Pedal accelerator HONDA CR-V 2000 RD1-RD3 / 1.G Workshop Manual

Gharging System
Troubleshooting (cont'd)
Alternator/Regulator Test
NOTE: Make sure the battery is sufficiently charged (see section 23).
FIELDSELECTOR
TESTswtTcH
I
VOLTMEIERPOSmVEt
NEGATIVE TESTERCABI.E {BLKI
(BED)
TESTERINDUCTIVEPICK.UP{GRN)CABLE IREDIAhernator/Regulator Test (cont'd)lI Release the accelerator pedal,and let the engine idle.2 Make sure all accessories areturned off. Turn the selectorswitch to posjtion 2 (charging).3 Remove the inductive pick up,and zero the ammeter.{ Place the inductive pick-upover the battery ground cableso that the arrow points to thebaftery negative terminal.5. Raise the engine speed to2 000 rpm, and hold ir there.
I
(
T
I
WHT WIRE
Alternator/Regulator Test:1. Connect a Sun VAT-40 (orequrvalent tester), and turnthe selector switch to position1{sraning).2. Shift to neutral (A/T in E orN) position, and start theengane. Hold the engine at3,000 rpm with no load untilthe radiator fan comes on,then let it idle.3. Raise the engine speed to2,000 rpm, and hold it there.
ls the voltage over 15.1 V?
ls the voltage less than 13.5 V?
Altarnator/Regulator Test (cont'd:Apply a load with a VAT-40 untilthe battery voltage drops tobetween 12 - 13.5 V.
To next page
4-28
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Cruise Gontrol
Actuator Test (cont'dl
5. With voltage and vacuum still applied, try to pull the
actuator rod out by hand. You should not be able topull it out. lf you can. it is defectrve.
8.
9.
7.
Disconnect ground from the No. 3 terminal. The actu-
ator rod should return. lf it does not return, but the
vent hose and filter are not plugged, the solenoid
valve assembly is defective.
Repeat steps 2 through 5. and disconnect ground
from the No. l terminal. The actuator rod should
return. lf it does not return, but the vent hose and
filter are not plugged, the solenoid valve assembly
is defective.
lf you replace the solenoid valve assembly, be sure
to use new O-rings on each solenoid.
Disconnect power and ground from the 4P connector.
Disconnect the vent hose from the actuator. Connect
a vacuum pump to the actuator vent hose port, and
apply vacuum. The actuator rod should pull in com-pletely. lf not, the vacuum valve is stuck open.
Replace the actuator,
4-42
I
't.
Actuator Replacement
3.
4.
7.
Ar
Pull back the boot. and loosen the locknut. Then dis-
connect the cable from the bracket.
Disconnect the cable end from the actuator rod.
1.
4.
.J.
Disconnect the 4P connector from the actuator.
Disconnect the vacuum hose from the vacuum tank.
Pull out the vent hose.
Remove the three mounting bolts and the actuator
with the bracket.
ACTUATORACTUATOR
CABLE
lf necessary, disconnect the cable end from the link-
age over the accelerator pedal, then turn the grom-
met 90' in the bulkhead. and remove the cable.
Install in the reverse order of removal, and adjust
free play at the actuator rod after connecting the
cable (see page 4-43).
I
6.
I
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Actuator Cable Adiustment
'1.Check that the actuator cable operates smoothly
with no binding or sticking.
Start the engine. Hold the engine at 3,000 rpm with
no load (A,/T in E or E position, M/T in neutral)
until the radiator fan comes on, then let it idle.
Measure the amount of movement of the actuator
rod until ths cable pulls on the accelerator lever
(engine speed starts to increase). Free play should
be 11 t 1.0 mm (0.43 i 0.04 in).
LOCKNUT FREE PLAY: 11 t 1.0 mm
10.43 r 0.04 in)
lf free play is not within specs, loosen the locknut,
and turn the adjusting nut as requirsd,
NOTE: lf necessary, check the throttl€ cable frso
play (s€e section 11), then recheck the actuator rod
free play.
Retighten the locknut, and recheck the free play.
st
te
ACTUATOR ROD
Clutch Switch Test
1. Disconngct ths 2P connector from the clutch switch.
CLUTCH SWITCH 2P CONNECTORTerminalside ofmale terminals
2.
5.
Remove the clutch switch,
Check for continuity between the terminals accord-
ing to the table.
4. lf necessary, replace the switch or adjust the pedal
height (see section t2).
Terminal
Clutch Switch \
OEPRESSED
RELEASEDoo
4-43
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Troubleshooting
Troubleshooting Procedures (cont'd)
DataDescliptionOperating ValueFreezo Data
HO2S
Feedback
Loop Status
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 ofinjected fuel.
