lock HONDA INTEGRA 1998 4.G Workshop Manual

Automatic Transmission Controls
- '00 Model
47n
24
FUSE 4AACX UE(8ADrO)
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See PowerDistribution,pag€ 1G9.
FUSE 52HOBfl, SIOP204
UNDER-HOODFUSE/BELAYBOX
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WHT/AIU
aa+See PowerDistfibution,page 10"8.
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$See ABS,Brake Lights,Cruise Control
. B2t 432r--rsrbFswlIBattery back-up Btake switch input i
Shift lock Shilt conkol solenoid Lock-up control solenoid Linear solenoid \Vehicte JirCuif ly'C on valve control valve control valve eontrol Isoeed inDut control inDut !speed input control inputlvss) {rLUl tacoLl {SH B, rSH A' {LC A) (LC B) {L.s+J (LS ) Ic23 A2A At7 02 D7 Dl D3 817 8a -'c23 A28 A17 02 D7 D1 D3 817 88
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39-4

Anti-Lock Brake System (ABS)
iTffi;---IH5BE"
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UNOER.DASHFUSE/RELAYBOX
FUSE 16
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LEFTFRONTWHEELSENSOR
RIGHTFBONTWHEELSENSOR
LEFTREARWHEELSENSORPHOTA 46
RIGHTREARWHEELSENSOR
44

Anti-Lock Brake System (ABS) (cont'd)
r----'t
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I relayconkol IL-:-:-J21 Y C7O4YEL/GRN II
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ABSCONTROLUNIT
UNDER"HOODABSFUSE/RELAYBOX
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L6ftFrontABSSolenoid(out)
RightFrontABSSolenoid(ouU
LeftFrontABSSolenoid(ln)
LefiSearABSSolenoid(out)
FL.OUI (FL,|N) (Fn-OUI {FntN) (BL-OUT) lBL,tN) ,-it- --8, r-q-d ,
Left tront ABS Riohl lront ABS t 6ft rerr ABs t-Left tront ABS Right front ABS Left rear ABSsolenoid control solenoid control solenoid conlrol \
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44-2

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

Gauges (cont'd)
- How the Circuit Works
When the ignition switch is in ON (ll) or START (lll),
battery voltage is supplied through fuse 25 to the
gauges in the gauge assembly.
Speedometer and Odometer
The odometer and speedometer drive circuits
receive pulses lrom the vehicle speed sensor
(VSS). The pulse rate increases as the car
accelerates. The frequency and duration of these
input pulses are measured and displayed by the
speedometer, odometer and tripmeter.
Tachometer ('98-'99 Models)
The tachometer drive circuit receives oulses from
the ignition control module (lCM) in the distributor
assembly. The solid-state tachometer then displays
these pulses as engine speed. For each 200 pulses
per minute from the ignition control module (lCM),
the tachometer displays 100 RPM.
Tachometer ('00 Model)
The tachometer drive circuit receives pulses f rom
the PCM or ECM. The solid-state tachometer then
displays these pulses as engine speed. For each
200 oulses oer minute trom the PCM or ECM the
tachometer displays 1 00 RPM.
Engine Coolant Temperature Gauge and Fuel
Gauge
The engine coolant temperature gauge has two
intersecting coils wound around a permanent
magnet rotor. Voltage applied to the coils, through
fuse 25, generates a magnetic field. The magnetic
field, controlled by the engine coolant temperature
gauge sending unit, causes the rotor to rotate and
the gauge needle to move. As the resistance in the
sending unit varies, current through the gauge coils
changes. The gauge needle moves toward the coil
with the strongest magnetic tield. The fuel gauge
works the same way.
The engine coolant temperature gauge sending
unit's resistance varies from about 137 ohms at low
engine temperature to between 30-46 ohms at high
temperature (radiator fan running).
The fuel gauge sending unit's resistance varies from
about 2-5 ohms at full, to about 110 ohms at empty.
When you turn the ignition switch to LOCK (0), the
gauge remains at the last reading until you turn lhe
ignition switch to ON (ll) or START (lll) again.
Refer to the Service Manual (Section 23, Electrical)
for specific tests or troubleshooting procedures.
81'2

A/T Gear Position Indicator
UNDER.DASHFUSE/RELAYBOXPHOTA 58
POWERTRAIN TRANSMISSION
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Ses PowatDislribution,page 10-5.
See Dashand ConsoleLights
'00 l4odel
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'98'99 [4odels
c430
c558
410S€e Gaug€s,lndicators
See Dashand ConsolaLights
GAUGEASSEMBLY
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Sgs GroundDistributon,pages 'l4{
and 1+5.
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See PowerDiBaibution.
89

Power Door Locks
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Unlock Lockrnput inputUnlock Lockinput inputUnlock Lockirput input
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130
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POWEBDOOR LOCKCONTROL UNITPHO|O 82
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SECURITY SYSTEMcoNNECTOR (OPTION)
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130-1

Power Door Locks (cont'd)
- Sedan
10
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BLU/AED
14
LT BT]U
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2
BLKBEOFRONTPASSEN.GER'SoooRKEYCYLINDERSWITCH
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FRONTPASSEN-GER'SDOORLOCKSwlTCH
DRIVER'SDOORLOCKswtTcH
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130-2