1996 HONDA CIVIC PCM

Troubleshooting Flowchart - Start
NOTE: Record all freeze data before you troubleshoot'
Clutch Control Linear Solenoid
PCM CONNECTORS
Wire side of lemale terminals
LGl (BRN/BLKI
(cont'd)
14-215
Po$ible Cause
. Disconnected solenoid harness
connedol. Short or open in sta.t clutch
control linear solenoid wiro. Faulty 3tart clutch conttol lin€ar
solenoid' Ooen in VB SOL wire. Open in PGI and PG2 wires or
poor ground {G101)
B l25P) -- o l16P)
'OBD ll Scan Tool indicates
Code Pl879.. self-diagnosis E indicstor light
indicates Code 32.
Measure VB SOL Voltag6:
1. Turn the ignition switch OFF
2. Disconnect the B {25P) and D(16P) connectors {rom the
PCM.3. Turn the ignition switch ON (ll).
4. Measure the voltage between
the D5 and 820 or 822 termi-
nals,
Reprir opon or short in the wire
between the D5 terminal and the
undei-d.sh luse/relaY box.ls there battery voltage?
Check the Ground Ciicuit:'1. Turn the ignition switch OFF.
2. Check for continuity between
the terminafs 82 and 922 and
between terminals 810 and
820.
Rep.ir open in the wire betwesn
the terminab 82, 810, 820. tnd
822 and G101. RePair Poorground lG101l.
ls there continuity?
LGl IBRN/BLK)
To page 14-276
PCM CONNECTOR B {25PI

Electrical Troubleshooting ('gg - 00 Modelsl
Troubleshooting Flowchart - start clutch control Linear solenoid (cont,d)
Frcm page 14.275
SOLENOID HARNESS 8P CONNECTOR
T6rminal side of male terminals
Wire side of f6male terminals
SC LSM(PNK/BLU)
Measurs Start Clutch ControlLinear Solenoid R€aistance at thsSolenoid Harne€s Connector:1. Disconnect the solenoid har-ness 8P connector.2, M easu re the resistancebetween the No. 4 and No. Iterminals of the solenoid har-ness 8P connector,
ls the resistance 3.8- 6.8 0?
Check Start Clutch Control Line.rSolenoid tor a Short Circuit:Check for continuity between thobody ground and the 818 termi-nal and B2Sterminal individually.
R€p.ir short in th. wire bctw.onth6 818 and 825 termin.lr rndthe 3hift cont ol linc.r solonoid.
Measure Start Clutch ControlLinear Solenoid R6ist.nco:1. Connect the solenoid harness8P conn€clor.2. Measure the resistancebetlveen the 818 and 825 ter,mtnats,
Raprir looa. t€.minal or opan intha wirars lratwe.n the B18 and825 terminal3 and tha st!rtclutch control linoar 3olanoid,
ls the resistance 3.8-6.8 O?
Check to. loose tarminal fit in thoPCM connactors. It necessary,substitute a known-good PCMand recheck.
SC LSP
SC LSM
14-276

Troubleshooting Flowchart - lnhibitor Solenoid
NOTE: Record all freeze data before you troubleshoot'
Po3sible Cause
. Oi3connec'ted solenoid harn6s
connectoa. Shorl or open in inhibitor 3ole-
noid wir€. Faulty inhibitor solenoid. ODen in vB SOL wire. Open in PGl and PG2 wires or
poor ground {G101}
PCM CONNECTORS
Wire side ot female terminals
LGl IBRN/BLKILG2 (BRN/BLKI
(cont'd)
14-217
.OBD ll Scan Tool indicaies
Codo P'l882.. Self-diagnosis E indicttor light
indic.tes Code 33.
Me'sure VB SOL voltagel'1. Turn the ignition switch OFF.
2. Disconnect the B (25P) and D(16P) connectors from the
PCM.3. Turn the ignition switch ON (ll)
4. Measu.e the voltage between
the D5 and 820 or B22 termi-
nals.
Repair open or short in the wire
between the D5 tolminal and the
undor-dash lu36/relay box.ls there baftery voltage?
Ch€ck the Ground Circuit:
1. Turn the ignition switch OFF.
2. Check tor continuity between
the terminals 82 and 822 and
between terminals B'10 and
820.
R€pair open in the wire between
the torminal3 82, 810, B20, and
B22.nd G 101. RePair Poorground {G101).
(BRN/BLKI
To page 14-278
PCM CONNECTOR B {25P}

Electrical Troubleshooting ('99 - 00 Models)
Troubleshooting Flowchart - Inhibitor Solenoid (cont'dl
SOLENOID HARNESS 8P CONNECTOR
SOL INH
Terminal side of male terminals
Wire side oI temale terminals
Mersure Inhibitor Solenoid R6b-t.nce at the Solenoid Harne3sConn€ctor:1. Disconnect the solenoid har,ness 8P connector,2. Measure the resistancebetween the No.5 terminal ofthe solenoid harness 8P con-nector and body ground.
ls the resistance 11.7 - 21.0 O?
Check Inhibitor Solonoid fo. .Short Ci.c!it:Check for continuity between theD2 and 820 or 822 terminals.
R.p.ir 3hort in thc wire botwaanth€ 02 t.rminal and the inhibhotsolenoid.
Measur6 Inhibitor SolenoidRe3istance:1, Connect the solenoid harness8P connector.2, Measure the lesistancebetween the D2 and 820 or822 terminals.
Rcpair loo3. tarminal or opan intho wha brtw.€n tho D2 to.mi-nal .nd tho inhibitor lolonoid.
ls the resistance 11.7 - 21.0 O?
Check fol looso torminal fit in thePCM connectors. lf n€cessaay,substitute a known-good PCMand r€check.
Ftom page 14-277
LGl IBRN/BLKI
LGl{BRN/ALKI
B t25P) ll D t16P)
B t25Pt otl6Pt
14-274

