Disc HONDA CR-V 2000 RD1-RD3 / 1.G User Guide

lgnition Control Module (lCMl Input Test
NOTE:
. See section 11 when the malfunction indicator lamp(MlL) comes on.
. Perform an input test for the ignition control module(lCM) after finishing the fundamental tests for the
ignition system and the fuel and emissions systems.
. '97 -'98 models: The tachometer should operate nor-
mally if the ICM is OK.
L Remove the distributor ignition (Dl) cap, the distrib-
utor ignition (Dl) rotor, and the leak cover.
2. Disconnect the wires from the lCM.
8LU WIRE{'97 - '98 models}
4-19
7.
Turn the ignition switch ON {ll). Check for voltage
between the BLK,^/EL wire and body ground. There
should be battery voltage.
. lf there is no battery voltage, check the BLK/rEL
wire betlveen the ignition switch and the lclvl.
. lf there is baftery voltage, go to step 4.
Turn the ignition switch ON (ll). Check for voltage
between the WHT/BLU wire and body ground. There
should be battery voltage.
. lf there is no batteryvoltage, check:- ignition coil.- WHT/BLU wire between the ICM and ignition
corl.
. lf there is battery voltage, go to step 5,
'97 model: Disconnect the ECM/PCM connector A(32P). Check for continuity on the YEL/GRN wire
between the ICM and ECM/PCM. There should be
continuity.'98 - 00 models: Disconnect the ECM,PCM connector
B (25P). Check for continuity on the YEUGRN wire
between the ICM and ECM/PCM. There should be
continuity.
Check for continuity on the YEUGRN wire to body
ground. There should be no continuity.
Reconnect the ECM/PClvl connector.
'97 -'98 models: Check for continuity on the BLU
wire between the test tachometer connector and the
lCM. There should be continuity.
'97 -'98 models: Check for continuity on the BLU
wire to body ground. There should be no continuity.
lf all the tests are normal, replace the lCM.
9.
'10.
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in(From previous page)
Does the charging systemlight come on?
Ch6ck the L circuil:1. Turn the ignition switch OFF.2. Disconnect the 4P [3P] con-nector from the alternator.3. Turn the ignition switch ON (ll).
Repair the short to ground in theWHT/BLU wire.
[ ]: Canada model(cont'd)
4-25
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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)
4-26
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R'oR
l
u
'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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Charging System
Alternator Replacement
't.Disconnect the battery negative terminal first, thenthe positive terminal.
Disconnect the 4P (or 3P) connector and WHT wirefrom the alternator.
WHT WIRE
4-30
'll
Remove the adjusting bolt and mounting nut, thenremove the alternator belt.
Pull out the through bolt, then remove the alternator.
THROUGH BOLT
ll^I}v
N
ir
T
n
MOUNTING NUT10 x 1.25 mm44 N.m 14.5 kgf.m.33 tbtfttt
o.
LOCKNUT8 x 1 .25 mm24 N.m (2.4 kgt m, 17 lbl.ft,
Install the alternator in reverse order of removal.
Adjust the alternator belt tension after installation(see page 4-34).
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Cruise Control
Control Unit Input Test
SRS components are located in this area. Review the SRS component locations. precautions, and procedures in the SRS
section (241 before performing repairs or seryice.
'1. Remove the driver's dashboard lower cover and knee bolster {see section 20).
2. Disconnect the 'l4P connector from the control unit.
3. Inspect the connector and socket terminals to be sure they are all making good contact
lf the terminals are bent, loose, or corroded, repair them as necessary, and recheck the system.
lf the terminals look OK, make the following input tests at the connector.- lf any test indicates a problem. find and correct the cause, then recheck the system.
- lf all the input tests prove OK, the control unit must be faulty; replace it.
*: '98 - 00 models withAutomatic Transmission.Wire side ol female terminals
4-38
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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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Cruise Control
1.
Main Switch Test/Replacement
Carefully pry the switch out of the instrument panel.
Disconnect the 6P connector from the switch,
Terminal side of malerermtnats
6P CONNECTOR
/
Check for continuitv between the terminals in each
switch position according to the table.
lf there is no continuity, replace the switch.
BULES {0.84 Wt
Terminal
;;;
-_\56
OFFG-@oG(9,{)
ONG@-oo-@-o
4-40
Set/Resume Switch
Test/Replacement
1.Disconnect the baftery negative cable, then discon-
nect the positive cable, and wait at least three min-
utes.
Disconnect the driver's airbag and front passenger's
airbag connectors (see section 24).
Remove the dashboard lower cover and knee bolster.
Disconnect the 6P connector between the cable reel
sub harness and the main wire harness.
4.
Wire side of temale terminals
Check for continuity
6P connector in each
the table.
between the terminals of the
switch position according to
Terminal
;;;
--_l2
SET (ON)o--o
RESUME (ON)Cf-c
a
lf there is continuity. and it matches the table,
the switch is OK.
lf there is no continuity in one or both positions,
go to step 6.
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n-
n-
6. Remove the two screws. then remove the switch.
Check for continuity between the terminals in each
switch position according to the table.
. lf there is continuity, and it matches the table,
replace the cable reel.
. lf there is no continuity in one or both positions,
replace the switch.
lf all tests prove OK, reconnect the cable reel sub-
harness connector.
Reconnect the driver's airbag and front passenger's
airbag connectors, and reinstall the access panel on
the steering wheel.
Reconnect the battery positive cable. then the nega-
tive cable.
After connecting the airbag connectors, confirm
proper system operation: Turn the ignition switch ON
(ll); the SRS indicator light should come on for about
six seconds and then go off.
,s
r.
1e
to
7.
l
9.
10.
SET/RESUME
Terminal
t*,r*
-__\l23
SET ION)o----o
RESUME (ON)o----o
11.
4-41
1.
Actuator Test
Disconnect the actuator cable trom the actuator rod
and the 4P connector.
Connect battery power to the No. 4 terminal and
ground to the No. 1, No. 2 and No. 3 terminals,
Connect a vacuum pump to the vacuum hose. Then
apply vacuum to the actuator.
VACUUM PUMP GAUGE0-30 in.Hg.A973X-041-XXXXX
Terminalside otmale terminals
The actuator rod should pull in completely. lf the rod
pulls in only part-way or not at all, check for a leak-
ing vacuum Iine or defective solenoid.
ACTUATOB ROD
(cont'd)
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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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