Valve B
Possible Cause
' Disconnected shift controlsolenoid valve I connectol. Short or open in shift controlsolenoid valve B wire. Faulty shift control 30lenoidvalve B
PCM CONNECTORS
Wire side ot female terminals
. OBD ll Scan Tool indic.tes CodeP0758.. Solt-diagnosis E indicator lightblinks eight times.
Chock for a Short to Power:1. Turn the ignition swatch OFF.2. Disconnect the A (32P) and B(25P)connectors from the PCM.3. Turn the ignition switch ON (ll).4. Measure the voltage betweenthe 811 and Ag or A22 termi-nals,
Repair short to powar in the wirebotwcen the 811 torminal andthe shift control solenoid valve 8.
Measure Shift Cont.ol SolenoidValve B Resktance:1. Turn the ignition switch OFF.2, Meas u re the resistancebetween the Bll and A9 orA22 terminals.
Checl for loose PiCM connector3.lf nec€ssary, sub3titute a known-good solenoid v.lve assembly olPCM and recheck.
ls the resistance 12 - 25 O?
NOTE: Record allfreeze data before you troubleshoot,
A t32P)
To page 14 67
\

Electrical Troubleshooting ('96 - 98 Models)
Troubleshooting Flowchart - Lock-up Control System
NOTE: Record all freeze data before vou troubleshoot.
Possible Cause
Faulty Lock-up cont.ol system
NOTE: Do not continue with this troublesnoonnoother DTCS have been corrected.until the causes of any
. OBD ll Sc6n Tool indicatG Codem7{0.. Self-diagnosis E indicator lightindicates Code 40.
Check tor Another Code:Check whether the OBD ll scantool or the E indicato, lightindicates another code.
Perform lhe Troublo3hooiingFlowchart tor the indicatedCode(s). Recheck for cod. P07il0lilol aftor iroubl€3hooting.
Does the OBD ll scan tool orthe E indicator light indicateanother code?
Tast Line Pressure:Measure the line pressure (seepage 14-119 and 14-120).
Repair tho hydreulic aystem a3necessary {3ee page 14-119).
Replace the Lock-up ControlSolenoid Valve Assembly andR6check;1. Beplace the lock up controlsolenoid valve Ay'B assembly(see page 14-105).2. Turn the ignitaon switch OFFand reset the PCM by removing the BACK UP (7.5 A) fusein the underhood fuse/relaybox for more than 10 seconds,3. Using the scan tool, check tobe sure that the engine coolant temperature is in 176'F(80'C) and above.4. Drive the vehicle at 55 mph(88 km/h) constantly for morethan one minute.5. Recheck for code P0740 (40).
Does the OBD ll scan toolindicate code P0740 {40)?The systom k OK at this time.
l'.
14-74

Troubleshooting Flowchart - Shift Control System
NOTE: Record all freeze data before vou troubleshoot.
Possible Cause
Faulty shift control system
. OBD ll Scan Tool indicates CodeP0730.. Sell-diagnosis E indicator
light indicates Code ill.
Check tor Another CoderCheck whether the OBD ll scantool or the E, indicator lightindicate another code.
Perlorm ths TroubleshoolingFlowch.rt for the indic.t.dCode(sl. Recheck tor code m730
l4'l I atter troubleshooting.
Does the oBD ll scan tool orthe E indicato'. tight indicate another code?
Test lst, 2nd, 3rd and 4th Clutch
Pressure:Measure the 1st, 2nd, 3rd and 4th
clutch pressure (see page 14119
thru 14-121).
Ropair the hydrlulic systom !snecessary {see page 14-1 19 and11-1211.
ls each clutch pressure within
the service limit?
Replace Shift Control Solenoidvalve Assembly, Linear SolenoidAssambly and Rechock:1. Replace the shift controlsolenoid valve A'/B assembly(see page 14-106).2. Replace the linear solenoidassembly lsee page 14 108).3. Turn the ignition switch OFFand reset the PCM memory byremoving the EACK UP (7.5 A)tuse in the under hood fuse/relay box for more than l0
seconds,4. Drive the vehicle at over 12mph (20 km/h) in 1st, 2nd,3rd
and 4th gear for more than 30seconds at P1 position.
5. Recheck tor code P0730 (41).
Does the OBD ll scan tool orthe Ed indicator tight indi
cate code P0730 {41)?
The swt6m is OK et this time.
NOTE: Do not continue with this troubleshooting until the causes ot any
other DTCS have been corrected.