1998 HONDA CIVIC Body electrical

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,96 D16Y5 engine,,96 D16r,gngino,,96 Dt6Y8 engine {3edan)' 37 D16Y5 engino..97 D16r, engine {coupe: KA, Kc mod-
els. sedan: KA, KC, KL {DX} models. hatchback: all modols}''97 Dl6Y8 ongine (s€dan: KA' KC mod€lsl:
The scan tool indicates Diagnostic Trouble code (DTC) P0441: Evaporative Emission (EVAP) control system
insufficient purge flow.
Description
By monitoring the purge line vacuum with the MAP sensor, the ECM/PCM can detect insufficient EVAP control system
purge flow.
Possible Cau3e
. EVAP Purge Control Solenoid Valve
. EVAP Purge Control Solenoid Valve Circuit
. EVAP Control Canister
. Vacuum Lines
. ECM/PCM
Troubl93hooting Flowchart
Wire side of femaleterminals
EVAP PURGE CONTROI-sottNotD vALvE 2P
CoNNECTOR (Cl1al
r-+-r
I'l'l
lG-ro.*l'rr"r
O)
Y
(cont'd)
11-271
- The MIL has bsGn.eportad on.- DTC milal k rtored.
Pioblem vsrificJtion:1. Start the engine. Hold the
engine at 3,000 rPm with no
load {in Park or noutral) until
the radiator fan comes on.
2. Do the ECM/PCM Reset Proce'
dure,3. Connect the SCS service con-
nector.4. Test-drive under following con-
ditions on the road- Without any electrical load- A/T in E or E Position(M/T in 3rd-sth gear)- Engine sPeed betweon
1,200 - 2.400 rpm.- Decelerate {rom 50 mph (80
knl/h)to 15 mph (24 km/h)lntormittont lailuro, sFtorn b OK
at thi. timo. Ch€ck tor Poor con'
ncction3 or looac wir.3 at C144
{EVAP purgo control tolonoid
vrtv.l .nd ECir/FCttl.
ls DTC P0441 indicatod?
Ch.ck fo. !n op€n in the wiro l|(illinel:1. Turn the ignition switch OFF.
2. Disconnect the EVAP Purgecontrol solenoid valve 2P con_
neclor,3. Turn the ignition switch ON (ll)
4. Measur€ voltage between bodyground and the EVAP Purgecontrol solenoid valve 2P con-
nector terminal No 1.
Rop.ir opor in tho wir6 b€two€n
the EVAP purgo codtiol tolonoid
v.lvo rnd tho No 15 ALIERNA'
TOR SP SENSOR 17.5 A)lu.o.
{To page 11-272)

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Fuel Tank Pro3sure sensor 196 D16Y8 engine (coupe).'97 D15Y7 engine {coupe: KL model, sedan: KL (LX) modeu,'97
D16Y8 engine (coupe: all models, sedan: KL model, '98-all models) '99 - 00 D16Y5 engine with M/Tl:
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PTANK
{LT GRNI
vcc2(YEL/BLU}
Wire side oI female terminals
FUEL TANKPRESSURE SENSOR3P CONNECTOR (C7921
sG2IGRN/8LK)
Foc2l::il":"toolindicatesDiagnosticTroublecode(DTc)P0452:A|owvo|tageprob|emintheFue|TankPressure
The fuel tank pressure sensor converts fuel tank absolute pressure into electrical signals and inputs the EcM/PCM.
OUTPUTVOLTAGEtvt4.5
-? kPa(-50 mmHg,-2 in.Hg)
ECM/PCM CONNECTOR O I16P)
Wire side of female terminals
+7 kPs150 mmHg,2 in.Hg)
PRESSURE
(cont'd)
11-275
- The MIL has been reported on- DTC P0452 is stored.
Check the vacuum lines:
Check the vacuum lines of the
fuel tank pressure sensor for mis-
routing, leakage, breakage and
cloggrng.
Are the vacuum lines OK?
Problem v€ritication:1. Do the ECM/PCM Reset Proce
dure.2. Remove the luel fill caP.
3. Turn the ignition switch ON lll)4. Monitor the FTP Sensor volt_
age with the Honda PGM
Tester, or measure voltage
between bodY ground and
ECM/PCM terminal Dl5.lntermittent tailuro, sYstem i5 OK
dt this timo. Chock for Poot con-
neciion3 or loose wir* at C131
llocatod under right side ot dashl,
C4O1 (located .bove under'da3htuso/ielay box), C574 1C568)*
{located under acc€ss Panell.C792 lfuel tank pressule sen3or)
and EcM/PCM.
ls there approx. 2.5 V?
Check tol an op€n in wite (VCC2
line):1. Turn the ignition switch OFF
2. Reinstallthe fuel fill caP.3. Disconnect the fuel tank Pres'sure sensor 3P connector-4. Turn the ignition switch ON (ll)
5, Measure voltage between the
fuel tank pressure sensor 3P
connector No. l terminal and
No. 2 terminal.
Repair open in the wite betweenthe fuel tank Pr€s3ure a€n3or andth6 EcM/PcM (D1ol.ls there approx. 5 V?
(To page 11'276)