Open: ignoring HO2S output, the ECM/pCiM refers to sig,nals from the TP, MAP, and ECT sensors to control theamount of injected fuel.
At idle speed: closed
YES
Short Term
Fuel Trim
The airlfuel ratio correction coefficient for correcting theamount of injected fuel when HO2S feedback is in theclosed loop status. When the signal from the HO2S isweak, short term fuel trim gets higher, and the ECM/PCMincreases the amount of injected fuel. The airlfuel ratiogradually gets richer, causing a higher HO2S output.Consequently. the short term fuel trim is lowered. andthe ECM/PCM reduces the amount of injected fuel.This cycle keeps the airfuel ratio close to the stoichio-metric ratio when in closed looD status.
t:20y"
YES
Long Term
Fuel Trim
Long term fuel trim is computed from shon term fueltrim and indicates changes occuring in the fuel supplysystem over a long period.
lf long term fuel trim is higher than 1,00. the amount ofinjected fuel must be increased. lf it is lower than L00.the amount of injected fuel must be reduced.
! 20%
Intake Air
Temperature
(IAT)
The IAT sensor converts intake air temperature into volt-age and signals the ECrU/PCM. When intake air tempera-ture is low, the internal resistance of the sensorincreases, and the voltage signal is higher.
With cold engine:
Same as ambient temper-
ature and ECTYES
Throttle
Position
Based on the accelerator pedal position, the openingangle of the throttle valve is indicateo.At idle speed:
approx. 10%
lgnition
Timing
lgnition timing is the ignition advance angle set by theECM/PCM. The ECM/PCM matches ignition timing to thedriving conditions.
At idle speed: 16'1 4.
BTDC with the SCS ser-
vtce connector connected.
NO
Calculated
Load Value(cLV)
CLV is the engine load calculated from the MAp data.At idle speed:
2A - 410/o
At 2,500 rpm with no load:
13 - 260/o
YES
_
1 1_66
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ldle Control System
ldle Speed Setting (cont'd)
38 - 0O mod6l3:
NOTE: Before setting the idle speed, check the follow-
ing items:- The MIL has not been reported on.- lgnition timing- Spark plugs
- Air cleaner- PCV system
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.
Connect a tachometer.
Disconnect the IAC valve 2P connector and the EVAP
purge control solenoid valve 2P connector.
CONTROLSOLENOID VALVE
SOLENOID VALVE
lf the engine stalls, restart the engine with the accel-
erato. pedal slightly depressed. Stabilize the rpm at
1,000, then slowly release the pedal until the engine
idles.
Che€k the idle in no-load conditions: headlights, blow-
er fan, rear defogger, radiator fan, and air conditioner
are not operating,
ldle speed should bo:
480 t 50 rpm {in PErk or noutrall
11-170
lf necessary, adjust the idle speed, by turning the
idle adjusting screw.
After adjusting the idle speed, recheck the ignition
timing (see section 4). lf it is out of spec, go back to
steo 4.tDt.E
6. Turn the ignition switch OFF.
7. Reconnect the 2P connectors to the IAC valve and
the EVAP purge control solenoid valve, then do the
ECM/PCM reset procedure.
8. Restart and idle the engine with no-load conditions
for one minute, then check the idle speed.
ldle speod should be:,98 model:
750 t 50 rpm tin Park or neutral)'9!l - 00 modsls:
730 i 50 lpm lin Psrk or neutral)
NOTE: lf the idle speed increases to 780 t 50 rpm(770 1 50 rpml*, this means the EVAP system is
purging the canister. To stop the purging temporari-
ly, raise the engine speed above 1,000 rpm with the
accelerator pedal, then slowly release the pedal.*: '99 - 00 models
9. Let the engine idle for one minute with the head-
lights (Low) ON, and check the idle speed.
ldle speed should be:
38 mod6l:
750 f 50 rpm (in Palk or neutrall'99 - 00 modols:
730 t 50 rpm (in Palk or neutral)
10. Turn the headlights off. Let the engine idle for one
minute with the heater fan switch at Hl and air con-
ditioner on, then check the idle speed.
ldls spqed should be:'98 model:
780 t 50 rpm (in Park or neutrall'99 - 00 mod€ls:
7701 50 rpm lin Park or neutral)
lf the idle speed is not within specification. see the
Symptom Chart on page 11-64.
ADJUSTING
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Intake Air System
Air Cleaner
Air Cleaner Eloment Rsplacomsnt
NOTE: Do not clean the air cleaner element by blowingit off with compressed air,
AIR CLEANER ELEMENTNo.mal conditions:Replace air cleaner element every30,000 miles {48,000 km) or 24months whichever comes first.Severe condition3:Replace air cleaner element every15,000 miles 124,000 km) or 12months whichever comes tirst.
m
11-194
Throttle Cable
Inrpection/Adiustmcnt
1. Stan the engine. Hold the engine at 3,000 rpm with noload (in Park or neutral) until the radiator fan comeson, then let it idle.
