1999 HONDA CR-V Workshop Manual

From page 22-22
Chgck for a short to power:
Check th6 same wires lor voltage.
Ropair lhort to powor in the wiiobetw6an tho mode comrol motorend thc hoat.r cont.ol pan.l.(This damagF tha h€ator Gontrolpancl.l
Chack for an opon in tha wiles:Check lor continuity between thefollowing terminals oI the mode
control motor 7P connector andthe heater control panol 20P con-nector.20Pt 7P.No. 12 - No. 3No. '13 - No. 4No. 14- No.5No. 15 - No. 6No. t6 - No. 2No. 19 - No. 7
R.pair any opon in tho wilols)betwaen th6 modg cortrol motorand th. heatar control p.nsl.
Chock fo. loose wiret or pool
connections at the heat6r controlpancl 20P connector and tt themodo control motor 7P connoc-tor. lf tho connactions sre good,
substitute a known-good hortcrcontrol pan6l, and tech.ck. lf thesymptom/indication goes awaytroplaco tho original hcater @nttolp3nel.
HEATER CONTROL PANEL 2OP CONNECTOR
12'VVLgl8910
't112rslrrlrslre17181920
8LU/BLX
:L/BLUBRN/WHT
BRN/WHT
BRN/WHT
Wire side ot female terminals
MODE CONTROI- MOTOR 7P CONNECTORWire side ol temale terminals
2,/1,/l/II10
111213t14t151511181920
BLU/BL
GRi
YEL/
Kt I I|/YEL I IIYEL/REDI
t-BLUI q
;f;T;T;
YEL/BLU
YEL
BLU/BLK
GRN/ItEL
YI:L/FED
22-23
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Troubleshooting
Recirculation Gontrol Motor
YES
To page 22-25
REORCULATION CONTROL MOTOR,rP CONNESTOR
q?- T--- V-l
l1, lrl/l1lI BI.IUYEL(v)
+
Wire side of female terminals
Rocirculation control door do6snoi chango botw€en Fresh andReci.culate.
Check the No. 17 {7.5 A)tuse in theunder-dash f use/relay box.
Roplace the fu36, and rechock.
Check for .n open in the wire:1. Disconnect the recirculationcontrol motor 4P connector.2. Turn the ignition switch ON (ll).3. Measure the voltage betlveenthe No. l terminal and bodyground.
Repair op6n in the wire bdtweenthe No. 17 fuse and thc recircule-tion control motor.
Check the rocirculation controlmoior:1. Turn the ignition switch OFF.2. Test the recirculation controlmotor (see page 22-42).
Chock ths r.circulation controllinkag. end doori1. Remove the recirculation con-trol motor (see page 22,42).2. Check the recirculation controllinkage and door for smooth
Do the recirculation control linkage and door move smoothly?Boprir the recirculrtion controllinkag. or dooJ,
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Ftom page 22-24
Check tol a short in the wit6:1. Remove the heater controlpanel {see page 22-46)2. Check for continuity betweenthe No.2 and No.3terminals of
the heater controlpanel8P connector and body ground indi-vidually.
Reoaii short in tfte wir€{s) b€irv€€nthe redrc{lstion conttol motor and
ihe hedter control panel.
Check for a shon to power:
Check the same wires lor voltage.
Repair short to power in the wite
between the rocirculation controlmotor and lh€ heator controlpanel. (This demsges the heater
conlrol panel.l
ls there any voltage?
Ch€ck tor an open in the wires:Check for continuity between thefollowing terminals ol the recircu'lation control motor 4P connectorand the heater control panel 8P
8P: 4P:No.2 - No.4No.3- No.2
Ropair open in the wile(sl betweenthe recirculalion control motorand the heeter cortrol Pan€|.
Check for loose wires or pool
connections at the heat€r control
Danel 8P connoctor and .t therocirculation control motor 4Pconnector. lf lhe connec{ions aregood, substitule a known-goodhester control oanel, and rochock.lI the symptom/indication goes
away, .eplace the otiginal heater
control pan€|.
