1998 HONDA INTEGRA Compressor

Blower Controls
FUSE 17HE TEn ,'/C nELAY7.5ASee PowetDistribution,page 10-6.
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See Ground Distribution,page 14-4.
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See GroundOistribution,page 14-2.
: G201
60

A/C Gompressor Controls (conrd)
- How the Circuit Works
Battery voltage is supplied through fuse 56 to the
A,/C compressor clutch relay contacts at all times.
With the ignition switch in ON (ll), voltage is applied
to the coil of the A,/C compressor clutch relay
through fuse 17. When you push the A,/C switch
ON, and the heater fan switch is in posation 1, 2, 3,
or 4, a "ground" input is provided to the engine or
powertrain control module (ECM or PCM) through
the A,/C thermostat and the A,/C pressure switch.
The A,/C compressor clutch relay is grounded by the
engine or powertrain control module (ECM or PCM).
When energized, the A,/C compressor clutch relay
allows battery voltage to turn on the A,/C
comDressor clutch,
The A,/C ON indicator light comes on when the A"/C
system is requested.
A,/C Thermostat
The A,/C thermostat is located on the evaoorator
housing. The AJC thermostat turns off the A,/C
compressor clutch if the temperature at the
evaporator goes below 3'C (37'F). This prevents
condensation from freezing on the evaporator fins
and blocking the air delivery into the passenger
compartment. The blower motor will keep running
when the sensor lurns off the compressor.
A,/C Pressure Switch
The A,/C pressure switch is located in the condenser
outlet line where refrigerant is in a high
temperature/high pressure liquid state. The switch
will sense abnormally high or low pressure, and
open the circuit. This removes ground, and the
compressor will stop running.
Refer to the Service Manual (Section 22,
Air Conditioning) for specific tests or
troubleshooting procedures.
62-2

Fans (cont'd)
- How the Gircuit Works
When the ignition switch is in ON (ll), voltage is
applied to the coils of the radiator fan relay and the
condenser fan relay (with A,/C) through fuse 17.
Whenever a ground is provided to the radiator fan
relay and condenser fan relay, the relays are
energized, turning on the radiator fan motor and
condenser fan motor. The relays can be grounded
by the radiator fan switch, engine or powertrain
control module (ECM or PCM) (USA), or the A,/C
and heater lan switches via the A'lC pressure switch
and the A,/C lhermostat.
A,/C Thermostat
The A,/C thermostat is located on the evaporator
housing. The A/C thermostat turns oft the A/C
compressor clutch it the temperature at the
evaporator goes below 3'C (37"F). This prevents
condensalion from freezing on the evaporator fins
and blocking the air delivery into the passenger
compartment. lt the temperature goes below 3'C
(37'F) turning off the A"/C thermostat, and the
BLU/RED wire at the A,/C diode was the only wire
providing ground to the condenser and radiator
fan relays (A,/C switch on, heater fans switch on,
radiator fan switch open, and ECM or PCM fan
controi output not grounded), the relay will
deenergize removing voltage from the condenser
and radiator fan motors causing them to stop
running.
A,/C Pressure Switch
The AJC oressure switch is located in the condenser
outlet line where refrigerant is in a high
temperature/high pressure liquid state. The A,/C
switch turns off the A,/C compressor clutch if it
senses abnormally high or low pressure. lf the A'lC
pressure switch opens, and the BLU/RED wire at
the A/C diode was the only wire providing ground
to the condenser and radiator fan relays (L/C switch
on, heater fans switch on, radiator lan switch open'
and ECM or PCM fan control output not grounded),
the relay will deenergize removing voltage from the
condenser and radiator fan motors causing them to
stop running.
A./C Diode
This diode orevents the radiator fan switch f rom
grounding the "A'lC ON" input to the engine or
powertrain control module (ECM or PCM).
Refer to the Service Manual (Section 23, Electrical)
for specific tests or troubleshooting procedures.
63-3

Connector ldentification and Wire Harness Routing
Connector
OT
Terminal
Number of
Cavities/
Color
LocationConnecls toNotesI
fl-
Starter Cables
T1
T2Right side of engine compartmentRight end of engineUnder-hood fuse/relav boxStarter motor
oBatteryBattery positive terminal
Battery Ground Cable
lRight front shock towerBodyground, via battery ground
ABatteryBattery negative terminal
Engine Ground Cable A
T3Left end of engineValve cover
Top left side ol bulkheadBody ground, via engine ground
Engine Ground Cable B
T4Right side of engine compartmentTransmission housing
Right front side of trameBody ground, via engine ground
wrre b
A,/C Wire Harness
Under-hood ABS Fuse/Relay Box Cable
203
c151
c'154utSc
u tco
8-GRY
2-GRY
2-GRY
1-GRY
Right side ol engine compartmentLeft side of engine compartmentLeft srde of engine compartmentLeft side of engine compartment
Main wire harness
A'lC pressure switch
Condenser tan motorA,/C compressor clutch
lrlclTop right side ot front bulkhead
T5Right side of engine compartmentUnderhood ABS fuse/relav box
\,BatteryBattery positive terminal

