1998 ACURA INTEGRA air condition

Maintenance Reminder Unit Input Test
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1.With the ignjtion switch OFF, disconnect the 5P con-
nector from the reminder unit.
Inspect the connector and socket terminals to be
sure they are all making good contact.
a lf the terminals are bent, loose or corroded, repair
them as necessary, and recheck the system.
a lf the terminals look OK, make the following in-
put tests at the connector.- lf a test indicates a problem, find and correct
the cause, then recheck the system.
lf all the input tests prove OK, the remind€r unit
must be faulty; replace it.
2.View from wire side
MAINTENANCEREMINDER UNIT
No.WileTest conditionTest: Dosired resultPossible cause it lesult is not obtained
ORN
IBLKUnder all conditionsCheck for continuity to ground:
There should be continuity.
. Poor ground (G201, G4011. An open in the wire
2WHT/BLU
Under all conditionsCheck for voltage to ground:
There should be battery voltage
. Blown No. 47 (7.5 A) fuse in the under-
hood fuse/relay box. An open in the wire
3YEL
lgnitionONflr)Check lor voltage to ground:
There should be battery voltage.
. Blown No.25 {7.5 A) fuse in the under-
dash fuse/relay box. An open in the wire
4PNK
lgnition ON {ll)Connect to body ground: The
reminder light should go on.
Blown No.25 (7.5 Alfuse in the under-
dash fuse/relay box
Blown bulb
An open in the wire
5ORN
lgnition ON (ll), car in
neutral with front of
car raised, one wheel
rotated with other
wheel blocked
Check for voltage to ground:
Meter should indicate pulsang
voltage.
. Faulty vehicle speed sensor (VSS)
. An open in the wire
t
23-139

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Control Unit Input Test
1. Disconnect the 8P connector from the interlock con-
trol unit.
2. lnspect the connector and socket terminals to be
sure they are all making good contact.
a It the terminals are bent, loose or corroded, repair
them as necessary, and recheck the system.
a lf the terminals look OK, make the following in-
put tests at the connector.- lf a test indicates a problem, tind and correct
the cause, then recheck the system.- lf all the input tests prove OK, substitute a
known-good control unit, and recheck the sys-
tem. lf the check is OK, the control unit must
be faulty; replace it.
NOTE: lf the shift lock solenoid clicks when the igni-
tion switch is turned ON (ll) and you step on the
brske Dedal (with the shift lever in E). the shift lock
system is electronically normal; if the shift lever
cannot be shifted from fl, test the 46 gear position
switch as described on page 23-142, and see sec-
tion 14.
Shift Lock System:
No. Wire Test condition
No. WireTest condition
Test: Desired resultPossible causs it result is not obtained
Test: Dcsired lesultPossible cause it result is not obtainsd
INTERLOCK CONTROL UNIT
GRN/wHT2
1WHT/RED
lgnition switch ON (ll)
Brake pedal pushed
Check for voltage to ground:
There should be battery voltage
Blown No. 52 {20 A) fuse in the
under-hood fuse/relaY box
Faulty transmission control module
(TCM)
Faulty ECM
Faulty brake switch
Faulty throttle position (TP) sensor
An open in the wire
lgnition switch ON (ll)
Brake pedal and
accelerator pushed at
the same me
Check for voltage to ground:
There should be less than
battery voltage.
tGRN/WHT'
Shift lever in position
E
Check tor continuity to ground:
There should be continuity.
Faulty A/T gear position switch
Poor ground {G20'1 , G401)
An open in the wire
3YEL/BLK
lgnition switch ON (ll)Check for voltage to ground:
There should be battery voltage
Blown No. 25 (7.5 A) fuse in the
under-dash fuse/relay box
Faulty shift lock solenoid
An open in the wire
Key Int€rlock Systcm:
BLKUnder all conditionsCheck lor continuity to ground:
There should be continuitY.
. Poor ground (G201, G401). An open in the wire
GRNiWHT'
Shift lever in position
E
Check for continuity to ground:
There should be continuity.
Faulty A/T gear position switch
Poor ground {G2O1, G401 }
An open in the wire
3
WHT/YELlgnition switch turned
to ACC (l) and the key
pushed in
Check tor voltage to ground:
There should be battery voltage.
Blown No. 52 (20 A) fuse in the
under-hood fuse/relaY box
Faulty steering lock assemblY
(key interlock solenoidl
An open in the wireWHT/BLU
4WHT/BLK
Shift lever in position
E and push button
pressed
Check for continuity to ground:
There should be continuity.
Faulty pafking pin switch
Poor ground (G2O1, G4O 1)
An open in the wire
Shift lever in position
E and push button
reteaseo
Check for continuity to ground:
There should be no continuity.
Faulty parking pin switch
Short to ground
An open in the wire
I'
23-149

