2000 HONDA CIVIC Tdc

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height seats spare wheel headlight aiming brake rotor fuel cap release

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Page 272 of 2189

HONDA CIVIC 2000 6.G Workshop Manual Gomponent Locations
L
lndex
D16Y5 engine:
{IATISENSORTroubleshooting,
ELECTRICAL LOADDETECTOR IELD) (USA mod6l)Troubleshooting, page 11 179
THROTTLE POSITION ITP)SENSORTroubleshooting, page 1 1-132
MA

Page 274 of 2189

HONDA CIVIC 2000 6.G Workshop Manual D16Y7 engine:
ELECTRICAL LOAO
DETECTOR (ELD) IUSA}Troubleshooting, Page 11179
THROTTLE POSITION ITPISENSOR
MANIFOLD ABSOLUTEPRESSURE (MAPI SENSORTroubleshooting, Page 1 1-1 15r1-132
CRANKSHAFTPOSTTTO

Page 275 of 2189

HONDA CIVIC 2000 6.G Workshop Manual Component Locations
Index (contdl
Bl6A2 engine:
INTAKE AIR TEMPERATURE{IAT} SENSORTroubleshooting, page 11-125
MANIFOLO AESOLUTEPRESSURE IMAPI SENSORTroubleshooting. page 11-1 19IOLE AIR CONTROL {IA

Page 356 of 2189

HONDA CIVIC 2000 6.G Workshop Manual DataDescriotion
Loop status is indicated as "open" or "closed"
Closed: Based on the HO2S output, the ECM/PCM deter-
mines the airlfuel ratio and controls the amount of inject-
ed fuel.
Open: lgnoring

DataDescriotion
Loop status is indicated as "open" or "closed"'
Closed: Based on the HO2S output, the ECM/PCM deter-
mines the airlfuel ratio and controls the amount of inject-
ed fuel.
Open: lgnoring HO2S output, the ECM/PCM refers to sig-
nals from the TP, MAP, and ECT sensors to control the
amount of injected fuel.
The air/fuel ratio correction coefficient for correcting the
amount ot injected fuel when H02S feedback is in the
closed loop status When the signal from the HO2S is
weak, short term fuel trim gets higher, and the ECM/PCM
increases the amount of injected fuel The airlfuel ratio
gradually gets richer, causing a higher HO2S output
Consequently, the short term fuel trim is lowered, and
the ECMiPCM reduces the amount of injected fuel
This cvcle keeps the airlfuel ratio close to the stoichio-
metric ratio when in closed loop status'
Operating ValueF eeza Data
HO2S
Feedback
Loop Status
At idle speed: closed
YES
Short Term
Fuel Trim
! 20%
YES
Long Term
Fuel Trim
Long term fuel trim is computed from shon term fuel
trim and indicates changes occurring in the fuel supply
svstem over a long Period
lf long term fuel trim is higher than 1.00, the amount of
injecGd fuel must be increased. lf it is lower than 1 00'
the amount of injected fuel must be reduced'
! 20%
YES
lntake Air
Temperature
{IAT)
The IAT sensor converts intake air temperature into volt-
age and signals the ECM/PCM. When intake air tempera-
ture is low, the internal resistance of the sensor
increases. and the voltaqe signal is higher'
With cold engine:
Same as ambient temPer'
ature and ECTYES
At idle speed:
approx. 10 %YESThrottle
Position
Based on the accelerator pedal position, the open'ng
angle of the throttle valve is indicated
lgnition
Timing
lgnition timing is the ignition advance angle set by the
gCV/eCV. tn" gCU/PCM matches ignition timing to the
driving conditions.
CLV is the engine load calculated from the MAP data'
At idle speed: 12'i 2'
(81642 engine: 16" t 2")
BTDC with the SCS ser-
vice connector connected.
NO
Calculated
Load Value
{CLV)
At idle speed:
15-35%
At 2.500 rpm with no load:
12 - 30%
YES
ro
11-87

Page 359 of 2189

$HONDA CIVIC 2000 6.G Workshop Manual Troubleshooting Engine/P_o_wgrtrain Control Module Terminal Arrangement(96 - 98 Models 99 - 00 Dt6y5 engine with M/T) tconiOi ECM/PCM CONNECTOR C {31PI 1 CKFP 2 CXPPTDCPa ACS 5 sTs 7 scsII rMA 10 v$

