1997 HONDA CIVIC Code 38

PGM-Fl System
Elestrical Load Detector |ELD) t'glf - 00 Models except D16y5 engine with M/Tl
The scan tool indicates Diagnostic Trouble Code (DTC) P'1297; A low voltage probtem in the Electrical LoadDetector (ELD) circuit.
ELD 3P CONNECTOR tC354)
EL{GRN/REOI
ECM/PCM CONNECTOB A I32PI
Wire side of lemale terminals
Problem verilication:1. Do the ECM/PCM Reset Pro-cedure.2. Sta rt the engine.3. Turn on headlights.
Inlermittont failur6. systom i3 OKat this time, Chock tor ooor con-nestions or loose wires at C131(locrted undor ight side ot d.shl,C354 (ELDI and ECM/PCM.
Check for short in th6 ELD:Measure voltage between bodyground and the ELD 3P connectorterminal No.3.
ls there approx. 4.5 V?
Check to. a short in the wne (ELlinel:'L Turn the ignition switch OFF.2. Disconnect the ECM/PCM con-nector A (32P).
3. Check tor continuity betlveenbody ground and ECM/PCMconnector terminal A30.
Repair short in the wile betweenECM/PCM lA30) and ELD.ls there continuity?
Sub3titute a known-good ECM/PCM and rech€ck. It symptom/indication goes away. replacethe o.iginal ECM/PCM.
1 1-180

Elestrical Load Detector (ELD) f96 - 98 Models''99 - 00 D16Y5 engine with M/T)
ThescantoolindicatesDiagnosticTroubleCode(DTC)P1298:AhighvoltageproblemintheElectricalLoad
Detector (ELD) circuit
ELD 3P CONNECTOR {G's'I
Wire side ol female terminals
EL IGFN/REDI
Problom vcrificttion:
1. Do the EcM/PClVl Reset Pro-
cedure,2. Start the engine.
3. Turn on headlights.lntarmitt..rt l.ilur., ryttcm b OK
.t thia tim. Ch.ck lor Poo' con-
nections or looaa wir.3 at C131
lbcd.d und.r right ide ol dalhl'
Gl5a {EU)} .nd ECM/PCIYI
ls DTC P1298 indicated)
Ch.ck lor tn oPan in tho wir'
(lGl linol:1. Turn the ignition and head'
liohts OFF2. D]""onn""t the ELD 3P con_
nector-3. Turn the ignition switch ON {ll)'
4. Measure voltage between body
ground and the ELD 3P connec
tor terminal No. '1.
R.oair ogan in tha wira Mw"n
ru". rs ltTEnrlton SP SelSOn
t?.5 A, fu!. in th. undcr-dr3h
tu3e/r.l!Y box .nd ELD.
Chcck lor tn oP.h in thc wire
{GND lincl:1. Turn the ignition switch and
headlights OFF.
2. Disconnect the ELD 3P con_
nector'3. Check for continuity between
body ground and the ELD 3P
connecto. terminal No 2
Raprir opcn in the wira bstwt€n
ELD conncctor lnd G/O2.
Ch.ck lor !n oplo in tha wirc IEL
lin.l:Check for continuity between the
ELD 3P connector terminal No 3
and ECM/PCM connector termi
nal D'16.
Rapaii opcn in the wira b€tw"n
ECM/FCM (I)161 .nd th. ELD'
Ch.d( fo. r m.llunction in thc ELD:
1. Reconnect the ELD 3P con'
2. Start th€ engine and allow it
to idle.3. Wh ile measuring voltage
beNveen ECM/PCM connector
terminals D16 and A9, turn
the headlights on {low).
Does the voltage droP?
Sub3titut. . known_good ECM/
PCM .nd rcch.ct. lt sYmptom/
indication goas away/ iapllc'
thc origin.l ECM/PCM
wire side of lemale termrnals
Wire side of Iemale terminals
t'a
)
1 1-181

