air temperature HONDA INTEGRA 1994 4.G Owner's Manual
[x] Cancel search | Manufacturer: HONDA, Model Year: 1994, Model line: INTEGRA, Model: HONDA INTEGRA 1994 4.GPages: 1413, PDF Size: 37.94 MB
Page 1063 of 1413
Heater Control Panel
Overhaul
HEATER FAN SWITCHTest, page 21-30
AIR MIX CONTROL CABLE
Adjustment, page 21-27
Air Mix Control Cable Replacom€ni
1. Remove the ait mix control caDle'
2. Hook the tip of the new air max control cable to the temperature control lever, and push the cable housing until it
is locked.
AIR MIX CO]IITROL CABLE
NoTE:Alterassemb|y,checkthatthetemperaturecontro||eve's|idessmooth|ythroughthe'u||strokefromright
to left.
21-26
Page 1064 of 1413
Heater Valve Gable
Adjustment
Disconnect the heater valve cable from the heatervalve arm and the clamp, and from the heater con-trol arm and the clamp.
Set the temperature control lever to MAX. HEAT.
Turn the heater control arm as shown. and connectthe end of the heater valve cable to the heater con-trol arm.
Gently slide the heater valve cable housing back fromthe end enough to take up any slack in the heatervalve cable, but not enough to make the tempera-ture control lever move. Hold the end of the heatervalve cable housing against the stop, then snap theheater valve cable housing into the clamp.
2.
Air Mix Control Cable
Adjustment
'l . Disconnect the air mix control cable from the air maxcontrol arm and the clamp.
2. Set the temperature control lever to MAX, HEAT.
3, Turn the air mix control arm as shown. and connectthe end of the air mix cont.ol cable to the air mixcontrol arm.
4. Gently slide the air mix control cable housing backtrom the end enough to take up any slack in the airmix controlcable, but not enough to make the tem-pe.ature control lever move, then snap the air mixcontrol cable housing into the clamp.
NOTE: The heater valve cable should always be ad-justed whenever the air mix control cable has beendisconnected.
HEATER COIITBOLARMHEATEB VALVECABLE
AIR MIX CONTROLCABLEAIB MIX CONTROLARM
5. Turn the heate. valve arm as shown, and connectthe end of the heater valve cable to the heater valve
arm.
Gently slide the heater valve cable housing back from
the end enough to take up any slack in the heatervalve cable, but not enough to make the tempera-ture control lever move, then snap the heater valve
cable housing into the clamp,
NOTE: The air mix control cable should always beadjusted whenever the heater valve cable has beendisconnected.
CLAMP
21-27
Page 1074 of 1413
Description
Outline
The air conditioner system delivers cooled air into the passenger compartment by circulating refrigerant through the sys-
tem as shown below.
CONDENSOR
This car uses HFC-134a {R-134a) refrigerant which does not contain chlorofluorocarbons Pay attention to the following
service items:
. Do not mix refrigerants CFC-I2 (R-l21 and HFC-134a (R-134a) They are not compatible'
. Use onty the recommended potyatkytenegtycol {PAG) refrigerant oil (ND-OIL 8: P/N 38899-PR7-A01) designed for the R-
134a compressor. Intermixing the recommended (PAG) refrigerant oil with any other refrigerant oil will result in com-
pressor tailure.
.A||lvcsystemparts(compressor.dischargeIine,suotionIine,evaporator,condenser.receiver/dryer,expansionva|ve.
o-ringsforioints}havetobeproperforre'rigerantR-l34a.DonotconfusewithR.l2parts.
. Use a halogen gas leak detector designed for refrigerant R-134a'
. R-.12 and C-l34a refrigerant servicing equipment are not interchangeable. Only use a Recovery/Recyclins/Charging
System that is U.L.-listed and is certifLd to meet the requirements of sAE J2210 to service R-134a air conditioning sys-
rems.
. Always recover the refrigerant R-134a with an approved Recover/Recycling/Charging System before disconnecting any
A,/C fitting.
coMpRESsoR -coNDENSER - RECEIVER/DRYER
High temperature/
high pressure gas
Suction and comPression
Less moisturized
low pressure vaPor
High temperature/ Traps debris High temperature/
hilh pressure liquid and removes high pressure liquid
Radiation of heat molsture
More liquidified
low Pressure vaPor
Absorption of heat
EVAPORATOR <-'----------.- EXPANSION VALVE
EVAFORATOR
22-6
Page 1091 of 1413
Pressure Test Chart
NOTE: Performance Test on page 22-24.