2. Check that the throttle cable operates smoothly withno binding or sticking. Repair as necessary,
3. Check cable free play at the throttle linkage. Cabtedeflection should be 10- 12 mm (3/8 - 1l2in.l.
'97 - 98 modols:
CABLEBRACKET
LOCKNUT
DEFLECTION10-12mmBIA- 112 i^l
'99 - 0O modsls:
lf deflection is not within specs, loosen the locknut,turn the adjusting nut untilthe deflection is as speci-fied, then retighten the locknut.
With the cable properly adjusted. check the throttlevalve to be sure it opens fully when you push theaccelerator pedal to the floor. Also check the throt-tle valve to be sure it returns to the idle position
whenever you release the accelerator pedal.
DEFLECTIONl0-12mft
Bla - 112 inl
NUT
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PCM CONNECTOR B (25P) lcont'd)
PCM CONNECTOR C {31PI
PCM CONNECTOR D II6PI
Terminal NumbelSignalDescriptionMeasuring Conditions/Terminal voltage
811SHBShift control solenoid valve B
control
In E, E position, in 1st and 2nd gear in -q,
Er position: Battery voltage
In B position, in 3rd gear in qd, q:l,in atn
gear in D. position: 0 V
812ILUlnterlock controlWhen ignition switch is ON (ll), brake pedal
deDressed and accelerator oedal released:0 V
B13D4 INDD4 Indicator light controlWhen ignition switch is first turned ON (ll): 6 V
or more for tlvo seconds
In lDll position: 6V or more
814NMSGMainshaft speed sensor ground
815NMMainshaft speed sensor signal
InpuI
Depending on engine speed: Pulsing signal
When engine is stopped: 0 V
816ATP RAy'T gear position switch Eposition signal input
In E position; OV
In other than E position: Battery voltage
817ATP 2Ay'T gear position switch E posi-
tion signal input
InEposition:0V
In other than E position: Battery voltage
B18ATP 1A/T gear position switch El posi-
tion signal input
InEposition:0V
In other than E position: Battery voltage
819 to 821Not used
B22NCSGCountershaft speed sensor ground
NCCountershaft speed sensor signal
Inpur
Depending on vehicle speed: Pulsing signal
when vehicle is stooped: 0 V
824ATP D4A/T gear position switch iql posi-
tion signal input
In E position: 0V
In other than lgal position: Baftery voltage
825ATP NPAy'T gear position switch E and
N position signals input
In E and E positions: 0V
In otherthan @ and ffi positions:5 V
Terminal NumberSignalDescriptionMeasuring Conditions/Terminal Voltage
SCSService check signalWith ignition switch ON (ll) and service check
connector open: 5 V
With ignition switch ON (ll) and service check
connector connected with special tool: 0 V
c10VBUBack-up power system(under-hood Fuse 47)
Always battery voltage
Terminal NumberSignalDescriptionMeasuring Conditions/Terminal Voltage
STOP SWBrake switch signal inputBrake pedal pressedr Battery voltage
Brake pedal released: 0 V
14-49
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PCM Terminal Voltage/Measuring Conditions
A/T Control System -'98 - 00 Models
The PCM terminal voltage and measuring conditions are shown for the connector terminals that are related to the A"/T con-
trol system. The other PCM terminal voltage and measuring conditions are described in section 11.
FCM Connector Terminal Localions
NOTE: 819 and C3 terminalsare applied to'99 - 00 models.