PGM-FI System
Elestrical Load Detector (ELDI ('99 - 00 Models except D16y5 engine with M/Tl
The scan tool indicates Diagnostic Trouble code (DTCI Pl298: A high vottage problem in the Etectrical LoadDetector (ELD) circuit.
ELD 3P CONNECTOR (65/0
EL {GRN/REOI
Wire side of fernale terminals
ELD 3P CONNECTOR (CA54I
TIr l2l3l
I crvo
(o) (BrKr
Y
Wire side of lemale terminals
ECM/PCM CONNECTORSA (32P1
Wire side of lemaleEI- IGRN/RED)terminals
ECM/PCM CONNECTORS
A {32P)
Problem ve.itication:1. Do the ECN4/PCM Reset pro
cedure.2. Start the engine.3- Turn on headiights.Inte.mittent teilu.e, svstem is OKat this lime. Chock for Door con-nections or loose wires at Ci31{located under Jight side otdaihl, C354 (ELD) and ECM/PCM.
ls DTC P1298 indicated?
Check for an open in the wire{lG1 line}:1. Turn the ignition and head-lights OFF.2. Disconnect the ELD 3P con
3. Turn the ignition switch ON (ll).4. Measure voltage between bodyground and the ELD 3P connec-torterminalNo. 1.
Repair opon in tho wiro batwe€nNo. 15 ALTERNATOR Sp SENSOR{7.5 A} fuse in th6 undor-dashIuse/reley box and ELD.
ls there battery voltage?
Check for an open in the wiro{GND linel:1. Turn the ignition switch andheadlights OFF.2. Disconnect the ELD 3P connector.3. Check for continuity betweenbody ground and the ELD 3Pconnector terminal No. 2,
Repair open in the wire bstwoenELD connsctor and Gia02.
Check ,or an open in the wire IELlinel:1. Disconnect the ECM/PCM con-nector A (32P).2. Check for continuity betweenthe ELD 3P connector terminalNo. 3 and ECM/PCM connec-tor terminal A30.
Chock fo. a malfunction in the ELD:'1. Reconnect the ELD connectorand ECM/PCM connectorA (32P).
2. Stan the engine and allow itto idle.3. While measuring voltagebetween ECM/PCM connectorterminals A30 and B2O, turnthe headlighrs on ow).
ls there continuity?
Repsir op€n in the wire betweenELD connector and ECM/PCM.
Substitute a known-good ECM/PCM and recheck. lf symptom/indication goes away. replacelh6 original ECM/PCM.
Does the vokage drop?
Wire side of f€male terminals
11-182

\Crankshaft Speed Fluctuation (GKFI Sensor .
firC- 48 Models, '99 - 00 D16Y5 engine with M/Tl
The scan tool indicates Diagnostic Trouble Code (DTC) P1336; Intermiftent interruption in the Crankshaft Speed
Fluctuation (CKF) sensor circuit.
ThescantooIindicatesDiagnosticTroub|ecode{DTC)P1337:NosignaIinthecrankshaftspeedF|uctuation(cKF}
sensor circuit.
D6scription
Thediagnosticsystemhasapu|serrotoronthecrankshaftandapu|sepick-upsensorontheengineblock.TheEcM/PcM
monitors the crankshaft speed ftuctuation based on the cKF sensor signal, and judges that 8n engine misfire occurred if
the fluctuation goes beyond a predetermined limit'
I
fPrk6l
lFr3g7-l
CKF SENSOR 3P CONNECTOR
L:l.)l l.' -Ir-T--T---.]l1 l2l3llL-''---r
CKFM I I CKFP
twrfit 1,.^ | lsLul\.7
Terminal side of male terminals
CKF MIWHT}
CKF PIBLUI
I(cont'd)
- The MtL hds been reported on.- DTC P1336 and/or P1337 a.e
stored.
P.oblem v€rific.tion:1. Do the ECM/PCM Reset Proce-
dure.2. Stan the enginelntormittont lailur6, tY3tom b OK
at thit tima. Chock tor Poor con'
nactions or loota wito! at C102
IC-KF son$rl .nd ECt /PCM, and
mrka suro CKF tonaor mounting
boh ittigM.
Chock for .n open in tho CKF aen-
30t:1. Turn the ignition switch OFF
2. Disconnect the CKF sensor 3P
connector,3. Measure the resista nce
between the CKF sensor 3P
connector terminals No. 1 and
No.3.
ls there 1.6- 3.2 kO?
Ch€ck tor a short in the CKF son'
30tiCheck {or continuitY between
body ground and the CKF sensor
3P connector termin6ls No. 1 and
No.3 individuallY.
(To page 11 184)
1 1-183