TEST RESULTSRELATED SYMPTOMSPROAABLE CAUSEREMEDYDischsrge(high) pressureabnormallynrgn
AftEr stopping compressor, pressuredrops to about 200 kPa (2.0 kof/cmr. 28psi) quickly, and then falls gr;dua y.
Air in systemRecover, evacuate and recharqowith sDecified amount. -
Evacuation: see Daqe 22-38Charoino: se6 D;op--2?-?qNo bubbles in sight g16ss when con-denser is cooled bv water.E-\cessive refrigerant in sys-Recover, evacuate and recharqewith specitied amount. -
Reduced or no air flow through con-oenser.Clogged condenser orradiato. finsCondenser o. radiator fannot working properly
CleanCheck voltage and fan rpmunecK lan ofeclton
Line to condenser is excessivelv hot.Restricted flow of refriger-ant In syslem. Restricted lines
Discharge pres-su re abnormal-Excossive bubbles in sight glass;condenser is not hot.Insuff icient refrigerant insyslemCheck for leakCharge systemHigh and low pressures are balancedsoon after stopping compressor. Lowside is higher than normal,
Faulty compressor dis-cnarge vaNsFaulty compressor seal
Replace the compressor.
Outlet of expansion vslve is not frost-ed, low pressure gauge indicates vacu-um,
. Faulty expansion valve. Moisture in sysiem. Replace. Recover, evacuate and recharoewith specified amount. -
Suction (lowlpressureabnormally low
Excessive bubbles in sight glass;conqenser rs not hot_Insuff icient ref rigerantReoair the leaks.Reaover, evacuate and recharoewith sDecifisd amount. -
Charqe as required.Expansion valve is not trosted and lowpressur€ line is not cold. Low pressuregauge Inorcates vacuum.
Frozen expansion valveFaulty expansion valveReplace the expansion valve.
Discharge temperaturg is low and theair flow from vents is restricted.Froren evaporatorRun the tan with comoressor oftthen check Ay'C thermostat.Expansion valve is frost€d.Clogged expansion valveCl€an or replace.Receiver/dryer outlet is cool and inletisrryarm (should be warm during oper-Clogged r€ceiver/dry€rReplace
Suction pres-su re abnormal-ly high
Low pressure hose and check joint arecooler than the temDeraturo aroundevaDorator.
'
ffin"nsion u"lu" oD"n too
. Loose expansion capillary
Repair or replace.
Suction pressure is lowered when con-denser is cooled by water,Excessive refrigerant in sys-remRecover, evacuate and recharqewith sDecifi€d amount. -
High and low pressure are equalizedas soon as the compressor is stopped,and both gauges fluctuate while run-nrng.
Faultv oasketFaulty Figh pressure valveForeign particle stuck inhigh pressure valve
Replace the compressor.
Suction anddischarg€ pres-sufes aonor-mally high
Reduced air flow through condenser.. Clogged condenser orradiator fins. Condenser or radiator fannot working properly.
Clean condenser and radiatorCheck voltage and fan rpmCheck fan direcrion
No bubbles in sight glass when con-cl€nser is cooled bv water.Excessive refrigerant in sys-remRgcover, €vacuate and recharoewith sp€cified amount.Suction snddischarge pres-su r€ abnormal-
Low pressure hose and metal endafeas are cooler than evaDorator.Clogged or kinked tow pre€-sure nos€ pansFepair or replace.
Temperature around expansion valveis too low compared with that aroundrecerver/orver.
Clogged high pressure lineRepair or replace.
Refrig€rantleaksCompressor clutch is dirty.Compressor shaft seal leak-IngReplace the comDressor.
Compressor bolt(s) are dirty.Leaking around bolt(s)Tighten bolt(sl or replace com-pressor.Compressor gasket is wet with oil. IGasket leakingReplace the compressor.
22-23
Page 1092 of 1413
A/G System Service
Performance Test
The performance test will help determine if the air con-
ditioner system is operating within specitications.
Only use 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 system.
CAUTION: Exposure to air conditioner relrig€rant and
lubricant vapor ot mist can irritate eyes, nose and
throat. Avoid breathing the air conditioner rstrigerant
and lubricant vapor or mi3t.