HEATER CONTROL PANEL 8P CONNECTOR
Wire side of female terminals
GRN/REO---1 T'lF Iir l516 I
213
;T;
1ffiIVI4I
GRN/WHT
RECIRCULATION CONTROL MOTOR,lP CONNECTORwire side ot female terminals
22-25
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Troubleshooting
Radiator Fan
MDIATOR FAN RELAY 4P SOCKET
Radiator tan doos not run at sll(but condonser fsn runs with theA/C onl.
Check rhe No. 57 (20 Alfuse in theunderhood fuse/relay box, andthe No. 17 17.5 A) luse in the0nder-dash fuserelay box.
R.pl.c. th. fur€|.l, .nd r.chack.
Remove the radiator fan r6lay,and test it {see page 22-45).
R.pllco tha r.diator frn rehy.
Check the und.r-hood fus./r.l.ybox:Measure the voltage between theNo. 2 terminal ol the .adiator tanrelay 4P socket and body ground.
Chock the radiator tan:Connect the No. 1 and No.2 t€rminals of the radiator fan relay4P socket with a iumper wire.
Does th6 radiator fan run?
fo page 22-28
fo page 22-21
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Ch6ck for an open in the wire:1. Disconnect the jumper wire.
2. Disconnect the radiator fan 2P
3. Check for continuity beNveenthe No. l terminal o{the radia-tor fan relay 4P socket and theNo. 2 terminal of the radia'tor fan 2P connector-
Repai. open in the wira betweenthe radiator fan .olay ,nd the radi'atorfan.
Check lor an open in the wi.e:Check for continuity between theNo. 1 terminal oI the radiator fan2P connector and body ground.
Check lor an open in the wir.
b€turosn the radi.tor fan and bodyground. lf ihe wire b OK, check folpoor ground .t G2()l .
ls there continuity?
Replace the radiator tan motor.
Ftom page 22-26
RADIATOR FAN REI-AY 4P SOCKET
BLK/RED
RADIATOR FAN 2P CONNECTORWire side of lemale terminals
(cont'd)
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Troubleshooting
Radiator Fan (cont'dl
From page 22-26
RADIATOR FAN RELAY 4P SOCKET
BLK/YEL
1
2
a
Chock for an open in the wire:'1. Disconnect the jurnper wire.2. Turn the ignition switch ON (ll).3. lleasure the voltage betweenthe No.4terrninal of the radia-tor fan relay 4P socket andbody ground.
R€pair open in th6 wire botwoonthe No. 17 fuso and the radiatolfan .elsy.
ls there battery voltage?
Rep.ir open in the GRN wirebotw€en lhe radiator tan relayand the PCM/ECM.
22-28
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Condenser Fan
CONDENSER FAN RELAY 4P SOCKET
(cont'd)
Condenser lan does not run at alllbut radiator fan runs with theA/C on).
Check the No. 56 (20 A) fuse in theunder hood fuse/relay box, and theNo. 17 {7.5 A) fuse in the under-dash fuse/relay box.
Replace the luse(s), and .echeck.
Remove the condenser fan relay,and test it (see page 22-45).
Replace the condenser fan r€lay.
Check the under-hood luso/relaybox:Measure the voltage between theNo.2 terminal of the condenserfanrelay 4P socket and body ground.
Check the condensff fan:Connect the No. 1 and No. 2 terminals of the condenser lan rclay4P socket with a jumperwire.
Does the condenser fan run?page 22-30
To page 22 31
22-29
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Troubleshooting
Condenser Fan {cont'd)
CONDENSER FAN RELAY 4P SOCKET
r---------t wHT
lr_f__l12 | |
fT;.] |I/Or\j/
I
G
CONDENSER FAN 2P CONNECTORWire side ol temale torminals
-r+-,.12
TBtK
@
!
Chock for an open in the wire:'1. Disconnect the iumper wire.2. Disconnect the condenser fan2P connector.3. Check for continuity betweenthe No. 1 terminal of the con,denser fan relay 4P socket andthe No. 2 terminal of the con-denser fan 2P connector.
Ropair open in the wire betwoenth€ condenser fan rslay and thecondenser tan.
ls there continuity?
Chech tor an open in the wire:Check for continuity between theNo. I terminal of the condenserfan 2P connector and bodyground.
Check for an open in thg wirebetween the condenser fan andbody ground. lf the wiro is OK.check tor poor ground .t G202.
Replace tho condenser tan motor.
22-30
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