tCrankshaft Speed Fluctuation (CKF) Sensor -
('99 - 00 Mociels except D16Y5 engine with M/T)
The scan tool indicates Diagnostic Trouble code (DTC) P1336: Intermittent interruption in the crankshaft speed
Fluctuation (CKF) sensor circuit
The scan tool indicates Diagnostic Trouble Code (DTC) P1337: No signal in the Crankshaft Speed Fluctuation (CKF)
sensor circuat,
Description
Thediagnosticsystemhasapulserrotoronthecrankshaftandapu|sepick-upsensorontheengineb|ock.TheEcM/PcM
monitors the crankshaft speed fluctuation based on the cKF sensor signal. and judges that an engine misfire occurred if
the fluctuation goes beyond a predetermined limit'
I
Ftu6l
tF13g7l
CKF SENSOR 3P CONNECTOR
r--r t|-.r-r'--]llll l2l3ll.l---'.-T_
CKFM I I CKFP
twHTl |/Ai i lBlul--\9-
Terminal side oI male terminals
CKF M(WHT)CKF P(BLU)
t(cont'd)
1 1-185
- The MIL has b€on reportad on.- DTC P1336 and/or P1337 are
stored.
Problem verification:1. Do the ECM/PCM Reset Proce'
dure.2. Start the enginelntermittcnt failuro, sydcm is OK
ai this time. Check lot Poor con_
noctions or loo3e wiros at C102
ICKF s€nsor) and ECM/FCM, and
make suro CKF sansor mounting
bolt b tight.
Check tor an open in the CKF sen_
1. Turn the ignition switch OFF
2. Disconnect the CKF sensor 3P
3. Measure the resistance
between the CKF sensor 3P
connector terminals No. 1 and
No.3.
ls there 1.6 3.2 kO?
Check for a short in ihe CKF sen_
sot:Check for continuity betweenbody ground and the CKF sensor
3P connector terminals No 1 and
No.3 individuallY.
(To page 11-186)

l,a
Crankshaft Position/Top Dead Center/Cylinder Position (CKP/TDC/CYPI Sensor
Thescantoo|indicatesDiagnosticTroub|ecode(DTc)P1359:Aprob|eminthecrankshaftPosjtion/TopDead
Center/Cvlinder Position (CKP/TDC/CYP) sensor circuit'
- The MIL has been reported on- DTC P1359 is stored
Problem veritication:1. Do the ECM Reset Procedure
2. Stan the engine lftheengine
won't start, crank it for at least
10 seconds-
lntermittent failure, sYstem is OK
Check for poor connecllon3 or
loose wires at C120 {distributor}and ECM,/PCM.
ls DTC P1359 indicated?
Check for poor connections or
loose wires between the distribu
tor and the ECM/PCM
Substitute a known'good ECM/
PCM, and rccheck. lt 3ymPtom/
indication goes awtY, rePlace
the original ECM/PCM.
r ta
11-1A7

PGM-FI System
ECM/PCM lnternal Circuit
[Fi6oil th" """n tool indicates Diagnostic Trouble code (DTc) p1607: An EcM/pcM lnternal circuit probtem.
- The MIL has been reported on.- DTC P1607 is stored.
Problern verif ication:1. Do the ECN4/PCM Reset pro-
cedure.2. Turn the ignition switch ON t).3. Wait 10 seconds.
ls DTC P 1607 indicated?
Substitule a known-good ECM/PCM and recheck. lf symptom/indication goes away, .epl.ce theorigin.l ECM/PCM.
11-188

[F16551l Th" ""un toot indicates Diagnostic Trouble Code (DTC) P1681: TIVA,/TMB signal line failure
Problem verification:1. Do the ECM Reset Procedure.
2. Drive the vehicle Ior several
miles at varying speeds
lnt.rmittent failure, system is OK
at ihis time. Check tor Poor con-
nections or loos€ wires at C131
llocated under right side of dash),
C438 ITCM) and ECM.
ls DTC P1655 indicated?
Check lor an oPen in the wire(TMA line):1. Turn the ignition switch OFF
2. Disconnect ECM connector C(31P)from the ECM
3. Turn the ignition switch ON (ll).
4- Measure vo ltag e between
ECM connector terminal Cg
and body ground.
Check for a short in the wire
ITMA line,:Measure voltage between TCM
22P connector terminal No 7 and
body ground.ls there battery vohage?
Ropair shod in the wire bstwe€n
the EcM (C!l) and the TcM.ls there battery voltage?
Check for an open in the wire
{TMB line}:1. Turn the ignition switch OFF
2. Reconnect ECM connector c(31P).
3. Disconnect the 22P connector
from TCM.4. Turn the ignition switch ON (ll).
5. Measure vo ltage between
TCM 22P connector termlnal
No. 6 and body ground.
Repair open in the wire between
th€ EcM {Ca) and the TcM.
Check for a 3ho.t in the wire
{TMB lin6,:Measure voltage between ECM
connector terminal C30 and bodyground,
ls there battery voltage?
Substitute a known'good ECM
and recheck. It symPtom/indica'tion goes away, teplace the origi-
nal ECM.
Reoair short in the wile b6tween
the ECM {C30} and the TCM.ls there baftery voltage?
f,epair open in the wire between
the EcM (C30) and the TcM.
IJA/T Signal (TMA/TMBI ('96 - 98 Dl6Y5 engine with GW)
ECM CONNECTOR C 131P}TMA IGRYI
fcu22PCONNECTOR
ll
TMB*{PNK}
231678910
1t'12131415161718
232a252930
Wire side oI temale
terminals
tl,
1 1-189