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'1.
3.
NOTE: Be careful not to damage the controller and the
instrument panel.
Remove the instrument panel from the dashboard
(see page 23-126).
Remove the dash lights brightness controller from
the dashboard, then disconnect the 3P connector.
Inspect the connector and socket terminals to be
sure they are all making good contact.
a lf the terminals are bent, loose or cortoded, repair
them as necessary, and recheck the system.
a It the terminals look OK, make the following in-
put tests at the connector.- lf any test indicates a problem, find and cor
rect the cause, then recheck the system.
It all the input tests prove OK, the dash lights
brightness controller must be faulty; replace it.
3P CONNECTOR
View lrom wire side
Possible cause if result is not obtainedNo.WireTest condition
CONTROLLEB
Test: Desired resull
BLK
REO
BLKUnder all conditionsCheck for continuity to ground:
There should be continuity.
. Poor ground (G201 , G4O1l. An open in the wire
2REDi BLK
Headlight switch ONCheck for voltage to ground:
There should be battery voltage
Blown No.30 (7.5 A) fuse in the
under-dash fuse/relay box
Faulty combination light switch
An open in the wire
3REDHeadlight switch ONConnect to ground: Dash lights
should come on full bright.
. An open in the ware
l-
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23-179

Side Marker/Turn Signal/Hazard Flasher System
Turn Signal/Hazatd Relay Input Test
\
t
SRS components are located in this area. Review the
SRS component locations, precautions, and procedures
in the SRS section (23) before performing repairs or ser-
1.Remove the turn signal/hazard relay from the under-
dash fuse/relay box.
Inspect the relay and socket terminals to be sure they
are all making good contact.
a lf the terminals are bent, loose or corroded, repair
them as necessary, and recheck the system.
a lf the terminals look OK, make the tollowing in
put tests at the socket.
lf a test indicates a problem, find and correct
the cause, then recheck the system.- lf all the input tests prove OK, the turn sig-
nallhazad relay must be faulty; replace jt.
2.
UiTDER.DASH FUSE/RELAYaox
TURN SIGNAL/HAZAND RELAY
No. Telminal Test conditionTest: Deaired resultPossible cause it result is not obtained
lgnition switch ON (ll)
and turn signal switch
in right or left; connect
the B terminal to the L
rermtnat,
Check for continuity to ground:
There should be continuity.
. Poor ground (G201, G401). An open in the wire
lgnition switch ON (ll)
and hazard warning
switch OFF
Check for voltage to ground:
There should be battery voltage
. Blown No. 20 ( 10 A) fuse in the
under-dash fuse/relay box. Faulty hazard warning switch. An open in the wire
lgnition switch OFF and
hazard warning switch
ON
Check lor voltage to ground:
There should be battery voltage.
. Blown No. 43 ('1 0 A) f use in the
under-hood fuse/relay box. Faulty hazard warning switch. An open in the wire
Hazard warning switch
is ON; connect the B
terminal to the L
rermtnat.
Hazard lights should come on.. Poor ground (G201, G301, G401,
cs03). Faulty hazard warning switch. An open in the wire
Right or left turn signal lights
should come on.
. Faulty turn signal switch. An open in the wire

Power
Master
Windows
Switch Input Test (Hatchbackl
NOTE: The control unit is built into the power window
master switch, and only controls driver's door window
ooerations.POWER WINDOWMASTER SWITCH
1.Remove the driver's door panel, and disconnect the
10P connectorfrom the master switcn.
Inspect the connector and socket terminals to be
sure they are all making good contact.
a lI the terminals are bent, loose or corroded, reDair
them as necessary, and recheck the system.
a lf the terminals look OK, make the following in-
put tests at the connector terminals.- It a test indicates a problem, find and correct
the cause, then recheck the system.- lf all the input tests prove OK, the power win-
dow master switch must be taulty; reDlace it.
No.WileTest condition
BLK/WHT
BLK' BLKI
RED/YELRED/BLUBLU/GRNBLU/BLK
View from wire side
Tgst: DesiredresultPossibls cause if result is not obtainsd
BLU
and
BLK/WHT
Check for continuity to ground:
There should be continuity.
Poor ground (G502)
An open in the wire
lgnition switch ON (ll)Check for voltage to ground:
There should be battery voltage
. Blown No. 24 (7.5 A) fuse in the
under-dash fuse/relay box' Blown No. 10, or No. '11 (20 A) fuse
in the under-dash fuse/relay box. Faulty power window relay. An open in the wire
Connect the WHT/YEL
and RED/YELI terminals,
and the RED/BLU1 and
BLK3 terminals with jum-
per wires, then turn the
ignition switch ON (ll).
Check the driver's window
motor:
It should run (the window
moves oownl.
. Faulty driver's window motor. An open in the wire
Connect the BLU/BLK
and BLU/GRN terminals,
and the BLU/YEL and
BLK2 terminals wjth jum-
per wires, then turn the
ignition switch ON (ll).
Check the passenger's window
motor:
It should run (the window
moves oownl.
. Faulty passenger's window motor. An open jn the wire
Connect the WHT/YEL
and RED/YEL1 terminals.
and the RED/BLUI and
BLK3 terminals with jum-
per wires, then turn the
ignition swirch ON (ll).
Connect an analog ohmmeter to
the BLU and BLK/WHT ter-
minals:
The meter needle should move
back and forth alternately as
the driver's window motor runs.
. Faulty pulser. Faulty driver's window motor. An open in the wire
23-236