It accidental system discharge occurs, ventilate work
area before resuming service.
R-134a service equipment or vehicle air conditioner sys-
tems should not be pressure tested or leak tested with
comPressed atr.
!@ some mixtures ot air and R'1344 hrv6
been shown to be combustibls at elovatod prsssurel
and can result in firg or explosion causing iniury 01
property damage. Ngvor usg compregsed ail to prossuro
t€st R-134a ssrvice equipment or vohicl€ air conditioner
syst€ms.
Additional health and safety information may be
obtained from the refrigerant and lubricant manufactur-
ers.
1. Connect a R-134a refrigerant Recovery/Recycling/
Charging System to the car, as shown, iollowing
the equipment manufacturer's instructions.
2. Insert a thermometer in the center vent outlet.
Determine the relative humidity and air temperature
by calling the local weather information line,
3. Test conditions:
. Avoid direct sunlight.
. Open hood.
. Open front doors
. Set the temperature control lever to MAX COOL,
the mode control switch on VENT and the recir-
culation control switch on RECIRCULATE.
. Slide the heater fan switch on MAX
. Run the engine at 1,500 rPm
. No driver or passengers in vehicle.
4. After running the air conditioning for 10 minutes
under the above test conditions. read the delivery
temperature from the thermometer in the dash vent
and the high and low system pressure from the A,/C
gauges.
Rocov.rylB.cycling/Ch!lging SFtrm.
PRESSURELOW
22-24
Page 1093 of 1413
To complete the chans:
. Mark the delivery temperaiure along th€ venical line.
o Mark the intake temperature (ambient air temperature) 8long the bottom line.
o Drsw a line strsight up from the air temperature to the humidity.
. Mark I point one line above and one line below the humidity l6vel (10 % above and 10 % below the humidity
l6vsl).
. From each point, drawa horizontal line across the delivery temparaturs.
. The delivery temperature should fall between the two lines,
. Complete the low side pressure test and high side pressur€ test in the same way.
o Any measurements outside the line may indicate the need for further inspection.
kp.lksf/cm' )lpril29q)(301
Ii(t0l
2stx't25)t360l
at%
30%kprlkgflclrfllpril2qx)t20lt2q)l
15{Xt{15112r0t
9BOt10lt1()l
500ts)171!
T'EUVERYPRESSUNE
OEUVERYPRESSURE
86t30)
71l25l
68120,
59t15l
50(101
11ts)
,o0
{4)tsTl
3q,{3tI€I
ax)l2lt28t
100t1ln4lINTAKEPRESSUBE
DEUVERYTEMPEMTURE
77 6 95 104 "F
{25t t30t (35} laltl fc}
T-
INTAKE TEMPERATURE
22-25
Page 1107 of 1413
Electrical
Special Tools
Troubleshooting
Tips and Precautions ................................ 23-3Five-stop Tloubleshooting ..............,...-..-... Z3-sSchematic Symbols ................................_. 23-6wire Color Cod€s ..................................... 23-6Relay and Control Unit Locations
Engine Compartment .........,............ ... --. 23-7Dsshboard and Door ..,,......................... 23-gDashboard and Floor ............................. 23-t OOuaner Panel .....-.....23-12Connector ldentification and WireHarness Routing ........ 23-i 3
Index to Circuits and Systems
Airbag ............... ...-..-... 2g-26sAir Conditioning ....,.. Section 2lAltelnator ......_.............. 23-99Anti-lock Brake Systsm (ABS) Section 19Automatic Transmission Section 14Battery .............. .......... 23-66Chafging System ........... 23-98rCigalstte Lighter .....................-...-......-..-.. Z3-2O4Cfock ................. ..........23-197rcruise Controf .......--..-... 23-242Distributor .................... 23-87Fan Controls ................. 23-1ogFuel and Emissions ... Section 1i*Fuses
Under-dash Fuse/Relay Box ................... 23-48Undor-hood ABS Fuse/Retay Box ............ 23-51Under-hood Fuse/Relay Box,.................. 23-52rGauges
Engine Coolant Temperature {ECT)Gauge ................ ..23-126Fuef cauge ............... 2g-123'Gauge Assembly ....--.23-113Speedometer .....-...,,. 23-114Tachometer .....,.....-.. 23-114Ground Distribution ........ 23-60Heater ,,,........,.... ..... Section 2lrHorn ................. ........... 23-199*fgnition Switch ............. 23-70fgnition Syst6m .......-..-.. 23-A7lgnition Timing .............. 23-89Indicator Lights"A/T Gear Position .............. ................... 23-1 32B1ak6 System ...,..,..-.23-127Engine Oil Pressura .............................. _ 23-1 51Low Fuel ............ ......23-125Malfunction Indicator Lamp {MlL} ...,,. Section I l