o (16Pt
T6rminal NumberSignalDescriptionMeasuring Conditions/Terminal Voltage
A5CRSDownshift signal input from
cruise control unit
When cruise control is used; Pulsing signal
A10scsTiming and adjustment service
check signal (5 V from PCM)
With ignition switch ON (ll) and service check
connector open:5 V
With ignition switch ON (ll) and service check
connector jumped with special tool: 0 V
A14('98 model)
D4 INDD4 indicator light control
{Voltage from PCM turns D4 light
oN)
When ignition switch is first turned ON (ll):
Battery voltage for two seconds
In E position: Battery voltage
A14
('99 - 00 models)
D INDD indicator light control(Voltage from PCM turns D light
oN)
When ignition switch is first turned ON (ll):
Baftery voltage for two seconds
ln E position: Battery voltage
428ILUInterlock control(Voltage from PCM)
When ignition switch ON {ll), brake pedal
depressed, and accelerator pedal released:
Battery voltage
A.32STOP SWBrake switch signal inputBrake pedal pressed; Battery voltage
Brake pedal released: 0 V
FCM CONNECTOR B I25P}
Terminal NumberSignalDescriptionMeasuring Conditions/Terminal Voltage
B1IGPlPower supply circuit from main
relay via under-hood Fuse 44
With ignition switch ON {ll): Battery voltage
With ignition switch OFF: 0 V
82PG1Ground (G101)
B8LSMLinear solenoid power supply
negative electrode
IG P2Power supply circuit from main
relay
With ignition switch ON (ll): Baftery voltage
With ignition switch OFF: 0 V
810PG2Ground (G101)
B17Linear solenoid power supply
positive electrode
With ignition switch ON (ll): Pulsing signal
819
('99 - 00 models)
O/D INDOver-Drive (O/D) OFF indicator
light control
When ignition switch is first turned ON (ll):
0 V for two seconds
O/D OFF indicator light ON:0 V
O/D OFF indicator light OFF: Battery voltage
s20Ground (G101)
B21VBUBack-up power supply(under-hood Fuse 47)
Always battery voltage
B22LG2Ground (G101)
14-54
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Electrical Troubleshooting ('98 - 00 Modelsl
Troubleshooting Flowchart - Interlock System - Shift Lock System
NOTE: li the MIL is on, ropair the PGM-FI controt system{see section 11), and recheck.
PCM CONNECTORS
c l3lPl
Wire side of female lerminals
c t3lPt
D {16P1
1 tttt/ 5t/ 1 a t /tlt 1 t\/t ,/ VVV tl t ttj,r\1e\10l211n . I 3 rholr1 t?m@-@Effilil"
D (lCPl
| 2ttt/ ;t /n) ).tt)/ 1 21:/ tvvvvv nnvl.lnl2
I r r ero

12wE gp]P] polr EI!l!!i r.
a (25P1
LGl {8RN/ALKI
Shift levor cannot be mov6dllom the E po3ition when th6blako pedal is pre3sed.
Ch€ck BJake Light Oporation:Press the brake pedal.
B6pair tlutty brrko 3whch circuitl..e rection 231.Are the brake lights ON?
Me.sure ILU Voltage:1. Turn the ignition switch ON (ll1,and shiftto E position.2. Press the brake pedal, andrelease the accelerator pedal.3. Measure the voltage betweenthe A28 terminal and bodygrouno.
Chock tor an open or short in thewi.o botwoen tha A28 t6rminrland thc intorlod( control unit, rndcheck tor loose torminrl fit in theintorlock conftol unh connoctor. lfnocassaryr aubstitute a known-good intollock control unit rndroch6d(
Mor3uro STOP SW vohsgo:1. Turn the ignition switch OFF.2. Disconnect the A (32P1 and B(25P) connectors {rom thePCM.3. Measure the voltage betweenthe A32 and 820 or 822 termi-nals,
Repair op6n in tho wir€ betwsenthe A32 t6.minal and th6 brake3witch.
ls there battery voltage?
fo page 14-121
14-126
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Road Test
NOTE: Warm up the engine to normal operating temperature (the radiator tan comes on).
1. Before testing, check the transmission fluid level, see page 14-160.
2. Apply the parking brake and block the wheels. start the engine, then shift to E {'97 - 98) or E {'gg - 00) position
while pressing the brake pedal. Press the accelerator pedal and release it suddenly. The engine should not stall.
3. Repeat same test in E position ('97 - 98 models).
4. Test-drive the vehicle on a flat road in the E or E position. Check that the shift points occur at approximate speeds
shown on a flat road. Also check for abnormal noise and clutch slippage.
Throttle position sensor voltage represents the throttle opening. Monitor it with the Honda PGM Tester or as follows:
a. Unbolt the PCM for road testing; reJer to page 14-58.
b. Set the digital multimeter to check throttle position sensor voltage between these terminals on the PCM:
. '97 Model: Between terminals D'! (+) and A9 (-) or A22 {-}
. '98 - OO Models; Between terminals C27 (+) and 820 (-) or 822 {-)
BACKPROBE ADAPTER
BACKPROBE SETorsAz - 001moA(two roquircdl
STACKING PATCH
CORD
DIGiTAL MULTIMETER
{Comm€rcirllY .vailablc}KS-AHM-32-003,or equival.nt
'97 Model:PCM CONNECTORS
'98 - 0O Models:
A l32Pt
Wire side of female terminals
PCM CONNECTORS
B {25Pt c l31P}
(cont'd)
LGl (BRN/BLK)
'. //B 1 l'o ti , jl. to a 2r / / 11111t1.t nait la t1 t213tr / t6t, tl / / / / 1 3 / 10n v
t-'a:IM-&E -Llfiffi-fl)\"".'E
Wire side ot female termanals14-157
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