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Contents
How to Use This l\.4anual 1Circuit Schematics (see Circuit Index)Fuse/Relaylnformation 6ComponentLocation Photographs 201
Connector Cavity Numbers 202Connectorldentification 203
Ground-to-Components Index 6-6Wire Harness Routing 203Circuit ldentification lor ln-Line and Fuse Box Connectors
Circuit Index
Air conditionerAir delivery 61Blower controls 60Compressor controls 62Fans 63Anti-lock brake system (ABS) 44A/T gear position indicator 89Automatic transmission controls'98199 models 39'00 models 39-4Back-up lightsHatchback 110Sedan 110- 1Brake system indicator light
USA 71Canada 71-1Brake lightsHatchback 110-6Sedan 110-7Cargo area light (Hatchback) 114-3Ceiling light 114-2Charging system 22Cigarette lighter 155
Clock 154Condenser fan 63Console lights 114Cruise control 34Dash lights 1 14Daytime running lights 110-8Door open indicator 114-2Engine coolant temperature gauge 81Engine oil pressure indicator light 72Fog lights 110-14Front parking lights 110-11Front side marker lights 110-11Fuel gauge 81Fuse/relay boxUnder-dash 6Under-hood 6-3Under-hood ABS 6-5Gauges 81Glove box light 114Ground distribution 14Ground-to-Componentsindex 6-6Hatch open indicator '114-3
Hatch opener '134
Hazard warning lightsHatchback 'l l0-2Sedan 110-4Headlights 1'10-8Headlight switch 100HeaterAir delivery 61Blower controls 60Fanswith A,/C 63without A,/C 63-2Horns 40lgnilion key reminder 73lgnition system 20
204
lmmobilizer system ('00 model) 132lndicators 80Integrated control unit 70Interlock system'98199 models 138'00 models 138-1License plate lightsHatchback 110-12Sedan 110-13Lights-on reminder 73Low fuel indicator light 74l\,4aintenance reminder light 83l\iloonroof 122Odometer 81-1Power antenna 151Power distributionBattery to ignilion switch, fuses, and relays
Fuses to relays and components 10-2Power door locksHatchback '130
Sedan 130-2Power mirrorsHatchback 141Sedan 141-1Power windowsHatchback 120Sedan 120-2Programmed fuel injection system (PGM-Fl)'98199 models 23'00 models 24Radiator fanwith tuC 63without A,/C 63-2Rear parking lightsHatchback 110-12Sedan 110- 13Rear window defogger 64Seat belt reminder 73Security system 133Speedometer Il-1Spotlights 114-2Starting syslemAutomalictransmission 21l\.4anualtransmission 21-1Stereo sound system 150Supplemental restraint system (SRS) 47Tachometer 81- 1TaillightsHatchback 110-12Sedan 110-13Trailer lighting conneclor 118Trunk lid open indicator 114-3Trunk light (Sedan) 114-3Turn signal lightsHatchback 110-2Sedan 110-4Vehicle speed sensor (VSS) 33Wiper/washerFront 91Rear 92
10
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12Fg oAmerican Honda Motor Co., Inc. - All Rights Reserved Service Communications 275 pages

Air Deliver| (cont'd)
- How the Circuit Works
The air delivery system directs the flow of air used
by the heater and air conditioner systems.
Mode Selection
Mode selection is controlled by the mode switches in
the heater control panel and the mode control motor.
When you select a specific mode, voltage is applied
through the dimming control circuit to the LED, which
comes on, indicating the mode selected. Ground is
provided to the mode control motor though that
mode switch. The motor then runs until the air
control door reaches the proper position.
Fresh/Recirculation Selection
When you press the recirculation button, a ground
signal is sent from the heater control panel to the
recirculation control motor. The motor lhen runs
until the recirculation door reaches the opposite
Dosition. When the recirculation button is in the
REC position, battery voltage is applied through the
dimming control circuit to the recirculate LED, and
the LED comes on.
Refer to the Service Manual (Section 21, Heate0 for
specif ic tests or troubleshooting procedures.
61-2

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