engine HONDA CR-V 1997 RD1-RD3 / 1.G Owner's Guide

Charging System
Troubleshooting (cont'dl
'97 modol: Alternator Control System Test {U.S.A. model)
NOTE: Before testing, check proper operation ofthe ELD by checking for a DTC (see section .11).
CAUTION: Be sure to use a voltmeterwith ils positive terminal connected tobattery positive and hs negative termi-nalto the 4P connector terminal No. 2.
BATTERY
Wire side offemale terminals
{WHT/GRNI
ALTERNATORirP CONNECTOR
ALTEFNATOR4P CONNECTOR
Chock for a short in the circuitIALTC line):1. Disconnect the 4P connectorfrom the alternator.2. Start the engine, and turn theheadlights thigh beami ON.3. Me8sure voltage between the4P connector terminal No. 2and the positive terminal ofthe battery.
lstherelVorless?
Check for an open in the wire(ALTC linel:1. Turn the headlight and igni-tion switch OFF.2. Disconnect the 32P connectorfrom the ECN4/PCM.3. Check tor continuity betweenthe EcM/PcM 32P connectorterminal No.30 and alternator4P connector terminal No. 2-
Repair open in the wi.e betwoenthe atternator and ECM/PCM.ls there continuity?
Check for a shorl in the wiroIALTC line):1. Turn the headlight and ign;,I|on swrtcn UFF2. Disconnect the 32P connectorfrom the EcM/PcM.3. Check tor continuity betweenthe ECM/PCN4 32P connectorterminal No. 30 and bodyground.
Subslitute a known-good ECM/PCM, and recheck.It prescribed voha96 b now avail-able, replace the original ECM/PCM.
ls there continuity?
R€prir short in the wire betweenthe altornator and the ECM/PCM.
ECM/PCM CONNECTOR A I32PI
,/1./1810
./ l./t4161718t9202121
26272A293032
Wire side of ] ALTCfemale terminals I tWHT/cRNl
tlWHT/GRN)
female terminals
I
1
ECM/PCM CONNECTOR A {32P}
,/ ,/46810
,/1,/1416l7t8'1920212321
272A2S30:t2
Wire side of I ALTCfemale terminals {WHT/GRNI
f)
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R'oR
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'98 -'9O modols: Alternator Contlol SYstem Te3t (U.S.A' model)
NOTE: Before testing, check proper operation of the ELD by checking for a DTC (see section 11)
EATTERY
CAUTION: Be surc to uso a voltmetorwith its oo3itive torminel connccted to
battery po3hivo tnd its negativo teami'
nal to the 4P connector torminal No 2.
ECM,/PCM CONNECTORc {31P)
Wire side olfemale terminals
cIWHT/GRN)
Wire side oltemale terminals
ALTERNATOR4P CONNECTOR
ALTC
IWHT/GBNI
ECM/PCM CONNECTOR C {31P}
(cont'd)
Chock tor . short in tha circuit
IALTC lino):1. Disconnoct the 4P connectorIrom the alternator.2. Start the engine, and turn the
headlights (high beam) ON.
3. Measure voltage between the4P connector terminal No. 2
and the positive terminal oIthe battsry.
lsthere 1V or less?
Check for an opon in the wire
IALTC line):1. Turn the headlight and igni-
tion switch OFF.2. Disconnect the 31P connectorfrom the ECM/PCM.3. Check tor continuity betweenth6 ECM/PCM 31P connectorterminal No. 2 and alternator4P connector terminal No. 2.
Ropair open in the wiro betweenthe ahornrtor and ECM/PCM.
Chack lor a rhort in tho wire
{ALTC lincl:'!. Turn the headlight and igni'tion switch OFF.2. Disconnect the 31P connectorIrom the ECM/PCM.3. Ch6ck for continuity betweenthe ECM/PCM 31P connectorterminal No. 2 and bodyground.
Substituto . known-good ECM/
PCM, .nd rochock.lf prdcdb€d voltage b now av.il-able, repl.ce the original ECM/
rcM.
Rcpair rhort in thc wire b.twconth. ahGrn.tol.nd the EcM/PcM.
4-27
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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
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From previous page
The charging sy3tem b OK.ls the amperage 65 A or more?
Aharnator/Regulator Tesl (cont'd):
With the engine speed still at
2.000 rom, fulllield the alternator.
CAUTION: The voh.ge will tise quickly whon th. ahornato. is tull-li.lded Do not allow
the voltage to exceod 18 V; it mry damago the .loctrictl 3yaiGm.
NOTE: Attach a probe to a VAT-40Iull tield test lead, and inseft the probe into the tull field
access hole at the back of the altemator' Switch the field selector to the "A lGround)" posi-
tion momentarily. and check the amperage readrng.
REGULATOR(Located insidethe ond coverlFULL FIELDACCESS HOLE
4-29
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Charging System
Alternator Belt Inspection and Adjustment
NOTE: When using a new belt, first adjust the deflectionor tension to the values for the new belt, then readjustthe deflection or tension to the values for the used beltafter running engine for five minutes.
Deflection methodi
Apply a force of 98 N (10 kgt,22lbll, and measure thedeflection between the alternator and crankshaft pulley.