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'99 - 00 models excepi Dl6Y5 engine with M/T:
The scan tool indicates Diagnostic Trouble Code (DTC) P0452: A low voltage problem in the Fuel Tank Pressure
sensor.
The fuel tank pressure sensor converts fuel tank absolute pressure into electrical signals and inputs the ECM/PCM
OUTPUTVOLTAGE(vlt.5
0.5-7 kP.(-g) mmHg,-2 in.Hgl
+7 kP.
150 mmHg,2 in.Hgl
PRESSURE
I
Wire side of lemale terminals
FUEL TANKPRESSURE SENSORSUB.HARNESS6P CONNECTOR (C574 (C568)rl
vcc2(YEL/BLUIsG2{GRN/BLK}
Wire side o{ temale terminals
The MIL has been .eported on.
DTC P0452 is stored
Check the vacuum lines:
Check the vacuum lines of the
fuel tank pressure sensor lor mis-
routing, leakage, breakage and
cloggrng.
Are the vacuum hnes OK?
Problem veritication:1. Do the ECM/PCM Reset Proce-
du re,2. Bemove the fuel fill caP.
3. Turn the ignition switch ON {ll)
4. Monitorthe FTP Sensor voltage
with the Honda PGM Tester' or
measure voltage between body
groLrnd and ECM/PCM connec_
tor terminalA29.
lntermitlent tailure, 3Ystem b OK
at this time. Check for Poor con'
nections or loose wire3 at C131
{located under right side of dash},
C401 {located above under'dash
tuse/relay box), C574 (C568)*
llocdted under access Panel),C792 (tuel rank Prcssure sensorl
and ECM/PCM.
ls there approx.2 5 V?
Check for an open in wire {VCC2
line):1. Turn the ignition switch OFF.
2. Reinstall the ltrel fill caP
3, Remove the access Panel from
the floor.4. Disconnect the fuel tank Pres'sure sensor sub-harness 6P
5. Turn the ignition switch ON (ll).
6. At the access Panel side, mea_
sure voltage between the fuel
tank Pressure sensor sub-nar-
ness 6P connector No 5termi
nal and No. 6 termlnal.
Repair open in tho wire between
th6 fu€l tank Prossuro sen3oa and
the ECM/PCM lc28).ls there approx 5 V?
ECM/PCM CONNECTOR A (32P)
PTANK {LT BLUI
I
ll
(To page '11-278)
(cont'd)

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 ('gO - 98 Modelsl
Troubleshooting Flowchart - Countershaft Speed Sensor
Po$iblo Causa
' Loosg or laulty conncctionbotwocn tho PCM and c.i hrr-n1't!' Disconnoctad countorahottlpo€{ san3or oonnoctot. Short or opon in countorshaftspeed lonsor wire. F ulty counte.lhalt spe6d s6n-sol
COUNTERSHAFT SPEED SENSORCONNECTOR
lFI,]1-F=r
9l
L_l
Terminal side ol male terminals
PCM CONNECTOR B I25P}
1
l'
NOTE; Record allfreeze data before you troubleshoot.
. OBO ll Scln Tool indicat6 Codem7z).. S6lt-dirgnosis E indic.tollight blink! nin. tim6,
ls the countershaft spoed sensorinstalled properly?
Moa3ure CountoEhaft Sp€ed S6n-sor Reaktanc€ at tho Son3or Con-noctor1. Disconnect the 2P connectortrom the countershaft spgedsensor connector,2. Measure the resistance of thecountershaft sDeed sensor,
ls the resistance 400 - 600 0?
Chock Countersh.ft Spood Scr|3olfor a Shoft Circuit:1. Disconnect the B {25P) connector from the PCM.2. Check for continuity betweenthe body ground and the 823terminal and 822 terminalindividually.
Repai. .hort in th. wiroa b.t$re€ntho 823 lnd 822 torminals .ndlho counteBhaft lpocd aenro..
To page 14-69
4-68
Wire side of temale terminals

