heater HONDA INTEGRA 1998 4.G Repair Manual

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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

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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

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

Ground-to-Components I ndex
NOTE: All ground wires are BLK unless otherwise noted.
GroundPageComponents or Circuit Grounded
Battery (BLIVYEL)
--t'I Valve cover (BRN)
G101t.+
and
14-1
Daia link connector (BRN/BLK), Engine or powertrain controt module (pct and pG2
are BLK; LG1 and LG2 are BRN/BLR, IAB controt solenoid valve (GS-B),
lmmobilizer receiver unit ('00 Model) (BRN/BLR, PGM-Ft main retay, Radiator fan
switch, Transmission control module ('98.99 Models with MD (2 BRN/BLK wires),
Vehicle speed sensor, WEC pressure switch (GS-R, Type-R)
Shielding between the ECM or PCM and these components (all have BRAIDED wires):
CKF sensor, Primary and secondary heated oxygen sensors, Knock sensor (GS-R,
Type-R), TDC/CKP/CYP sensor
Shielding between the TCM ('98-'99 Models) or PCM ('00 Model) and these components(all have BRAIDED wires): Countershaft speed sensor, Mainshaft speed sensor
G1s1 ii Condenser fan motor
Brake fluid level switch, Cruise control actuator, Left front parking/turn signal light, Left
front side marker light, Left headlight, Power steering pressure switch (USA), Rear
window washer motor (Hatchback), Windshield washer motor, Windshield wiper motor
14-3
Blower motor relay, ELD unit, Badiator fan motor, Right front parking/turn signal light,
Right front side marker light, Right headlight.....plus everything grounded through G401
ABS fail-safe relay, ABS pump motor
G40114-4
ano
l4-c
A,/T gear position switch, Cigarette lighter, Clutch switch (M,/T), Ctock, Ctutch interlock
switch (MfD, Combination wiper switch (2 wires), Cruise control main switch, Cruise
control unit, Dash lights brightness controller, Data link connector, Daytime running
lights control unit (Canada), Front passenger's door key cylinder switch, Frontpassenger's door lock switch, Gauge assembly (2 wires), Glove box light, Heater
control panel, Heater tan switch, lgnition key switch, Integrated control unit, Interlock
control unit (AfI), Maintenance reminder unit, Mode control motor, Moonroof relay,
Moonroof switch, Parking pin switch (AfD, Power window relay, Rear window defogger
switch, Service check connector, Turn signal/hazard relay.....plus everything grounded
throuoh G201
Driver's door key cylinder switch, Driver's door lock actuator, Drivels door lock switch,Driver's seat belt switch, Fuel pump (BLI(/WHT), Fuel tank unit (BLI(/WHT), power doorlock control unit, Power mirror switch, Power window master switch (2 wires)
Hatch key cylinder switch, Hatch latch switch, Hatch opener actuator, Hatch ooener
switch, Left and right back-up lights, Left and right brake light/taillights, Lett and right
rear parking lights, Left and right rear turn signal lights, License plate lights, power
antenna motor, Trailer lighting connector..... plus everything grounded through G751
6-6
'14-8G503
(Sedan)
High mount brake light, Left and right back-up lights, Lett and right inner brake tighv
taillights, Left and right outer brake light/taittights, Left and right rear parking tights, Leftand right rear turn signal lights, License plate lights, Rear window detogger, Trailer
lighting connector, Trunk latch switch

