ect HONDA CIVIC 1999 6.G Workshop Manual

From page 14-70
Mea3uro Main3haft speed sensor
Resistance:1. Connect the ma;nshaft sPeed
sensol 2P connector,2. [/leasu re the resistancebetween the 815 and 814 ter_minals.
Run the Electical TrouH€.hootingFlowcirrt for cod. P0720 l9l.Check for loose P1CM connoctors.ll n€cesslrY, 3ubstitute a known'good PCM and racheck.
ls the resistance 400 - 600 O?
Check NM wire Continuityl1. Disconnect the 2P connectorfrom the mainshaft speed sen'
sor connector.2. Check for continuity between
the 815 terminal and the No. 1
terminal of the mainshaft
speed sensor connector.
Rgpsi. opon in thc wira bctwg€n
the 815 torminrl and th6.tain_shatt soeod lensoa,
Check NMSG Wire ContinuitYr
Check for continuity between the
814 terminal and the No.2 terminal of the mainshaft sp€ed sensorconnector,
Repair open in the wira botwGonthe 814 terminal and lhe main'shsft spo€d 3en3or.
Check for loo3o PCM connoctoB.ll neca$8ry, subditute a known-good PCM and rgchock.
PCM CONNECTOR B I25PI
Wire side oI female termlnals
MAINSHAFT SPEED SENSOR
CONNECTOR
14-71

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

Check the G.ound Circuit:Check for continuity between theA9 and A10 terminals.
. Rapair opan in the wirobotweon th6 tormin.b Ag rndA10 and G101.. Raprir looc€ iunction connrc{or.. R.p.ir poor ground {G101}.
Chock tor 100!6 PCM connectors.ll nocessary, substituto a known-good PCM and r6ch6ck.
Ftom page 14-72
PCM CONNECTOR A I32P}
Wiro side of t6male terminals
14-73

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.

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

From page 14-76
BRN/BLK
BRN/BLK'96: BLU/RED,97, '98: GRN/BLK
Measure Powor Supply CilcuitVoltage:1. Turn the ignition switch ON (ll).
2. Measure the voltage betweenterminals A9 and A11 andbetween terminals A22 and424.
RGpair opon or short in the wire
boiween the A11 andlot Ml lor'
minals, the PGM-Fl m.in rel.Y,end the tu36 box.
Mo.sure D4 IND Voltago:1. Turn the ignition switch OFF.2. Connect the A {32P} connector
to the PCM.3. Connecl a digital multitester
to the B13 and Ag or A22 ter-minals,4. Turn the ignition switch ON (ll)
and make sure that the voltageis available for two seconds.
Chack tor opan in thc witabctwoon tha 813 larminal andth. gauge ar!.mbly. lf wi.c i!OK, chock for . frulty E indica-tor light bulb or a l.uhy g.ug.
a.!.mbly printod circuit bolrd.
Chock for loose PCM connoctort.Chock tho A/T gGat polition
switch. lI n6ca$sry, substitute aknown-good PCM and rochock.
PCM CONNECTOR A I32PI
Wire side of {emale terminals
14-77

Electrical Troubleshooting ('96 - 98 Models)
Th6 E indicstor light is on con-st.ntly {not blinkingl wheneveithe ignition switch is ON lll).
Measure 04 IND Voltage:1. Turn the ignition switch OFF.2. Disconnect the B 125P) connec-tor from the PCM.3. Turn the ignition switch ON (ll).
4. Measure the voltage betweenthe 813 terminal and bodyground,
Repair 3hort to pow€. in the wirobetween the 813 terminal endthc gauge asiombly.
Meaiure ATP Dil Voltage:1. Turn the ignition switch OFF.2. Connect the I (25P) connectorto the PCM.3. Turn the ignition switch ON (ll).4. Shiftto any position otherthan
5. Measure the voltage betweenthe 824 terminal and bodygrou nd.
Check for a short to ground on thowir6. It wire i3 OK, .eplac6 the A/Tgoar po3ition indbator,
Troubleshooting Flowchart - E Indicator Light On Constantly
a!
PCM CONNECTOR B (25P)
Wire side of lemale terminals
l.
14-7A

Troubleshooting Flowchart - Brake Switch Signal
Symptom
Shift lever cannol b€ moved f.om
B pGition with the brako podrl
depr8sed.
PCM CONNECTORS
Check Brako Light Operation:Deoress the brake pedal.
Rop.ir faulty braks switch cilcuit
lsos soction 231.Are the brake lights ON?
Measure SToP SW Vohag€:1. Turn the ignition switch OFF.2. Disconnect the A l32P) and D
{l6P) connectors from thoPCM.3. Measure the voltage belweenthe D5 and A9 or A22 termi-nals with the brake Pedaldepressod.
Rap.i. opon in the wira bctn oentha 05 terminal and tho btrkclwitdr.ls there battery voltage?
. Brake switch 3ign.l is OK.. Ch6ck lor looao PCM oonnoctors.It nocassary, aubctilute a known-good PCM and r€check.. Inspoct the brake switch circuit
{s6e section 231.
Wire side of lemale terminals

Electrical Troubleshooting ('99 - 00 Models)
Troubleshooting Flowchart - Lock-up Control Solenoid Valve A
NOTE: Record all freeze data before vou troubleshoot.
Possible Cause
. Disconnocted lock-uD controlsolenoid valve A/B alsemblyconnector. Short or opon in lock-up conkolsolenoid valv6 A wire. Faulty lock-up control solenoidvalva A' Open in VB SOL wireFCM CONNECTORS
LGl IBRN/BLXI LG2 (BRN/BLK)
Wire side ot female terminals
LGl (BRN/BLKILG2 IBRN/8LK)
To page 1+81
a\
. OBD ll Scan Tool indic.t6 CodeP1753.. Self-diagnosis @ indicatorlight blink3 once.
Check lor a Short to Power:L Turn the ignition switch OFF.2. Disconnect the B (25P) and D(16P) connectors lrom thePCt\4.3. Turn the ignition switch ON (ll).4. Measure the voltage betweenthe Dl and 820 or 822 termi-nats.
Ropair short to powcr in the wirebstwoon tho Dl tolminal and thelock-up cor|lrol lolonoid valvo A.
Measu.e Lock-up Cont.ol Sole-noid V.lvo A R63btanc6:1. Turn the ignition switch OFF.2. Measure the resistancebetween the Dl and 820 or822 terminals.
ls the resistance 12 - 25 O?
Measure VB SOL Vohage:1. Turn the ignition switch ON (ll).2. Measure the voltage betweenthe D5 and 820 or 822 termi-nals.
Check for blown No. 15 17.5 Alfu3€ in the undordash fuse/rabybox. l{ th€ tusa ii OK, r.pair oponin the wira b€twoen th€ 05 torfti-nal and thc und€r{ash fuso/r€laybox.
Check to.loose tarminalfit in thePCM connecloa3. ll necessary,substilute a known-good PCMand rocheck.
B (25Pt ll D {16P1
B (2sPt ll D {16P1
I t25Pt D (16P1
l..
14-80