Temperature HONDA CR-V 2000 RD1-RD3 / 1.G Manual PDF

From page 22-20
Chock tor an oDen in th€ wire:Check for continuity betlveen theNo. 2 terminal of the heater con-trol oanel 20P connector and theNo.2 terminal oI the evaporatortemperature sensor 2P connoctor.
Fopair open in the wiro betweentho heato. control penel and theevaporator tempetatule sensor.
Check for rn opsn in tha wiJe:Check for continuity between theNo. 9 terminal of the heater control oanel 20P connector and theNo. 'l terminal ot the evaporatortemperature sensor 2P connector,
Ropair open in tho wire betwegnthe heater control oanel and theevaporator tgmpcrature sen3or.
Chgck fol loose wiros or pool
connectrons at the hoator controloan6l 20P connector and at theeveporator temperatura Sensol2P connector. It the connectionsare good, substitute a known-good he.tel contlol panel, andrech€ck. ll thg symptom/indica-tion 90o3 rwey, roplsce the origi-nal heater control oanel.
HEATER CONTROL PANEL 2OP CONNECTORWire side ol female terminals
EVAPORATOB TEMPERATURE SENSOR2P CONNECTORWire side oI temale terminals
1810
1112131a1516't7181920
GIIN
12,/ l,/689t0
'tl1213lat1516'1718't920
o
+
li-L:t
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Evaporator Temperature
SensorPower Transistor
Test
Dip the sensor in ice water, and measure the resistance
with a digital multimeter. Then pour hot water on the
sensor, and check lor change in resistance.
Compare the resistance reading between the No. | 8nd
No. 2 terminals of the evaporator temperature sensor
with the specifications shown in the following graph;
resistance should be within the specifications.
EVAPOBATOR TEMPERATURE SENSOB
Terminal side ol male terminals
4
RESISTANCEko
t0
50 68 86.F10 20 30'c
22-44
12V 1.2-3.1W
No. 2 ILT GRN/BLK)
No. I IBLU/BLK)
Test
1.Disconnect the 3P connector from the oower tran-
st$or.
Carefully release the lock tab on the No. 2 terminal in
the 3P connector, then remove the terminal and insu-
late it from body ground.
Connect a 1.2 - 3.4 W bulb between the No, 1 and
the No,2 cavity on the 3P connectol
Reconnect the 3P connector to the power transistor.
Turn the ignition switch ON (ll). and check that the
blower motor runs.
a lf the blower motor runs at half soeed the oower
transistor is OK, replace the heater control panel.
. lf ths blower motor does not run at half soeed,
reDlaca the Dower transistor.
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}-Overhaul
1. Remove the filter lid. then pull out the A/C filter
assembly.
Pull out the evaporator temperature sensor from
the evaporator fins.
Remove the self-tapping screws and the clamps
from the housings.
Carefully separate the housings, then remove the
evaporator.
lf necessary, remove the expansion valve When
loosening the nuts of the expansion valve, use a sec-
ond wrench to hold the expansion valve or the evapo-
rator line. Otherwise, they can be damaged.
6. Reassemble the evaporator in the reverse order of
disassembly. Make note of these items.
. Replace the O-rings with new ones at each fitting,
and apply a thin coat of refrigerant oil before
installing them. Be sure to use the right O-rings
for HFC-'134a (R-134a) to avoid leakage.
. Install the expansion valve capillary tube with
the capillary tube in contact with the outlet line
directly, and wrap it with electricaltape.
. Reinstall the evaporator temperature sensor to
its original location.
. Make sure that there is no air leakage.
ELECTRICAL TAPEReplace.Make sure there is no foreign matter stuck between
the capillary tube and outlet line.
CAPILLARY TUAE
EXPANSION VALVE
4.
TEMPERATURESENSORlest, page 22-41
,m
\!{
YFILTER LID
;
I-OWER HOUSINGA/C FILTER ASSEMBLY
22-49
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Temperature Control
Adjustment
l. From under the hood, open the cable clamp, then
disconnect the heater valve cable from the heater
vatve arm.
From under the dash, disconnect the heater valve
cable housing from the cable clamp. and disconnect
the heater valve cable from the air mix contlol arm
Set the temperature control dial on MAX COOL with
the ignition switch ON (ll).
Attach the heater valve cable to the air mix control
arm as shown above. Hold the end of the heater
valve cable housing against the stop, then snap the
heater valve cable housing into the cable clamp.