Power Distribution
- From Fuses to Relays and Components (cont'd)
FU'E 16 Err*rrilnEAR tEArEn : tFurflnc ,:oEFFosrER { flfo"t-t i { l'rtTr :!7.5A I : I 7.5a ,l
ffi-.^,; l:lL - - L __ _ _ J_ _ _ _ _ J __ _ _ I _ __ _ J _ _ 16 J9:91 L _L _ _ _:i'tr F"?%,, 'tr'F"Xlg", 331'$A"'o* ' f F;03,, ' lf ;'"11'" {H!, i ' f t"X13,, :
I eLxaLul (rcrt'--'-' I 16z
""""'
i I :
r:_lrl:
":1",-:ri;:t
ll".",:{.tFz'€; I lll".,. i
rt i'--t rt i--t i ;i--i i
t__J t__l r__J !._-J ! i t__.t iBEAR ABS REAR POWER II ' DA\.TIME ;wrNDow coNTRoL wtNDow MtRRoB I : RUNNTNGoEFoccER uNrr DEFoccER swtrcH It ; LtcHTsSWITCH Page 44 RELAY paoe 141 I , CONTROL :Page 64 pHoro 1oo Page 64 or i41-t [ ' Uttf :PHoro111\sedan) pHoro5a
! j Page 110-9
|
! l-- canada.- it*rarffi'
"JI.f t*', u..^""1
-.
)t .,1, r*,.
BLK,YEL
BLK,YEL
ml'"
]"*.r-A?1
t*"1
tl
BLOWENMOTORBELAYPage 60Pttofo 22
rF^;'l
t*l
tl
Atc
UNDER-DASHFUSE/RELAYBOX
c677
L--J |.--J L--JA/C MODE HEATERTHERMOSTAT CONTBOL CONTROI.Pages 62-1 MOTOR PANELand 63.1 Paqe 61 I Paoes61.PHO|O zJ psiro aa 62--1 and63'1
r'--?1 r;^;'r
t*"lt*"1
tttlL--J L--JCONDENSER NADIATORCOMPRESSOR FANCLUrcHBELAYPage 62
RELAYPage 63
FANRELAYPags 63or 63-2PHA|O )3 PHO|O 22 i------JUNDER-HOODFUSE/RELAY BOXPHQ|O2l
@
10-6

ENGINE CONTROLMOOULE (ECM)PHOfa 77
ll
tSecondaryHO2S input{sHo2s)D14i-------------J
FUSE 'I5
ALTERNATOFSP SENSOF
UNDER-DASHFUSE/RELAYBOX
12
See PowerDistfibution,
--':':'5 ic438la Y calo
See Ground IDistribution, llpage 14-1 BLuiFEo I
YT
BFA,DED ! u"o'o.o r$l
LTSL+J
See Power Distribution,page 10-3.
gLKAVHT
I
""^,"*
I
-l 'fir*"
*^lt:: | !
I
-""-
|
!J
["r
I See GroundBrK/BLK
I
o":o,T:il
![oR,
)12'a-a'G101: PHOfO2S
1
t
GNN
ORN/BLU
c454PHOfO 93
SECONDARYHEATEDOXYGENSENSOR(HO2S)
EVAPORATIVEEMISSION(EVAP) CONTROLCANISTERVENT SHUT VALVE
EVAPORATIVEEMISStON(EVAP) BYPASSSoLENOtOVALVE
GBN/NEO
c793
c510
c421
c408
EVAP controlcanister ventshut valveconrol
'-,r-l
EVAP bypass I
ENGINECONTROLMODULE(EcM)
429(so2srrlc)SEcondaryHO2Sheatercofltrol
solenoidvalve control
(cont'd)
23-5

Blower Controls
FUSE 17HE TEn ,'/C nELAY7.5ASee PowetDistribution,page 10-6.
UNDER.DASHFUSE/RELAYBOX
---G;;-'
/ HEATER I'OTOR
l*^
I
I
I
---1"*'
UNOER.HOODFUSE/RELAYBOXL - y' - - - - - - - -:: - - J9 Y C439.KryEL ! P/roro 62BLK|/EL ll PHOIO 62
BLOVYERMOTORFELAYPHOTO 22
9s_____i
".u-", f, i'ii'o '.
1 l c6z3
Hfib#i
".,,".?[ "ut'
- -i;a' c217BLU 1,vi{r
J
PHoro 'u
C677PHOTO 69:rI#
c683
HEATERFANswtTcH
6 cnr
)-<
See A/CCompressorControls
1BLKc683
See Ground Distribution,page 14-4.
I
J
See GroundOistribution,page 14-2.
: G201
60