Troubleshooting
Engine/P_o_wgrtrain Control Module Terminal Arrangement('96 - 98 Models '99 - 00 Dt6y5 engine with M/T) tc'oniOi
ECM/PCM CONNECTOR C {31PI
1
CKFP
2
CXPPTDCPa
ACS
5
sTs
7
scsII
rMA
10
v8u121314t51517
ALTF
TE
vss23lP+
21252930
TMA
Wire side of female terminalsECM/PCM CONNECTOR C (31PI
NOTE: Standard baftery voltage is 12 V
'1: USA modelr2rA,.T (D16Y7, O16Y8 ensane)*3: CVT (O16Y5 engine)*4: Ay'T and O16Y7 engine'5: Excepl A./T snd Dl6Y7 engine16: Ay'T (D16Y8 ensine){7: CVT (Dl6Y5 eosine) and O16Y8 enoine"8: 96 Dl6Y8 engine (coupe),'97 D16y8 engine (coupe: atl:ed-9I t!!rnodelr,'98 D16y5 ensine,,98 D16y8 e;sine.D16Y5 lM/T) ensine
1-90
19: D16Y5 engine'10: M/T (Dl6Y5 engine)*11r Except M/T 116Y5 engine)*12: D16Y5, D16Y8 engine*13: Dl6Y8 enqine*14: O16Y7 enginei15: '-97 O16Y7 engjne (coupe: KL modet, sedan: KL (LX) modet),'98D16Y7 enqine'99 - 00
1
To.min!lnumberWiracoloaTorminalnameDo6criptlonSignal
1BLU/REDCKFP (CKF SENSOR P SIDE)Detects CKF sensor.With engine running: pulses2BLUCKPP (CKP SENSOF PSIDE)Detects CKP sensor.With engine running: pulses3GRNTDCP {TDC SENSOR PSIDE}Detects TDC sensor,With engine running: putses4YELCYPP (CYP SENSOR P SIDE)Detects CYP sensor.With engine running: pulses
5BLU/FEDACS {Tr'C SWITCH SIGNAL)Detects ,ay'C sw;tch signat.With Iy'C switch ONr 0 VWith Ay'C switch OFF: batrery vottage
6BLU/ORNSTS (STARTER SWITCHSIGNAL)Detects staner swilch signal,With staner switch ON ltlt): batery vohageWith staner switch OFF: 0 V
8RNSCS (SERVICE CHECKSIGNAL)Detects service check connector signal{the signalcausing a OTC indicationlWith the connector connected: O Vwith the connector disconnected: about 5 vor battery voltageLT 8LUK,LINE (DLC)Sends and receives scan iool signal,Wirh ignition switch ON { ): about 5 V
9+3GRYDat6 communication with TCM: ECMcontrol ctat6 outputWith ignition switch ON (tt):putses
10WHT/BLUVBU (VOLTAGE BACK UP)Power source forthe ECM/PCMcontrol circuit. Power sourc€ lortheDTC memory
Battery voltage at all times
11WHT/REDCKFM {CKF SENSOR MSIDE)Ground tor CKF sensor signal.
12CKPM (CKP SENSOR MSIDE)Ground for CKP sensor s;gnat.
REDTDCI\4 (TDC SENSOR MSIDE)Ground for TDC sensor signal.
14BLKCYPM (CKP SENSOB MSIDE}Groond for CYP sensor signal.
15."BLU/BLKVTM (VTEC PRESSUREswtTcH)Oetscts VTEC pressure switch signal.Wrth engine at low enginespeed:0 VWth engineathigh engine speed: tatteryvoltase
16GRN
PSPSW (P/S OIL PRESSUREswtTcH)Detects PSP switch signal.At idle with steering wheel in straight aheadposition:0 VAt idle with stsering wheet at fult tock batteryvoltage'17WHT/REDALTF (ALTERNATOR FRSIGNAL)Detects ahernator FR signal.With fullyw6rmed up engine running:0 V- bat-teryvohage (depending on electricat toad)18BLUI/VHTVSS {VEHICLE SPEED SEN-SOR}Oetects VSS signal.Whh ignitjon switch ON {tt) and front wheetsrotating: cycles 0 V- 5 V23+14BLKlP+ {HO2S PUtr4P CELL +}Controls HO2S pump ce .With ignition switch ON (ll): abour 0.5 - 5.3 V
24.10REDrP-, vs- {Ho2s coMt oN)Reference voltage supply.With fullywarmed up engine et idle:about2.6-2.8 V25*roVS+ (VS CELL VOLTAGE)Detects VS cell voltage.With ignition switch ON t): abour 7 V
29LT GRN*'ATPNP (Ar'T GEAR POSI,TroN swrTcH)Deteds Ay'T g6srposhion switch signat.In E orE position: O Vln any other position: battery vottage
RED{roCLSW (CLUTCH SWITCH}Detects clutch switch signal,Wilh clutch pedal released: about 5 VWith clutch pedal deDressed: O V30PNK4TMBData communication with TCM:ECM controldata inputWith ignit;on switch ON (lt):putses