HEATER VALVE ARM
HEATER VALVE CABLE
5. From under the hood. turn the heater valve arm to
the fullv closed position as shown, and hold it.
Attach the heater valve cable to the heater valve
arm, and gently pull on the heater valve cable hous-
ing to take up any slack, then install the heate. valve
cable housing into the cable clamp.
HEATER VALVE ARM
HEATER VALVE CABLE
22-53
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A/G System Service
Performance Test
The performance test will helD determine if the air con-
ditioner system is operating within specifications.
Use only service equipment that is U.L.-listed and is cer-
tified to meet the requirements of SAE J2210 to remove
HFC-134a (R-134a) from the air conditioner svstem.
CAUTION: Exposure to air condiiioner r€trigerant and
lubricant vapor or mist can irritate €yes, nose and
throat. Avoid bre8thing the air conditioner retrige.ant
and lubricant vapor or mist,
lf accidental system discharge occurs. ventilate work
area before resuming service.
R-134a service equipment o. vehicle air conditioner sys-
tems should not be pressure tested or leak tested with
comDressed air.
@ some mixtur€s ol air and R-134a have becn
shown to be combuslible at olsvated pressures and can
result in lire or explosion causing iniury or property
damage. Never use compressed air to prgssure test R-
13i[a service equipment or vehicle air conditioner sys.
tems.
Additional health and safety information may be obtained
from the refrigerant and lubricant manufacturers.
Recovory/Recycling/charging station
LOW.PRESSURESIDE
1.Connect a R-134a refrigerant recover/recycling/
charging station to the vehicle, as shown. following
the equipment manufacturer's instructions,
Insen a thermometer in the center air vent. Determine
the relative humidity and air temperature.
Test conditions:
. Avoid direct sunlight.
o Open hood.
. open front doors.
. Set the temperature control dial on MAX COOL,
the mode control dial on VENT and the reci.cula-
tion control switch on RECIRCULATE.
. Turn the A,/C switch on and the fan switch on
MAX.
. Run the engine at 1,500 rpm.
. No driver or passengers in vehicle
After running the air conditioning for 10 minutes
under the above test conditions, read the deliverv
temperature from the thermometer in the dash vent
and the high and low system pressure from the Ay'Cgauges.
2.
22-56
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5. To comDlete the charts:
. Markthe delivery temperature along the vertical line'
. Markthe intake temperature {ambient air temperature) along the bottom line'
. Draw a line straight up from the air temperature to the humidity'
. Mark a point 10% above and 10% below the humidity level'
a From each point, draw a horizontal line across the delivery temperature'
. The deliverv temperature should fall between the two lines'
. Complete the low-side pressure test and high-side pressure test in the same way'
. Anv measurements outside the line may indicate the need for further inspection
kPa{kst/cm')Ipsil
29r,0t30tl,a0l
2500(251
t3601
2000 ll20l I kp.t28ol | {ksf/cmz} "F
I lcsil Pcl1s00'l ,l0o I 85 -l
{15} | (4} | (301
r21or I t57l I I
ttl980 j 3oo -.J "r1 Irlol {31 I l25l Ir14ol r13l I ILI200 -l 68 Jt2) | (2ot Ir28r I II100 -.1 ss l
TNTAKE lli' I
(15r
IPRESSURE ] |50 -l
,to,
IDELIVERY ITEMPEBATURE .t :.] _rsl -ll
80v.
HUMIDITYLEVEI-
HUMIOITYLEVEL
HUMIDITYLEVEL
80vo
DELIVERYPRESSURE
fl6g j7 * 95 104
t2o) l25l (30) (351 (ro)fct
INTAKE TEMPERATURE
22-57
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A/C System Service
Pressure Test Chart
NOTE: Performance Test is on page 22-56.
Test resultsRelatad symptomsPrcbable caus€Remody
Discharge (high)pressure 6bnormallyhagh
After stopping compressor, pressuredrops to about 200 kPa 12.0 kgtlcm,,28 psi) quickly, and then lalls gradualty.
Air in systemDischarge, evacuate, and rechargewith specified amount.Evacuation: see page 22-60Charging: see page 22-61No bubbles in sight glass whencondenser is cooled by waterExcessive refrigerant in systemDischarge, evacuate, and rechargewith specilied amount.Reduced or no air flow throughcondenser. Clogged condenser or radia-tor fins. Condenser or radiator fannot wo.king properly
CleanCheck voltage and fan rpm.Check fan direction.