Electrical Troubleshooting ('96 - 98 Modelsl
Troubleshooting Flowchart - Mainshaft Speed Sensor
NOTE: Record all freeze data before you troubleshoot.
Po$ible Cause
. Disconnect€d mainshaft sD€edSensor @nnoctot. Short or open in mainshattsJt€ed s6nsoa wire. Faulty mainshaft lpeed s6nso.
NOTE: Code P0715 (15) on the PCMdoesn't always mean there's an electricalproblem in the mainshaft or countershaftspeed sensor circuit; code P0715 (15)may also indicate a mechanical problemin the transmission.
MAINSHAFT SPEEOSENSOR CONNECTOR
Terminal side of male terminals
PCM CONNECTOR B I25PI
. OBD ll Scan Tool indicates Codem715.. Self-dirgnosi3 E indicatorlight indicstes Code 15.
Check the mainshaft and counter-shaft speed sensor installation.
Are the mainshaft and countershaftspeed sensor installed properly?
Moasure Mainshaft Spoed SgnsolRosistance at the Sensor Con-n€ctor:1. Disconnect the 2P connectorfrom the mainshaft speed sen-sor connector.2. Measure the resistance ot themainshaft speed sensor.
ls the resistance 400 600 O?
Check Mainshaft Sp6ed Sensorfor a Short Circuil:1. Disconnect the B {25P) connec'tor lrom the PCM.2. Check for continuity betweenbody ground and 815 terminaland the 814 terminal individu,
Repai. shon in the wi.os bstwoenthe 815 and 814 te.minals andthe mainshatt .Dood 3ensor.
ls there continuity?
To page 14-71
14-70
Wire side of female terminals

Electrical Troubleshooting ('96 - 98 Modelsl
Troubleshooting Flowchart - Linear Solenoid
NOTE: Record all freeze data before vou troubleshoot,
Po$ible Caus6
. Disconnoctod lineaJ solonoidconnectot. Short or open in linoar solenoid
' Faulty linoar solonoidLINEAR
Terminal side ol male terminals
PCM CONNECTOR B I25PI
Wire side of female terminals
SOLENOID CONNECTOR
l;r]l
TT
YI
LI
REDWHT
OBO ll Scan Tool indicates CodeP176a.Self-diagnosi3 E indicatorlight indicates Code 16,
Measure Linear Solenoid Resist-ance at the Solenoid Connecto.:1. Turn the ignition switch OFF.2. Disconnect the 2P connectorlrom the linear solenoid connector,3. Measure the resistance ofthelinear solenoid.
ls the resistance approx. 5.0 O?
Check Linear Solenoid for a ShonCircuit:1. Disconnect the B 125P) connec-tor from the PCM.2. Check for continuity betweenthe body ground and the B1terminal and 82 terminal inda-vidually.
Repair short in the wires bgtwoenthe Bl and 82 terminab and thelineti solsnoid.
Meaaure Linoar Solenoid RGi3t-anc€:1. Connect the linear solenoidconnector.2, Meas u re the resistancebetween the 81 and 82 termi-nals,
Ropair looso terminal or open inthe wires botwe€n the 81 and 82telminals end the linear solenoid.
ls the resistance approx. 5.0 O?
To page 14-73
14-72

Electrical Troubleshooting ('96 - 98 Models)
Troubleshooting Flowchart - E Indicator Light Does Not Gome On
PCM CONNECTOR A I32PI
Wire side of female terminals
Tha E indicator light does nolcome on when the ignition swhchis first turned ON (lll. {lt shouldcome on tol about two s€conds.l
Chock the SeJvico Check Connec-tor:Make sure the special tool (SCS
Seryice Conneclor) is not connect-ed to the service check connector.
ls the special tool (SCS ServiceConnector) connected to the service check connector?
Disconnect the special tool tromthc sarvice check connoctor androcheck.
Check th6 E indicator Light:Shift to lD.l oosition.
Check tor loose PCM connecto6.ll nece3sary, sub.titute a known-good FCM and r.chock.
Check the Ground Circuit:'1. Turn the ignition switch OFF.2. Disconnecr the A {32P}connec-tor lrom the PCM.3. Check for continuity betweenthe A9 terminal and bodyground and the A22 terminaland body ground.
Repair op6n in tho wirgsbetween tho A9 ot M2 tormi-nals and G101.Rcpair poor glound {G101).
To page 14-77
l.
14-76