Troubleshooting Flowchart - Drive Pulley Speed Sensor
NOTE: Record allfreeze data before you troubleshoot'
Possible Cau3€
. Disconnected diive PulleYsoeed s6n3or connectol. Short or open in drive Pull.Ysooed sonsor wire. FaultY drive PulleY spo€d sen'
301
DRIVE PULEY SPEED
SENSOR @NNEfiOR
Terminal side of male terminals
PCM CONNECTOR D (16PI
NDR SG IGRNI
Wire side o{ Iemale terminals
(cont'd)
14-279
.OBD ll Scan Tool indicates
Code Pl885.. Selt-diagnosb E indicator light
indicatos Code 34
check the drive pulleY sPeed sen-
sor installation, and check it for
damage.
ls the drive PulleY speed sen-
sor installed properly, and not
damaged?
Rein3tall or roplace and techeck
Measuro Drive PulleY Speed Sen_
sor Ro3istanco at the Sonsol
Connector:1. Disconnect the 2P conneclor
from the drive Pulley speed
sensor,2. Measure drive Pulley speed
sensor resislance at the sen-
sor connecror.
ls the resistance 350 - 600 O?
Check Drivo PulleY SP6€d Sen3o.
lor . Short Circuit:1. Disconnect the D {16P) connec-
torlrom the PCM.
2. Check lor continuity between
body ground and the D11 ter
minal and D'l2 terminal indi
vidually.
Repai. short in the wiles
between the Dll lnd D12 termi-
nals and iho drive Pull.Y speed
To page 14-280

Electrical Troubleshooting ('gg - 00 Models)
Troubleshooting Flowchart - Drive pulley Speed Sensor (cont,d)
PCM CONNECTOR D {16P}
Wire side of temale terminals
From page 14-279
Measure Drivo Pulley Speed Sen-sor Circuit tor an Open:1. Connect the drive pulleyspeed sensor connector,2. lvleasu re the resistancebetween the Dl1 and Dl2 ter-minals.
R6pair loose tgrminal or opan inthe wiros betwo€n tho D1,l .ndOl2 tarminrl! .nd th. drivs pul-ley speed *n3or.
ls the resistance 350 - 600 O?
Ch6ck for loose lerminal tit in thePCM connectors, ll nece3saay,substituto a known-good PCM6nd r€check.
14-280

Troubleshooting Flowchart - Driven Pulley Speed Sensor
NOTE: Record all freeze data betore you troubleshoot'
Po3sible Caus€
' Oisconnected driven PulleYspeed s6nlor connoctor. Short or opon in d.iven Pulleysoeed sonsol wirc. Faulty driven Pulley speed sen_
sor
DRIVEN PULLEY SPEED
SENSOR CONNECTOR
Terminal side ol male terminals
FCM CONNECTOR D If6P)
NDN IWHTI
Wire side of female terminals
(cont'd)
'OBD lt Sc.n Tool indicates
Code Pl886.. Self-diagnosb E indicator light
indicrt€. Codo 35.
Check the driven Pulley speed
sensor installation, and check it
Ior damage.
lsthe driven pulleY speed sen'
sor installed ProPerly, and not
damaged?
Boin3tall or ropl.ca and recheck.
M..sure Drivon PulloY SPoed
Sonsor Rosblanco at the S6n3or
Conn6ctori1. Disconnect the 2P connector
trom the driven PUlley sPeed
sensor,2. lveasure driven Pulley speed
sensor resistance at the sen_
sor connector.
ls the resistance 350 - 600 0?
Check Dtivon Pulloy SP€ed Sen'
sor for a Short Circuit:
1. Disconnect the D (16P) connec-
torfrom the PCM.
2. Check tor continuity between
body ground and the D10 ter'
minal and Dl6 terminal indi-
vidually.
Raoair shott in tho wi.6s
betwoon th. Dlo end D16 tormi'
nak .nd the ddven Pulley spo€d
Fo page 14'282
14-2A1

Electrical Troubleshooting ['gg - 00 Models)
Troubleshooting Flowchart - Driven pulley Speed Sensor (cont,dl
NON SG IRED/WHTI
Wire side of female terminals
From page l4 281
M6asure Driven Pulley SpeedSensor Circuit Ior an Op€n:1. Connect the driven pulleyspeed sensor connector,2, Measure the resistancebetween the D10 and Dl6 ter-minals.
Rgpair loose terminal or open inthe wires botwosn the Dlo and016 torminab rnd the drivon Dul-ley speed 3ensoa,
ls the resistance 350 - 600 O?
Check tor loose terminal tit in thePCM connectors, lf necessary,sub3titute a lnown-good PCMand rech6ck.
14-282