tfnteglated Control Unit ...29-144*lnterlock System ...................................... 23-1 3gLights, Exteriol
Back-up Lights ........... 23-179Brake Lights .............. 23-t8ltDaytime Running Lights {Csnada} ........... 23-156Front Palking Lights ............................. 23-1 65Flont Side Marker Lights ....................... 23-165Front Turn Signal Lights ........................ 23-1 65*Hazard Warning Lights .........................- 2g-1A4Headlights ................. 23-t6tLicense Plate Lights .............................. 23-1 69Taillights(Harchback) .......... 23-166
{Sedan) .............. .. 23-167Lights. Inteliol
Cargo Area Light {Hatchback) ...... -.. -.. -... 23-177Ceifing Light ........-..-.23-175
Dash Lights Blightness Controt .............. 23-t70Glove Box Lighr ................................... 23-1 69Spotfighr ............ ....-.23-174Trunk Light (Sedanl ............... .............. - 23.-177*Lighting Sysrem .......-.-... 23-152:Moonroof ,,.,.......,..,,,,,.-.23-211PGM-FI Systom ........ S€crion 11Power Distribution .,.-..--..23-54Power Door Locks .............,,..................... 23-233Power Mirors ..,..,....-...- 23-216Power Relays ...........,..... 23-68Power Windows ............ 29-222*Rear Window Defogger ........,... ..........,..... - 23-20,6Reminder Systems
Key-in Remindel System ....,.............,.... 23-1 50Lights-on Reminder System ................... 23-l 5f*Maintenance Reminder system ..,,.... -.. - -. 23-.1 2gSeat Belt Reminder System ..................- 23-125*Side Markel/Turn Signal/Hazard
Ffasher System .,..,..-.23.-1A4Spark Pfugs .........-...-..... 23-97Starting System ....,,.....-. 23-73*Stereo Sound System ...,.......................,,.. 23-l gg
Supplemental Restraint System {SRS} ......... 23-265Vehicfe Speed Sensor {VSS) .............--..-.... 23-122*Wiper/Washer Systom ...............--.........-..- Zg-254
rRead SRS pi€cautions on Page 23-271 betore workingin these areas.
-+
Page 1122 of 1413
Gonnector ldentification and Wire Harness Routing
Engine Wire Harness {B1881engine)
Connector 01
Terminal
Number of
CavitiesLocationConnects ioNotes
c10'l
c102
c103
c104
c 105
c106
c107
c108
c108
c109
c110
c111
c113
c114
c115
Lt to
c117
c118
c119
c't 20
c121
c122
c123
cl24
c125
c't26
c127
c128
c129
c130
10
14
6
1
1
2
2
8
2
3
t
1
2
2)
2
8
14
2
2
Right side of engine compartment
Right side of engine compartment
Right side of engine compartment
Right side ol engine compartment
Right side of engine compartment
Right side of engine
Right side ol engine
Transmission
Transmission
Middle of engine
lvliddle of engine
Right side ot engine
Right side of engine compartment
ldiddle rear of engine compartment
Middle of engine
Middle ol engine
Middle of engine
Middle of engine
Middle ot engine
Left side of engine
lvliddle of engine
Middle of engine
Middle of engine
Middle ot engine
Middle ol engine
Left side of engine compartment
Left side of engine compartment
Left side of engine compartment
Transmission
Transmission
Transmission
Main wire harness (C221)
Main wire harness {C222}
Main wire harness (C223)
Main wire harness {C220)
Starter solenoid
Engine coolant temperature {ECT)
sensor
Engine coolant temperature (ECT)
gauge sending unit
Back'up light switch
Lock-up control solenoid valve A and B
lgnition coil
Top dead center/Crankshaft
position/Cylinder position
(TDC/CKP/CYP) sensor
Engine coolant temperature (ECT)
switch
Vehicle speed sensor (VSS)
Heated oxygen sensor (HO2S)
MAP sensor
Throttle position (TP) sensor
ldle air control (lAC) valve
Evaporative emission (EVAPI purge
control solenoid valve
Engine oil pressure switch
Alternator
Intake air temperature {lAT} sensor
No. 'l fuel injector
No. 2 tuel injector
No. 3 fuel injector
No. 4 fuel injector
Junction connector
Engine compartment wire harness
(c304)
Engine compartmenl wire harness
(c305)
Shift control solenoid valve A and B
Countershait speed sensor
Mainshaft speed sensor
M/T
NT
NT
NT
T 101
r102
Lelt side oI engine
Right side of engine compartment
Alternator
Under-hood tuse/relay box
G 101Right side of engineEngine ground, via engine wire
harness
23-16
Page 1124 of 1413
Gonnector ldentification and Wire Harness Routing
Engine Wire Harnoss (B18Cl enginol
Connoctor 01
Totminal
umbor ol
Cavitio8LocationConnecla tof{orc!
