1996 HONDA CIVIC 16p

ECM/PCM CONNECTOR O {16P)
Wire side ol temale terminalsECM/PCM CONNECTOR D {16P)
(D16Y7, D16Y8 enginelNOTE: Standard battery voltage is 12 V.
L
.1 A/J (Dl6Y7, Dr6Y8 engine)
(cont'd)
1 1-95
5i!ml
YELLCA (LOCK.UPCON]ROLSOLENOID VALVE A)Orivos look-up controlsol€noid wlv€ a.With lock-up ON: httery vollageWith lock-up OFFi 0 V
GRN,M/HT
SHB {SHIFT CONTFOLSOLENOIO VALVE B)Drivos sh ift cont.ol solanoid valv6 Bln E posnion, in 1st lnd 2nd eoat ,n E E pos'tion:Battsry voltagoInElposirion. in 3rd seat in pd, El in.th sear in
l_d polition: o v
3''GRN/BLKLC8 (IOCK UP CONTBOLSOLENOID VALVE B)Drivs locl up conttol sol€noid v6lv€ Bwhen fulllock-up: Banory vollagaWnh naf locl-uP: Pulsing si9n6l
5',BLK/YELVSSOI (BATTEsYVOLTAGEFOB SOLENOID VALVE)Powe. sourc€ ol solGnoid valvewirh ignirion sitch ON (ll): battory voltaoeWirh ignnion switch OFF:0 v
ATPR (AT GEAR POSITIONswrTcH)Detecrs Ay'T g6a. position switch signal.In any olh€r position: APProx. 10 V
8LU/YEL
SHA iSHIFI CONTROLSOLENOIDVALVE A)Oriv€6 sh ift conirol sol€noid valve A.ln tr,tr position, in 2nd €nd 3rd sear in lpd, &lposirion: Batt€ry vollsgo;n 1d soar in E, E position, in.ih se6r in E
PNKATPO3 (AT GEAR POSITIONSWITCH)Oot6cts Ay'T S6.r poeirioo switch siSnalIn Enyoth.r position: APPror, t0 v
9''YELATPD4 {AT GEAE POSITIONswrTcH)Oorocts A/I gs8r position switch signal.In any oth6t position:APProx 5 V
BIUNC (COUNTE RSHAFT SPEEDSENSOB)DetocB counr€.shaft sp66d $osr sig.alsD€p€nding on v6hicls 8pe€d;Pul.ins signalWh6n v€hicls i5 ltoPPsd:0 v
REONM (MAINSHAFTSPEED SEN.soR)O€l€cts mainshalt sp€€d 3.nsor 3ign.lsWi$ engino rLrnningl PUls6s
NMSG {MAINSHAFT SPEEOSENSOR GFOUNO)Groundfo, mainshaft sp@d sensor.
13''!T GFNATPNP {AT GEAF POSITIONswrrcH)oetscts A/T 96ar pGitaon swhch signalIn par* or n6ulral:0 VIn sny olhd po3ition: APProx l0V
BLUATPz {AT GEAE POSITIONswrTcHlDor€cis !y'T gos. posilion swilch signal.In any oth6r Position: APProx, 10 V
16''GANNCSG {COUNTEBSHAFT SPEEDSENSOE GROUND)Ground lor countershaii sp€3d s6nsor.
r lo

