1998 HONDA INTEGRA heater

Gonnector ldentification and Wire Harness Routing
Main Wire Harness {Right branchl
Connector or
Terminal
Number of
CavitiesLocationConnects toNot6s
c401
c402
c403
c404
c405
c407
c408
c409
c410
25
3
2
10
2
22
32
lo
Front passenger's door
Under right side of dash
Under right side ot dash
Under right side of dash
Under right side of dash
Behind right kick panel
Behind right kick panel
Behind right kick panel
Eehind right kick panel
Front passenger's door wire
harness (C626)
A/C diode
Heater sub-harness A (C672)
Heater sub-harness A (C671)
Service check connector
ABS sub-harness (C7O l)
Engine control module {ECfM)Engine control module lECM)Engine contfol module (ECM)
23-24

Connector ldentification and Wire Harness Routing
Heater Sub-harness A
Connector or Number of-::'- --. - .-' -:-".: -- Location Connects toI etmtnal uavtt|esNotes
C67'1 J 10 Under right side of dash Main wire harness (C4O4)
C672 i 2 Under right side of dash Main wire harness (C4O3)
C673 t, 2 I Under right side ot dash B{ower motor
C674 4 Behind glove box Blower resistor
C675 4 Behind glove box I Recirculation control motor
C676 3 Behind glove box i A/C thermostat
C677 14 Behind middle ol dash Heater sub-harness B {C681)
Connector ol
Terminal
Number of
CavitiesLocationConnects toNotes
c681
c682
c683
c684
14
I
6
14
Behind middle ot dash
Middle of floor
Behind middle ot dash
Behind middle of dash
Heater sub-harness A iC677)
Mode control motor
Heater {an switch
Heater control panel
Heater Sub-ha.ness B
HEATER SUB-HARNESS A
I
C677 C681HEA
23-46
SUB.HARNESS B
I

T
I
1
J)
Fuso NumberWire ColorComponent{s} or Circuit(rl ftqt6cted
't210AYEUBLKTurn signal/hazard relay
15 AYEUGRNPGM-Fl main relay
GRN or REDSRS unit (VA)
147.5 ABLK/WHTCruise control system
15BLK/YE LAlternator, VSS, ELD unit (USA), TCM, charging system light
't67.5 ABLVBLUABS control unit, rear window defogger relay (Via switch)
117.5 ABLK//ELAVC system, heater system, power marror
187.5 AYEUBLKDaytime running lights relay (Canada)
197.5 AYELEack-up lights
2010 AWHT/YELDaytime running lights control unit (Canada)
2110 ARED/WHTRight headlight (low beam)
2210 ARE D|YE LLett headlight (low beam)
2310 AGRN or PNKSRS unit (VB)
247.5 AGRN/ORNMoonroof relays
Power window relay
7.5 AYEUBLUClock, gauge and indicator lights
Integrated control unit
2620AGRN/BLKWindshield wiper motor, windshield washer motor
10AYEUGRNCigarette lighter
2810AYEUREDAudio unit connector
29Integrated control unit
30RED/BLKDash lights, clock
Integrated control unit
317.5 A8LU/WHTECM. PGM-Fl main relav
10ARE D/BLKFront parking lights, taillights, license plate lights
7.5 AWHT/GRNInterlock control unit, key interlock solenoid
23-49

Dash Lights Brightness Control
Circuit Diagram
UNDER-HOOO FUSgRELAY 8OXUNDEN.DASHFUSE/RELAYEOXtX"f -.------^-;^*;;ilLrcrTswrc.
ffiwHT-lf-FEDGaN
, &TGEAN POSITION INOICATOROIMMING CIFCUIT.ATTGEAB POSITION CONSOLE LIGHT
. CRUISE COI,{TROL DIMMING CIRCUIT.CRUISE CONTHOT MAIN SWITCH LIGHT.GAUGE LIGHTS.HAZAFDWABN NG SWITCH LIGHT. HEATER CONTROL PANEL LIGHTS. REAR WINDOW DEFOGGER SWITCH LIGHT
23-178