Page 363 of 2189

$HONDA CIVIC 2000 6.G Workshop Manual Troubleshooting Eng ine/P_owertrain Control Module Term inal Arrangement (99 - 00 Models except Dl6Y5 engine with M/Tl (cont,d) ECM/PCM CONNECTOR C {31P)Wire side of female terminalsNOTE;Standard *1;$

Troubleshooting
Eng ine/P_owertrain Control Module Term inal Arrangement
('99 - 00 Models except Dl6Y5 engine with M/Tl (cont,d)
ECM/PCM CONNECTOR C {31P)Wire side of female terminalsNOTE;Standard
*1;4"/T lD16Y7, D16Y8 ensinel
43: CVI(016Y5 engine)'4: D16Y5, D16Y8, 81642 engin€
ECM/FCM CONNECTOR C 13lPI
is 12 V.
Sig.al
lBLK4/VHTPO2SHTC (PNIMARY HEATEOOXYGEN SENSOB HEATES CONTROL)
Drivss primary hoated orygen sensofWith ignition switch ON (lr)rbanery volageWrh fJly warned up €ngir. ru..i19: duty.oaro ed
2WHT/GFNALTC (ALTESNATOB CONTSOL)Sends aliernalo. control sig nal,With fullywa.med upengine ronning; banery vohaseDuring d.iving with smallelect.icatioad; O V38ED/BLUK5 (KNOCK SENSOR)with sngine knocking: pulses
5WHT/REDATTF {AITEFNATOR FR SIGNAL'Detects slternaror FR si9n.l.With tullywarmed up engine running:O V- batteryvortage(dependingon erectficat toad)
WHT/8LKEGRL (EGN VAIVE LIFTSENSOR)Dete.ts EGR valve lrft sensorsignat.
GRN,4r'l/flTSGl ISENSOE GBOUND)Groond fo. MAP s€nsor.L€ss rhan 1.0 v at alltimes88luCKPP (CKP SENSOR P SIOE'With engine running: pulses9CKPM {CKP SENSOR M SIDEIGround for CKP sensor.
BLU/BLKwlvl (wEc PREssuSE swtTcllSIGNAI)D€tocts VTEC pfessure switch signat,With €ngine at low enginospeed:0VWith engin€ at high engino speed : banery vo ttaae
16PHO25 (PRII\,1AFY HEATEDOXYGEN SENSOR, SENSOR 1)Oetects primary heated oxygen s6nsor lsen-With lhrottle f!l1y open€d from idtewith tuly,wa.med !p engin€: Ebove 0.6 VWilh thronl€ quickly closed: b€tow 0.4 V
FED/GRNMAP (I\,4ANIFOLD ASSOLUIEPFESSUSE SENSOB}Dotocrs i,4AP sensor signsl.With ignitioh switch ON (ll):about 3 VAt idlei6boul 1.0 V (depending on engine speed)18GBN/8LKSG2 (SENSOR GSOUND)Less than 1.0 V aralttimes'19YEUNEDVCCl (SENSOR VOLTAGEIPowersourcero MAPsenso..With ignition swilch ON {ll):about 5 VWirh iqnition switch OFF]0 V20GNNIDCP (TDC SENSOB P SIDEIWith ongine running: pulses218EDTDCI\,I (TDC SENSOR M SIOE)Ground lor TOC aensor.22BTU/NEDCKFP (CKF SENSOR P SIDE)With engine running: p!lses
23VSS {VEHIClE SPEED SENSOR)Wilh ignrt|on swich ON rllr snd lront wl-ee' rotating.cycles 0 V about 5V or baneryvottage
25BED/YELIAT ONTAKE AIF TEi,4PEBA.TUEE SENSOR)Detects IAT senso. signat.With ignition switch ON (ll): about 0.1 4.8 Vldepending on i.take air ternpe.atu re)
268ED,ryVHTECT (ENGINE COOLANTTEI\,I.PESATUBE SENSOR)Oelects ECT sensor signal.With ignirion swirch ON {ll):about0.1 -4.8 V(depending on engine coolant temperatu re)
21NED/BLKTPS (THROTTLE POSITION SEN,SOF)Detects TP sensor signal.Wilh th.onle fully op€n: about 4.a VWith rhronle f!lly closed: about 0.5 V
2aYEVBLUVCC2 (SENSOR VOLTAGE)Provides s6nsor voltag€.With ignirion swirch ON (tt):about 5VWith ignilion swiich OFF:0 V29YELCYPP (CYP SENSOR P SIDE)Wilh €ngrne running: pruses3oBLKCYPM (CYP SENSOR M SIDE]G,ound for CYP sonsor.J1WHT/FEDCKFM (CKF SENSOB M SIDE)Ground fo. CKF sonsorsign6i.
11-94