Troubleshooting
En gine/P_oweft ra in Control Module Termina I Arran gement
('99 - 00 Models except Dl6YS engine with M/Tl (cont,dl
ECM/PCM Connectol D (16P1
Wire side of female terminats
ECM/PCM CONNECTOR D {16P) (Dl6YS engine: CVTI
*3: CVT (Dl6Y5 engine)
NOTE: Standard battery voltage is 12 V
ECM/PCM CONNECTON D (r6P)
f€rminal
numDeaWire colorTerminalnameDescriptionSignal
1+3WHT/REDVEL (SECONDARY GEARSHAFT SPEED SENSOR)
Secondary gear shaft speedsensor,Depending on vehicle speed: pulsesWhen vehicle is stopped:0 V
2*3GRN/BLK
INHSOL {INHIBITORSOLENOID CONTROL)Inhibitor solenoid control.With inhibitor solenoid ON: bafteryvoltageWith inhibitor solenoid OFF: 0 V
3+3GRN/YEL
SHLSM (SHIFT CONTROLLINEAR SOLENOID
NEGATIVE SIDE)
Ground for shift control linearsolenoid.
BLU^/vHTSHLSP (SHIFT CONTROLLINEAR SOLENOIDPOSITIVE SIDE}
Drives shift control linearsolenoid power.With ignition switch ON (tl): pulses
5*3BLK,/YE LVBSOL lBATTERYVOLTAGE FOR
SOLENOID VALVE)
Power source of solenoid valve.With ignition switch ON (ll): baneryvoltage
With ignition switch OFF: 0 V
6*3WHTATPR (AT GEAR
POSITION SWITCH)Detects A,/T gear position switchsrgnal.InRposition:0V
In any other position: Approx. 10 V
BLKA/VHIVELSG (SECONDARY
GEAR SHAFT SPEEDSENSOR GROUND)
Ground for secondary gear shaftspeed sensor.
10*.WHTNDN (DRIVEN PULLEY
SPEED SENSOR)
Detects driven pulley speedsensor srgnal.In other than Park or neutral: pulses
11*3RED/BLUNDR (DRIVE PULLEY
SPEED SENSOR)
Detects drive pulley speedsensor srgnal.In other than Park or neutralt pulses
12*3GRNNDRSG (DRIVE PULLEYSPEED SENSORGROUND)
Ground for drive pulley speedsensor.
13*3LT GRN/REDATPS (AT GEARPOSITION SWITCH)
Detects Ay'T gear position switchsrgnal.In S position:0 VIn any other positioni Approx, 10 V
14*3GRN/BLKDIND 1D INDICATOR
LIGHT)
Drives D indicator.With D indicator turned ON: 5 VWith D indicator turned OFF: O V
16*rRED^/VHTNDNSG (DRIVEN
PULLEY SPEEDSENSOR GROUND)
Ground for driven pulley speedsensor.
1 1-96

PGM-FI System
(From page 11-109)
Replace the sensor that causedthe light to go out.Does the N4lL go OFF?
Check fo. a short in the wi.os(VCC lines):':. Turn the ignition switch OFF.2. Disco n n ect the ECM/PCMconnector D (16P).
3. Check for continuity betweenbody ground and ECM/PCMconnector terminals D4 andD10 individually.
Ropair short to body groundin the wire betweon ECM/PCM {O4) and MAP s6n3or.Repair short to body groundin the wire between ECM/PCM lD10l, the TP sensor, theEGR valve lift sensor {D16Y5engine) and/or the Fuel tankpressure sensor {'96 Dl6Ygengine lcoupe),'97 D16Y7engine (coupe: KL model,sedan: KL (LXl model), '97
D16Y8 engine (coupe: allmodels, sedan: KL model. €8-allmodelsl.
ls there continuity?
Check tor rn open in the wires(lGP lines):1. Disconnect the fuel injectorsand IAC valve connectors,2. Turn the ignition switch ON (ll).3. Meas u re voltage betweenbody ground and ECM/PCMconnector terminals A11 and424 indivjdually.- Repair open in the wirels)between ECM/PCM (A11,A24land PGM-Fl main relay.- Check for poor connectionsor loose wiras at the PGM-FImain relay,- Test the PGM-FI mdin relavlsee pag6 11-237).
ls there battery vohage?
Check for an open in the wires(LG line3):1. Reconnect all sensor connectors.2. Reconnect the ECM/PCM con-nector D (16P).
3. Turn the ignition switch ON (ll).4. Measure vo ltage betweenbody ground and ECM/PCMconnector terminals Ag andA22 individually.
Repair open in the wirolglb€twe€n ECM/PCM {A9, A22} andG101 that had more than 1.0 V.
ls there less than 1.0 V?
Substitute 6 known-good ECM/PCM and r€check. lf symptom/indication 9o€s away, replacethe original ECM/PCM.
Engine Control Module/Powertrain Control Module (ECM/pCMl
('96 - 98 Models, '99 - 00 D16Y5 engine with M/Tl (cont,dl
ECM/PCM CONNECTOR D {16P}
Wire side of female terminals
ECM/PCM CONNECTOR A (32P}
Wire side of female terminals
11-110
LG1
VCCl {YEL/RED}
IGP 1{YEL/BLKI
2I11
1213l5t6Itt8t9202321
25272a2930
IGP 2(YEL/BLKIv) (l
{8RN/BLK)
I258tol1'12tt11t5l617t8t920232a
2A2330
LG2{8RN/8LK}