Line to condensor is excossivelv hot.Restricted flow of relrigerant insy$emFestricted lines
Discharge pressureabnormally lowExcessive bubbles in sight glass;condenser is not hot.Insufficient retrigerant inCheck for leak.Charge system.High and low pressures are balancedsoon after stopping compressor. Lowside is higher than normal.
. Faulty compressor discharge
. Faulty compressor seal
Replace the comprossor.
Outlet ot expansion valve is notfrosted, low-pressure gauge indicates
' Faulty expansion valve. Moisture in system. Replace. Discharge, evacuate, andrecharge with specified amount.Suction {low) pros,sure abnormallyExcessive bubbles in sight glass;condenser is not hot.Insufficiont relrigerant inRepair the leaks.Discharge, evacuate, andrecharge with specified amount.Charge as r€quired.Expansion valve is not frosted, andlow-pressure line is not cold. Low-pressure gauge indicates vacuum.
' Frozen expansion valvelMoisture in system). Faulty expansion valve
. Discharge, evacuate, andrecharge with specitied amount.. Replace th€ expansion valve.Discharge temperature is low, and theair llow trom vents is restricted.Frozen evaporatorRun the fan with compressor off,then check evaporator tempera,ture sensor.Expansion valve is frosted.Clogged expansion valveClean or replace.Feceiver/dryer outlet is cool, and inlotrs w6rm (should be warm duringoperation).
Clogged receiver/dryerReplace
Suction pressureabnormally highLow-pressure hose and check joint arecooler than tho temperature aroundevaporator.
. Expansion valve open too long. Loose expansion capillarytube
Repair or roplace.
Suction pressure is lowored whencondenser is cooled by water.Excessive refrigerant in systemDischarge, evacuate, and rechargewath specified amount.High and low-pressure are equalizedas soon as tho compressor is stopped,and both gauges tluctuate whilerunning.
Faulty gasketFaulty high-pressure valveForeign panicle stuck in high-
Replace the compressor.
Slction and dis,charge pressutesabnormally high
Reduced air flow through condens€r,. Clogged condenser orradiator tins. Condenser or radiator fannot working properly
CleanCheck voltage and fan rpm.Check Ian direction.
No bubbles in sight glass whencondenser is cooled by walerExcessive refrigerant jn systemDischarge, evacuate, and rechargewith specified amount.Suction and dis-charge pressureabnormally low
Low-pressure hose and motalendareas are cooterlhan evaporator.Clogged or kinked low-pressure hose pansRepair or replace.
Temperature around expansion valvers too low compared with that aroundClogged high-pressure lineRepair or replace.
Refrigerant leaksCompressor clutch is diny.Compressor shaft seal leakingReplace the compressor.Compressor boltls) are dirty.Leaking around bolt(s)Tighton bolt{s) or replacecompressor.Compressor gasket is wet with oil.Gasket leakingReplace the compressor,
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Connector ldentification and Wire Harness Routing
Engino Wire Harness
Connecto; or
Terminal
Number of
CavitiesLocationConneqts toNotos
c101
c102
c103
c 104
c105
c105
c106
c 107
c 108
c 109
c]10
c1l'l
c112
c113
c't 14
cl16
cl16
c117
c118
c119
c120
c121
c't22
c't23
c't25
cl26
cl27
cr 28
cl29
c130
c131
c132
c 133
c134
c134
c135
c 136
10
6
1
2
1
2
1
10
20
31
16
22
l0
l0'14
14
1
Left side of engine compartment
Left side of engine compartment
Middle of engine
Middle of engine
Left side of engine compartment
Left side of engine compartment
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Right side of engine
Middle of engine
Behind right kick panel
Under right side of dash
Under right side of dash
Under right side of dash
Under right side of dash
Under right side of dash
Right side of engine
Right side of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Middle of engine
Left side of engine compartment
Middle of engine
Middle of engine
Main wire harness (C304)
Main wire harness (C305):'97 - 98 models
No. 1 fuel injector
Crankshaft speed fluctuation (CKF) sensor
Alternator
Alternator
Engine oil pressure switch
No.2 fuel injector
Evaporative emission (EVAP) purge
control solenoid valve
No. 3 fuel injector
No. 4 fuel injector
Primary heated oxygen sensor(Primary HO2S) (sensor 1)