)
Switch Removal
CAUTION: Be carelul not to damage the heater con-
trol/center air vent.
1. Carefully pry the switch out oI the heater con-
trol/center air vent.
2. Disconnect the 6P connector from the switch.
Remove the indicator bulb (turn the socket 45o
counterclockwise), and remove the illumination bulb.
REAR WINDOWDEFOGGER SWITCH
INDICATOR BULB(o.84 W)
.l
Switch Test
NOTE: Be careful not to damage the heater con-
trol/center air vent.
'1. Carefully pry the switch out of the heater con-
trol/center air vent.
2. Check tor continuity between the terminals accord
ing to the table.
Terminal
pLN-_\BcDEF
PUSHEDo/:\-oo--o
o-
\:./
-o\:/
RELEASEDo-/:\_o
-oo-
\:,/
/:\\:./
I
6P CONNECTOR
REAR WINDOW DEFOGGER SWITCH
23-217

).1
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
).1
I
Xr
12Fg oAmerican Honda Motor Co., Inc. - All Rights Reserved Service Communications 275 pages

Fuse
NumberFuse NameAmpsPagecomponent or circuit Protected
(POWER
DOOR LOCK)
(RR WIPER
RR WASHER)
R _ HEAD LIGHT
HIGH BEAM
j 1o-2Power door lock control unit
10-2 | Rear wiper
I
tto-e i onLcontrol unit (Canada), Right headlight
L _ HEAD LIGHT
HIGH BEAM
(POWER WINDOW
RR-L)
i 1 10-8i DRL control unit (Canada), High beam indicator light,
i Left headlight
1 0-1Not used
| 1zo-z
I
I Left rear window motor
| (lGN colL)| 15
(POWER WINDOW
FR-R)
(POWEB WINDOW
FR-L)
I Right rear window molor
I
Front passenger's window motol
Driver's window motor
| 120-2
i120 (H/B)
iot 120-2
l(Sedan)
i120 (H/B)
l0:120 ?
IJ13
TURN LIGHTS
FUEL PUMP
(SRS UNIT)
(Sedan)
'lo-2Hazard warning switch
1O-2 | PGM-FI main relay, SRS unit
I
14I (cRUlsE coNTRoL) | 7.510-3 | Cruise control
ALTERNATOR
SP SENSOR
7.510-3Alternator, ECM or PCM ('00 Model), ELD unit,
Gauge assembly, PGM-Fl, TCM ('98-'99 Modelwith A/f),
Vehicle speed sensor
i REAR DEFBOSTER ii RELAY i
10-6i ABS control unit, Rear window defogger
I HEATER A/C
: RELAY
fuC compressor controls, Air delivery, Blower controls,
Fans. Power mirrors
I tnururutruc ucxr I z.s
I otrt av I
I DRL control unit (Canada)10-6
I BACK UP LIGHTS | 7.s | 10-4 I Back-up lights
t
(RUNNTNG LTGHTS) ii DRL control unit (Canada)
(cont'd)
19
6-1

Fuse/Relay I nformation
- Under-hood Fuse/Relay Box (cont'd)
Fuse
NumberFuse NameAmpsPage
BATTERY
I INTERIOR LIGHT
I
1 7.5 110-7 I
I
Component or Circuil Protected
Power distribution
lgnition switch
DLC, Ceiling light, Power antenna motor (Hatchback),
Trunk/cargo area light
47
I Fl E/lvl
POWER WINDOW
I BACK UP (RADTO)
I
15 | 1 0-7 I PGM-FI main relay
Not used
Power window relay
Clock, ECM or PCM, Maintenance reminder unit, Stereo
radio cassette player, TCM ('98-'99 Models with A'/T)
7.5 |10-8
I HEADLIGHT| 40 | 10-8 | Headlights, Interlock system (A/T)
49i DR LOCK,
i suNRooF
10-9 i Moonroof
I
I RR DEFROSTER
+ B SMALL
I Rear window detogger relay
I Dash and console lights, License plate lights,
I Rear parking lights, Taillights
I HORN, STOP
i HAZARD
10-9 | Brake switch, Horn relay
i Gauge assembly ('00 Model), Hazard warning switch
40 | to t I Power door locks, Security system (option)
I HEATER MOTOR II t 0-1I Blower motor relay
20 I 10-1 ; A,/C compressor clutch relay, Condenser fan relay
i Radiator fan relay1 0-1
6-4