PGM-FI System
(From page 11-117)
ls approx. 2 kPa ('15 mmHg, 0.6in.Hg) or less indicated?
Check for a short in ihe wire{MAP line)l1. Turn the ignition switch OFF.2. Disco n nect the ECM/pCMconnector D (16P).
3. Check for continuity betweenthe MAP sensor connector No.3terminal and body ground.
R6pair lhort in tha wire b€twaenECM/PCM {D3l .nd MAP !6ru0r.
Substitute a known-good ECM/PCM..nd recheck. normal MAPis indiceted, .eplsce lhe originalECM/PCM,
Manifold Absolute Pressure (MAp) Sensor('96 - 98 Models,'99 - 00 D16Y5 engine with M/Tl (cont,d)
MAP SENSOR 3P CONNECTOR IC1l1I
MAP(RED/GRNI
Wire side of femate;rminats
11-118

!Manifold Absolute Pressure (MAPI Sensor -
i;idlga lil;dels,'99 - 00 Dl6Y5 ensine with M/T)
ll
The scan tool indicates Diagnostrc Trouble code (DTC) Po108: A high voltage (low vacuum) problem in the
Manifold Absolute Pressure (MAP) sensor.
MAP SENSOR 3P CONNECTOR ICl11}
MAPIRED/GRNI
JUMPER WIRE
Wire side ol female terminals
vcclIYEL/RED)
ECM/PCM CONNECTOR D (16PI
MAP(RED/GRN)
sG1(GRN/WHT)
Wire side of female terminals
(cont'd)
11-121
The MIL has been reported on
OTC m108 is stolod.
Problem vetitication:
1. Start the engine. Hold the
engine at 3,000 rPm with no
load (in Park or neutral) until
the radiator fan comes on, then
let it idle.
2. Check the MAP with the scan
tool.
lntormittent lailure, sFtom k OK
.t thb time. Chock lor Poor con'
nections or loorg wires at Cll'l
|MAP sensorl snd ECM/PCM.
ls 101 kPa (760 mmHg,30 0 in.Hg)
or higher indicated?
Check tor an open in the MAP
36nSOt:1. Turn the ignition switch OFF
2. Disconnect the MAP sensor
3P connector.3. Install a jumper wire betlveen
the MAP sensor 3P connector
terminals No 3and No 2.
4. Turn the ignition switch ON (ll).
5. Check the MAP with the scan
tool.
ls 101 kPa (760 mmHg, 30 0 in.Hg)
or higher indicated?
Check for an open in wire (SG1
line):1. Remove the iumper wire.
2. Measure voltage between the
MAP sensor 3P connector te.
minals No. 1 and No 2
Rapai. open in the wito batwoen
ECM/PCM (D12) .nd MAP !en.or.ls there approx. 5 V?
Check for an oPon in the wiie
(MAP linel:1. Turn the ignition switch OFF.
2. Connect the ECM/PCM con-
nector terminals D3 and D12
with a iumPer wire.
3. Turn the ignition switch ON (ll).
4. Check the MAP with the scan
tool.
Repair opon in the wiles bstlt oon
ECM/PCM (D3l and MAP 3oGor.ls 101 kPa (760 mmHg, 30 0 in.Hg)
or higher indicated?
Substituto a known'good ECM/
PCM and rochock. ll normal MAP
is indicated, replace tho original
ECM/PCM.
JUMPER WIRE
lr,

IIntake Air Temperature (lATl Sensor
The scan tool indicates Diagnostic Trouble Code {DTC) P0112: A low voltage (high temperature) problem in the
lntake Air Temperature (lAT) sensor circuit.
RESISTANCE IKOI
.-l
*2: lf the engine is warm, it will be
higher than ambient temPerature.
IAT SENSOR 2P CONNECTOR {C112)
. a2 .. toa rra rrl l:rt t.al20 0 20 ro ao ao too t2ot.cl
INTAXIE AIR TEMPEFATURE
IAT{RED/YEL)
termrnars
-+-r
I'l'l-_T-
I=
Wire side of female
The MIL has been Teported on.
DTC P0112 is stored.
Problem verification:1. Turnthe ignition switch ON 1ll)2. Check the IAT with the scan
tool-
ls 302'F (150"C) or hagher (or
H Limit in Honda mode ot
PGM Tester) or 0 V indicated?
ls the correct ambrent temper
ature indicatedi'?Roolac€ tho IAT 3ensor.
lntermittent failure, svstom is OK
6t this tim€. Check for Poor Gon-
nections or loos€ wires st C112
{lAT.en3orl and ECM/PCM.
Check tor a shon in the IAT sen-
sor:1. Disconnect the IAT sensor con
nector.2. Check the IAT with the scan
tool.
ls 302"F (150'C)or higher (or
H'Limit in Honda mode of
PGM Tester) or 0 V indicated?
Ch6ck for s short in the wira (lAT
lin€):1. Turn the ignition switch OFF
2. Disconnect the ECM/PCM con-
nector D (16P) (C (31P))*'.
3. Check for continuity between
the IAT sensor 2P connector ler-
minal No. 2 and body ground.
Reoair short in the wire bstweenECM/PCM tD8 (c25)'1) and IAT
Substitute a known-good ECM/
PCM and recheck. It normel IAT
is indicated, replace the original
ECM/PCM.
* l: '99 - 0O models except Dl6Y5 engine with M/T-rf,
11-125