Radiator fan switch
Coolant temperature sending unit
Engine coolant temperature (ECT) sensor
Mainshaft speed sensor
Lock-up control solenoid valve
Back-up light switch
Shift control solenoid valve
Linear solenoid valve
Countershaft speed sesnsor
Starter solenoid
Distributor
Junction connector
PCM
ECIWPCM
ECM/PCM
ECM/PCM
Main wire harness (C,|:}1)
IVT gear position switch
Vehicle speed sensor (VSS)
Throttle position (TP) sensor
MAP sensor
ldle air control (lAC)valve
lntake air temperature (lAT) sensor
Junction connector
Junction connector
Power steering pressure (PSP) switch
Junction connector
Knock sensor (KS)
A/r
USA
Canada
Alr
AlT
M/'r
Afi
'97mooel
'97 model'98 - 00
mooets
'99 - 00
models
T101
r102
Left side of en0ine companment
Right side of engine compartment
Alternator
Under-hood fuse/relay box
G101Middle of engineEngine ground, via engine wire harness
23-14
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Connector ldentification and Wire Harness Routing
Hoat6r Sub-harness
Connector or
Tgrminal
Numbsr ot
CavitiesLocalionConnects toNotes
c73']
c731
c732
c733
c734
c735
c736
c737
c738
c739
c7 40
c7 40
5
7
7
24
1
Under middle of dash
Under middle of dash
Behind middle of dash
Behind middle of dash
Behind glove box
Behind glove box
Behind glove box
Behind glove box
Behind glove box
Behind glove box
Behind middle of dash
Behind middle of dash
Main wire harness {C436)
Main wire harness (C436)
Mode control motor
Dashboard wire harness (C522)
Air mix control motor
Evaporator temperature sensor
Blower motor high relay
Blower motor
Power transistor
Recirculation control motor
Dashboard wire harness (C523)
Dashboard wire harness (C523)
'97 model'98 - 00
modsls
'97 model'98 - 00
mooels
Combination Switch Sub-harness
Conneqtor ol
Terminal
Number of
CavitiesLocationConnests toNotos
c751
c753
c754
c755
c756
c757
c758
c760
c760
6
7
12
10
2
7
6
8
5
Above under-dash fuse/relay box
Above under-dash fuse/relay box
Under left side of dash
Under left side of dash
Behind steering column
Behind steering column
Behind steering column
Behind steering column
Behind steering column
Behind steering column
Under left side of dash
Under left side of dash
Under-dash fuse/relay box (C914)
Under-dash fuse/relay box {C915)
Main wire harness (C413)
Main wire harness (C413)
Shift lock solenoid
Parking pin switch
Combination light switch
Combination light switch
Wiper/washer switch
Wiper/washer switch
Main wire harness (C442)
Main wire harness (C442)
'97 - 98
mod6ls'99 - 00
models
'97 - 98
models'99 - 00
models
23-36
,
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Battery
Test
@M. Battery fluid (eleqtrolyte) contains sulturic acid. lt may couse sevore burns if it gets on your skin or in your eyes. Wearprotective clothing and a fac6 shield.- lf elestrolyte gets on your skin o. clothos, rinse it otf with wator imm€diately.- lf €leqtrolyte gets in your eyes. tlush it out by splashing water in your syes for at least 15 minutes; call a physicianimmediately.
. A battery gives off hydrogon gas. lf ignited, the hydrogen will €xplode and could crack the battery case and splatt€racid on you. Kgop sparks. flamss, and cigarettes away from the batt€ry,. Overcharging will raise the tomperatute of the electrolyte. This may torcs electrolyto to spray out of the battEry vents,Follow the charger manutacturer's instructions, and charge the battery at a proper ral€,
Use either a JCI or Bear ARBST tester, and follow the manufacturer's procedures. lf you don't have one of tnese comput-erized testers, follow this conventional test procedure:
To get accurate results, the temperature ofthe electrolyte must be between 70.F (21.c) and loo"F (38"c).
23-50
lf the case is cracked or the terminals are roose.
replace the batterv.
Check Indicator EYE Color
lf the indicator shows low electrolyte, add distilled
water if possible.
EYE Indicates OK
Test Load Capacity (#1)
. Apply 300 amp load for 15 seconds to remove surfacecharge.. Allow 15 seconds recovery period.. Apply test load (see Test Load Chart).. Record voltage at the end of 15 seconos.
Voltage stays above 9.6
volts; battery is OK.
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