Page 370 of 2189

HONDA CIVIC 2000 6.G Workshop Manual DTC(MlL indicationlDetection ltemProbable CausePage
P1336(54iCrankshaft SpeedFluctuation SensorIntermittent Interruption
. CKF sensor11 183
P1337 (54)Crankshaft SpeedFluctuation SensorNo Signal
CKF se

Page 373 of 2189

HONDA CIVIC 2000 6.G Workshop Manual PGM-FI System
System Description
CKP/TDC/CYP Sensor
MAP Sensor
IAT SensorTP SensorEGR Valve Lift Sensor*Primary H02SSecondary HO2SVSSBARO SensorELD*KS€Starter SignalALT FR SignalAir Conditioning S

PGM-FI System
System Description
CKP/TDC/CYP Sensor
MAP Sensor
IAT SensorTP SensorEGR Valve Lift Sensor*'Primary H02SSecondary HO2SVSSBARO SensorELD*'KS€Starter SignalALT FR SignalAir Conditioning SignalA/T Gear Position SignalBattery Voltage {lGN.1}Erake Switch SignalPSP Switch SignalFuel Tank Pressure Sensor*iVTEC Pressure Switch*5Clutch Switch Signal*6Countershaft Speed SensornBMainshaft Speed Sensorrs
-\
----t /
F;ilrr j"-----fi-tri-'r.;l
Fb"t."'i" d" c;;il
F,h"'c;;tr*".io";-l
@."r.l"sc;;ll
EaM/PcM B""k-p F"""till
r\
-:/
Fuel IniectorsPGM-Fl Main Belay {Fuel Pump)MILIAC Valve!y'C Compressor Clutch RelayRadiator Fan Relay*,Condenser Fan RelayALT*'lcMEVAP Purge Control Solenoid
Primary HO2S HeaterSecondary H02S HeaterEGR Control Solenoid Valve*rEGR valve*6EVAP Bypass Solenoid Valve*'EVAP Control Canister Vent Shut
VTEC Solenoid Valve*5DLCLock-up Control Solenoid Valve*aShift Control Solenoid Valve*3Linear Solenoid Valve*3
*1: Dl6Y5 engine*2: USA model*3: CW (D16Y5 ensine), D16Y8 engine and 81642 ensine*4: '96 D16Y8 engine lcoupe),'97 Dl6Y7 engine (coupe: KL model, sedan: KL (LX) model),'97 D16Y8 engine {coupe: all models, sedan: KLmodel),'98-all models,'99'all models,'00-all models+5: D16Y5, D16Y8,816A2 engine*6: M/T (D16Y5 enginei*7: CVT 1D'l6Y5 engine)+8: A/T (D16Y7, D16Y8 engine)*9: '96 D16Y5 engine,'96 D16Y7 engine,'96 Dl6Y8 engine (sedan),'97 D16Y5 engine,'97 Dl6Y7 engine (coupe: KA, KC models, sedan:KA, KC, KL (LX) models, hatchback: all models),'97 D16Y8 engine (sedan: KA, KC modelsi
PGM-FI Sy3lem
The PGM-Fl system on this model is a sequential multipon fuel injection system.
Fuel iniector Timing and Duration
The ECM/PCM contains memories for the basic discharge durations at various engine speeds and manifold air flow rates.
The basic discharge duration, after being read out from the memory. is further modified by signals sent from various sen-
sors to obtain the final discharge duration.
ldle Air Control
ldle Air Control Valve llAC Valve)
When the engine is cold. the A,/C compressor is on, the transmission is in gear, the brake pedal is depressed, the P/S load
is high, or the alternator is charging, the ECM/PCM controls current to the IAC Valve to maintain the correct idle speed.
lgnition Timing Control
. The ECM/PCM contains memories for basic ignition timing at various engine speeds and manifold air flow rates.
lgnition timing is also adjusted for engine coolant temperature.
. Aknockcontrol system was adopted which sets the ideal ignition timing for the octane rating ofthegasoline used.*3
Othgr Control Funqtions
1. Starting Control
When the engine is started, the ECM/PCM provides a rich mixture by increasing fuel injector duration.
2. Fuel Pump Control
. When the ignition switch is initially turned on, the ECM/PCM supplies ground to the PGM-Fl main relay that sup-plies current to the fuel pump for two seconds to pressurize the fuel system.. When the engine is running, the ECI\4PCM supplies ground to the PGM-FI majn relay that supplies current to the fuel
oumo.
. When the engine is not running and the ignition is on, the ECM/PCM cuts ground to the PGM-FI main relay which
cuts current to the fuel pump.
11-104
INPUTS
ENGINE CONTROL MODULE (ECMY
POWERTRAIN CONTROL MODULE (PCM) OUTPUTS

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