Detlection:
Used Belt:8.5 - 11.5 mm (0.33 - 0.45 inlNew Beft: 5.5 - 8.0 mm 10.22 - 0.31 inl
NOTEr lf the belt is worn or damaged, replace it.
Measure here
4-34
Belt tension gauge m6thod:
Attach the belt tension gauge to the belt and measure thetension. Follow the gauge manufacturer's instructions.
Tension:
Used Belt:340 - /€0 N (35 - 50 kgf, 77 - 1r0 tbf)New Belt: 690 - 880 N (70 - 90 kgf, 150 - 200 tbt)
NOTE: lfthe belt is worn or damaged, replace it.
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Disconnest the lilP connector from the control unit.
Csvity WireTest condition
R€conn€ct tho 14P connGctor to the control unit.
Test: Desired resultPossible cause it result is not obtained
BRNAr'VHTUnder all conditionsCheck for resistance to groundl
There should be 80 - 120 o.
Faulty actuator solenoid
Poor ground (G202)
An open in the wire1BRNUnder all conditionsCheck for resistance to groundl
There should be 40 - 60 0.
11BRN/BLKUnder all conditionsCheck for resistance to ground:
There should be 70 - 110 O.
2GRY
lgnition switch ON (ll),
main switch ON and
brake pedal depressed,
then released
Check for voltage to ground:
There should be 0 V with the pedal
depressed and battery voltage with
the pedal released.
. Faulty brake switch. An open in the wire
BLKUnder all conditionsCheck for continuity to ground:
There should be continuity.
. Poor ground (G401). An open in the wire
5GRNMHT
Brake pedal depressed,
then released
Check for voltage to ground:
There should be battery voltage with
the pedal depressed, and 0 V with
the pedal released.
Blown No.52 1'15 Alfuse in the
under-hood fuse/relay box
Faulty brake switch
An open in the wire
LT GRN/
RED
Set button pushedCheck for voltage to ground:
There should be battery voltage.Blown No. 52 {'15 A} fuse in the
under-hood fuse/relay box
Faulty horn relay
Faulty sevresume switch
Faulty cable reel
An open in the wire7LT GRN/
BLK
Resume button pushed
10RED/BLU
lgnition switch ON lll)Attach to ground:
Cruise indicator light in the gauge
assembly should come on.
Elown bulbBlown No. 25 (7.5 A) tuse in theunder-dash fuse/relay box
Faulty dimming circuit in the gauge
assembly
An open in the wire
ELU^r'r'HT
lgnitjon switch ON {ll}and main switch ON;
raise the front of the
vehicle, block one wheel
and rotate the other
wheel slowly.
Check for voltage between the
ELUA/VHT @ and BLK O terminalsl
There should be 0 - 5 V or more-0 - 5 V or more repeatedly.
Faulty vehicle speed sensor (VSS)
An open in the wire
r3LT GRN
lgnition switch ON {ll}and main switch ONCheck for voltage to ground:
There should be battery voltage.
Blown No. 14 (7.5 A) fuse in theunder-dash fuse/relay box
Faulty main switch
An open in the wire
l4PNK
A'/T: Shift lever in E, EotE
lvl/T: Clutch pedal
releaseo
Check for continuity to ground:
There should be continuity.NOTE: There should be no continu-
ity when the shift lever is in otherpositions or when the clutch pedal is
oepresseo.
Faulty A/f gear position switch 1A,/TlFaulty or misadjusted clutch switch
fi{/r)Poor ground (G101)
An open in the wire
BLU
Start tho engine. turnthe main switch ON, anddrive the vehicle over 25
mph (40 km/h)with the
crurse control set
Check for voltage to ground:
There should be approx.5 V
. Faulty cruise control unit. Shod to ground
*: '98 - 00 models with Automatic Transmission.
4-39
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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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Engine
Engine RemovaUlnstallation ................ 5-1
Cylinder Head/Valve Train ................... 6-1
Engine Bfock .......... ...........7-1
Engine Lubrication ...........8-1
Intake Manifold/Exhaust System ........ 9-1
Cooling ......... 10-1
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Engine RemovaUlnstallation
Engine Removal/lnstallation
Removal ......................... 5-2
lnstallation .....................5-12
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Engine RemovaUlnstallation
Removal
@a Make sure iacks and safety stands are placed properly
and hoist brackets are attached to the correct oosi-
tions on the engine.
. Make sure the vehicle will not roll oft stands and fall
while you are working under it.
NOTEI
. Use fender covers to avoid damaging painted sur-
faces.
o To avoid damage. unplug the wiring connectors care-
fully while holding the connector portion.
lvlark all wiring and hoses to avoid misconnection.
Also, be sure that they do not contact other wiring or
hoses, or interfere with other parts.
Secure the hood in the open position.
Disconnect the battery negative terminal first, then the
positive terminal.
Disconnect the battery cables from the under-hood
fuse/relay box and battery positive terminal.
1.
2.
4. Remove the batterv and batterv base.
BATTERYBASE
I x 1.25 mm24 N.m (2.4 kgf.m,17 tbnft)-t'.-e
F
FY
5. Remove the intake air duct and air cleaner housino.
INTAKE AIB
I
6.
7.
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