c 101
cl 02
c103
c104
c105
c106
c107
c108
c109
c110
c111
cl12
c113
c114
c115
c116
c117
c1r8
c119
c120
cl2'l
c122
c123
c124
c125
c't26
c'127
c 131
c132
c133
c134
2
J
4
3
'I
4
2
I
2
't4
1
4
10
14
,l
2
2
8
Right side of engine compartment
Right side of engine compartment
Right side ot engine comPanment
Right side of engine compartmsnt
Right side of engine compartment
Righr side ot engine
Right side of engine
Transmission
Middle ol engine
Middle oJ engine
Right side of engine
Right side ot engine comPartment
Middl€ reat of engine compartment
Middle of engine
Middle of engine
Middle ol engine
Middle o{ engine
Middle of engine
Lelt side ot engine
Middle of engine
Middle of engine
Middle ol engine
Middle ot engine
Middle of engine
Left side of engine companment
Lelt side ot engine compartment
Left side of engine compartment
Right side ot engine
Right sid€ of engine
Middle ot engine
Middle of engine
Main wire harness (C221)
Main wire harness (C222)
Main wire harness (C223)
Main wire harness (C22O)
Starter solenoid
Engine coolant temperature (ECT)
sensor
Engine coolant temperature {ECTI
gauge sending unit
Back-up light switch
lgnition coil
Top dead center/Crankshaft
position/Cylind€r Position(TDC/CKP/CYP) sensor
Engine coolant temperature {ECT)
switch
Vehicle speed sensor (VSS)
Hsated oxygen sensor {HO2S}
MAP sensor
Throttle position {TPl sensor
ldle air control (lAC) valve
Evaporative emission {EVAPI purge
control solenoid valve
Engine oil pressure switch
Alt€rnatot
Intake 8ir temperature (lAT) ssnsor
No. 1 fuel injector
No. 2 fuel iniector
No. 3 fuel injeclor
No. 4 fuel injector
Junction connector
Engine compartment ware harness
{c304)
Engine comPanment wire harness
(c305)
VTEC solenoid valve
VTEC oil pressure switch
Knock sensor (KS)
Intaka air bypass (lAB) control sole-
noid valve
T101
r102
Left side of engine
Right sid6 ot engine compartment
Alternator
Under-hood fuse/relay box
G 101Right side of engineEngine ground, via engine wire
harness
23-18
Page 1218 of 1413
Fan Controls
Fan Motor Test
1. Disconnect the 2-P connector from the fan motor.
2. Test the motot by connecting battery power to the
B terminal, and ground to the A terminal
3. lf the Jan motor fails to run smoothly, replace it.
NOTE: The illustration shows the radiator fan.
Engine Coolant Temperature (ECT)
Switch Test
NOTE: Bleed air from the cooling system atter install-
ing the engine coolant temperature (ECT) switch (see sec-
tion 1O).
1. Remove the ECT switch from the thermostat
housing.
2. Suspend the ECT switch in a container of coolant
as shown.
Heat the coolant and check engine coolanl tempera-
ture with a thermometer.
Check the continuity between the A and B terminals
according to the table:
Terminal
;;,".,"---\
B
Switch
Above 196 2O3"F
{91-95'C)o_-o
Below 181- 189oF
(83-87'C)
23-112