Circuit ldentification for In-Line and Fuse Box Connectors
Use this chart to help diagnose multiple symptoms in separate circuits which could be caused
by a single problem in a connector shared by those circuits (see example on page 7).
Connector
(6 or more cavities)
Number of
Cavities-Color
Wire
Harnesses
Engine/
Main
Engine/
Engine
Compartment
I Automatic transmission controls, lgnition system,
i Programmed fuel injection system (PGM-F|)
Automatic transmission controls, Charging system,
lgnition system, Programmed fuel injection system(PGM-FI)
Automatic transmission controls, Back-up lights,
Charging system, Cruise control, Fans, Gauges,
lgnition system, Maintenance reminder system,
Engine oil pressure indicator light, Programmed fuel
injection system (PGM-Fl), Vehicle speed sensor
ffss)
| {c/Main! A,/C compressor controls, Fans
Under-hood
fuse/relay
box/Main
Automatic transmission controls, Blower controls,
Cargo area light, Ceiling light, Clock, Console
lights, Dash lights, lmmobilizer system ('00 model),
Integrated control unit, License plate lights,
Maintenance reminder light, Parking lights, Power
antenna, Power door locks, Power windows,
Programmed fuel iniection system (PGM-Fl), Rear
window defogger, Stereo sound system, Taillights,
Trunk lioht
11-GRY
18-BBN
(4il
except BS)
12-BBN (RS)
Under-hood
fuse/relay
box/Main
Engine
CompartmenV
Main
Engine
CompartmenU
Main
lr,/C compressor controls, Automatic transmission
controls, Blower controls, Brake lights, Ceiling light,
Clock, Fans, Hazard warning lights, Horn, Interlock
system, Maintenance reminder light, Moonroof ,PGM-FI, Power door locks, Power windows, Rear
window defogger, Stereo sound system, Taillights
Anti-lock brake system (ABS), Automatic
transmission controls, Back-up lights, Brake system
indicator light, Charging system, Cruise control,
Daytime running lights (DRL), Fans, Gauges,
lgnition system, Maintenance reminder light,
Engine oil pressure indicator light, Programmed
tuel injection system (PGM-F|), Starting system,
Vehicle speed sensor (VSS)
Anti-lock brake system (ABS), Cruise Conkol,
Daytime running lights (DRL), Hazard warning
lights, Headlights, Front parking lights,
Programmed fuel injection system, (PGM-Fl),
Rear wiper/washer, Turn signal lights,
Wiper/washer
204

)ot
Connector
(6 or more cavities)
Number of
Cavities-Color
25-GRY
1O-GRY
Wire
Harnesses
Front
passenger's
door/Main
Heater sub-
harness A,/
Main
Circuits
Power door locks, Power mirrors, Power windows,
Stereo sound svstem
fuC compressor controls, Air delivery, Dash lights,
Fans
transmission controls, Brake lights, Ceiling light,
Cruise control, Door open indicator, Gauges,
Horns, lgnition system, Interlock system,
Programmed fuel injection system (PGM-Fl)
Main/
Main
Anti-lock brake system (ABS), Automatic
16.GRYMain/RearPower mirrors, Power windows, Programmed tuel
injection system (PGM-Fl)
14-GRYMain/RearBack-up lights, Brake lights, Ceiling light,
lgnition key reminder, Lights-on reminder,
Power door locks, Programmed fuel iniection
system (PGM-Fl), Rear window defogger, Rear
wiDer/washer) -io
tl
c430
(An)
8-GRY
(e8-'ee)
or
1O-GRY
(00)
18-GRN
Dashboard/
Main
Under-dash
fuse/relay
box/Main
A/T gear position indicator, Automatic transmission
controls, lmmobilizer system ('00 model),
Programmed fuel injection system (PGM-Fl)
Anti-lock brake system (ABS), Automatic
transmission controls, Charging system, Daytime
running lights (DBL), Front parking lights, Hazard
warning lights, Headlights, lnterlock system,
Programmed fuel injection system (PGM-Fl), Rear
window defogger, Turn signal lights, Vehicle speed
c43920-GRNUnder-dash
fuse/relay
box/Main
sensor (VSS
L/C compressor controls, Air delivery, Blower
controls, Ceiling light, Cigarette lighter, Console
lights, Cruise control, Dash lights, Daytime running
lights (DRL), Fans, Gauges, Hazard warning lights,
Indicators, lntegrated control unit, Maintenance
reminder light, Power windows, Programmed fuel
injection system (PGM-Fl), Rear window defogger,
Turn signal lights
)
204-1