PGM-FI System
Intake Air Temperature (lAT) Sensor
('96 - 98 Models,'99 - 00 D16Y5 engine with M/Tl
11-126
The scan tool indicates Diagnostic Trouble Code (DTC) POl13: A high voltage flow temperature) problem in theIntake Air Temperature (lAT) sensor circuit,
taT sENsoR 2P CONNECTOn (Cl12l
I' jrl
SG2 '---.]__+ tAT(GRN/BLKI I I IRED/YEL}
JUMPERWIRE
Wire side of female terminals
ECM/PCM CONNECTOR D (16PI
IAT IRED/YEL)sG2(GRN/BLK)
JUMPER WIRE
Wire side of female terminals
The MIL has been reported on.DTC P0113 b sto.6d.
Problem veritication:1. Turn the ignition switch ON (ll).2. Check the IAT with the scantool.
Intermittent tailuJe, systom is OKat this time, Check to. poor con-nections or loose wir.s at C112{lAT senso.l .nd ECM/PCM,
ls -4'F 1-20"C) or less (or L Limitin Honda mode of PGNI Tester) or5 V indicated?
Check for an open in the IAT sen-sol:1. Disconnect the IAT sensor 2pconnector,2. Connect the IAT sensor 2P con-nector terminals No, 1 andNo.2 with a jumper wjre.3. Check the intake air tempera,ture with the scan tool.
ls -4"F ( 20'C) or less (or L-Limitin Honda mode of PGM Tester) or5 V indicated?Repbce the IAT sensor.
Check tor an open in th6 wires{lAT. SGzline!):1. Turn the ignition switch OFF.2. Connect ECM/PCM connectorterminals D8 and D11 with a
3. Turn the ignition switch ON (ll).4. Check the IAT with the scantool.
ls -4"F ( 20'C) or less (or L-Limitio Honda mode ol PGM Tester) or5 V indicated?
R€p6ir opan in the wiro! hweenEC-M/PCM lD8. 011l and IAT sen-
Substitute a known-good ECM/PCM end recheck. lf normal IATis indic.ted, replace the originalECM/PCM.

|.
'f
fD;r.tt The scan tool indicates Diagnostic Trouble Code (DTC) P0117: A low voltage (high temperature) problem in the|jg Engine Coolant Temperature (ECTI sensor circuit.
ECT SENSOR 2P CONNECTOR (C122I
Wire side of female terminals
Substitute . lnown-good ECM/PCM .nd rocheck. It normrl ECT
is indic.ted, replaco the original
ECM/PCM,
*:'99 -Oo models except D16Y5 enginewith M/T
(cont'd)
11-129
The MIL has been ,eported on.DTC ml 1 7 is storod.
Problom vorification:1. Turn the ignition switch ON (ll).
2. Check the ECT with the scantool.
Intermittont failulo, sy3tom it OK
at thk tim., Chock for Poor oon-n.ctions or loo!. wiraa at C122IECT 3en orl and ECM/FCM.
ls 302"F (150"C) or higher {orH-Limit in Honda mode ofPGM Tester) or 0 V indicated?
Check toJ a short in the ECT s.n-5('t:1. Disconnect the ECT sensor 2P
connector.2. Check the ECT with the scanrool.
ls 302"F (150"C) or higher {orH-Limit in Hond6 mode ofPGM Testerl or 0 V indicated?
Check for a 3hort in tho wiro
IECT linel:1. Turn the ignition switch OFF.2. Disconnect the ECM/PCM con-nector D (16P) (C {31P))*.3. Check for continuity betweenthe ECT sensor 2P conneclor ter-minalNo, 1 and bodyground.
B.gair short in the wiro bltweenECM/PCM (D2 (C261'l .nd ECT
.1,