Connector
(6 or more cavities)
Number of
Cavities-Color
Wire
Harnesses
Under-dash
fuse/relay
box/Rear
A/T gear position indicator, Charging system,
Cigarette lighter, Clock, Console lights, Cruise
control, Dash lights, Gauges, Hazard warning
lights, Indicators, Maintenance reminder light,
Power antenna, Bear window delogger, Stereo
sound system, Turn signal lights
ucco2O-WHTDashboard/
Dashboard
Cigarette lighter, Clock, Console lights, Dash lights,
Gauges, Indicators, Maintenance reminder light,
Rear window defoggerrtl
c67714-GRYHeater sub-
harness A,/
Heater sub-
harness B
fuC compressor controls, Air delivery, Blower
controls, Dash lights, Fans
)
)J
204-3

ng
MEASUREMENTSTANDARD {NEW}
Air conditioningsystemLubricant capacity m/ (fl oz) CondenserEvaporatorLine or hoseReceiver/Drver
Lubricant type: ND-OlL8(P/N 38897 - PR7 - A01AH or 38899 - PR7 - A01)
25 1516l40 (1 1/3)10 (1/3)
10 (1/3)
CompressorLubricant capacity m/ (fl oz)Lubricant type: ND-OlL8Stator coil resistance at 68'F (20"C) OPulley-to-pressure plate clearance
140'trs 142B'y'l
3.4 - 3.80.5 I 0.15 (0.02 1 0.006)
Compressorbelt*rDeflection with 98 N (10 kgf. 22 lbf)between pulleys
7.5 - 9.5 (0.30 - 0.37) with used belt5.0 - 7.0 (0.20 - 0.281 with new belt
Belt tension N (kgf, lbf)Measured with belt tension gauge390 - 540 (40 - 55, 88 - 120) with used belt740 - 880 (75 - 90, 170 - 200) with new belt
*1: When using a new belt, adjust deflection or tension to new values. Run the engine for 5 minutes then turn it off.
Standards and Service Limits
Air Conditionins - Section 22
Readjust deflection or tension to used belt values.
Electrical - Section 23
f1: Do not adjust the gap, replace spark plug if it is out of spec'*2: When using a new belt. adjust deflection or tension to new values. Run the engine for 5 minutes then turn it off.
Readjust deflection or tension to used belt values.
a.
t-
MEASUREMENTSTANDARD (NEW}
lgnition coilRated voltage VPrimary winding resistance at 68"F (20'C) O
Secondary winding resistance at 68'F (20"C) k0
120.6 - 0.812.8 - 19.2
lgnition wireResistance at 68'F (20'C) k0Firinq order
25 max.1-3-4-2
Spark plugI ypeGap B18B1, 818C5 engines818C1 engine
STANDABD {NEWISERVICE LIMIT
See Section 231.0 - 1.1 (0.039 - 0.04311.2 - 1.3 (0.047 - 0.051)i-= roru',t.',1.5 (0.0591* 1
lgnition timingAt idling' BTDC (Red) - rpmM/T
AIT
Except 818C5 engine 16 ! 2 -750 (Neutral)
818C5 engine 16 t 2 - 800 (Neutral)
16!2-750 t1r{ or p position)
Alternator belt*2Deflection with 98 N (10 kgf, 22 lbf)between pulleys9.0 - 1 1.0 (0.35 - 0.43) with used belt6.0 - 8.0 (0.24 - 0.31) with new belt
Belt tension N (kgf, lbflMeasured with belt tension gauge340 - 490 (35 - 50. 77 - 1'l0l with used belt
690 - 880 (70 - 90. 1 54 - 198) with new belt
Alternator(Except B18C5engine)
Output 13.5 V at normal operating temperature A
Coil resistance (rotor) at 68'F (20'C) OSlip ring O.D.Brush lengthBrush spring tension N (kgf, lbf)
STANDARD {NEW}SERVICE LIMIT
902.914.4 (0.571
10.5 (0.41)
3.2 (0.33, 0.73)
,0, to.uur1.5 (0.06)
Alternator(B l8C5 enginelOutput 13.5 V at normal operating temperature A
Coil resistance (rotor) at 68"F (20'Cl O
Slip ring O.D.Brush lengthBrush spring tension N (kgf, lbf)
852.6 - 2.922.7 rc.89119.0 (0.75)
3.3 - 4.1 (0.34 - 0.42, 0.75 - 0.93)
',to.tg14.0 (0.55)
StarterOutputMica depthCommutator runoutCommutator O.D.Brush lengthBrush spring tension (new) N (kgf, lbf)M/TA/T
Mll:1.2 kW, A"rT: 1.4 kW0.5 - 0.8 (0.02 - 0.03)0 - 0.02 (0 - 0.0008)29.9 - 30.0 (.177 - 1.18111s.0 - 15.5 (0.59 - 0.61)12.7 - 20.6 (.3 - 2.1, 2.9 - 4.6)17 .7 - 23.5 11.8 - 2.4, 4.0 - 5.3)
0.2 (0.008)
0.05 (0.002)
29.0 (1.1421
10.0 (0.39)
3-14