brake HONDA INTEGRA 1998 4.G Owners Manual

Heater Unit
Replacement
SRS components are located in this area. Review the
SRS component locatio.s, precautions, and procedures
in the SRS section (23) before performing repairs or ser-
vtce.
1. When the engine is cool, drain the engine coolant
from the radiator (see section 1O).
@ oo not remove the radiator cap when
the engine is hot; the engine coolant is undol
prsssure and could sevdely scald you.
2. Ooen the clamD, then disconnect the heater valve
cable from the heater valve arm.
HEATER VALVE CABI-E
I
i
21-22
3. Disconnect the heater hoses lrom the heater unit.
CAUTION: Engine coolant will damaga paint. Ouick-
ly rinse any spilled engine coolant from painted
sudaces.
NOTE: Engine coolant will run out when the hoses
are disconnected, drain it into a clean drip pan.
4. Remove the mounting nut from the heater unit.
NOTE: When removing the mounting nut, take care
not to damage or bend the fuel pipes, brake pipes,
etc.
8 x 1.25 mm22 N'llt. 12.2 kgl'm, 16 lbl.tl)
CLAMPS
HEATER HOSES

J
Electrical
Speciaf Toofs ..........................23-2
Troubleshooting
Tips 8nd Precautions .......................,..,.,.,.,.,......,..., 23-3
Five-step Troubleshooting ............,......,.,.,...,..,....., 23-5
Schsmatic Svmbols ...............23-6
Wire Color Code3 .. ................. 23-6
Relay and Control Unit Locations
Engine Compartment ......,.,.................,.,.,.,.,.,,,, 23-7
Dashboard and Door .........,...........,.....,.,....,.,.... 23-8
Dashboard and Floor ......................................... 23-10
Ouarter Pan€f .,,.,...,.,..,...,,,23-12
Connector ldontification and WireHarness Routing ......,.,......23-'13
Index to Circuits and Systems
Airbag
* Integrated Control Unit .....,.,.,.....23-152* Interlock Sytem .,...,.,...........,. 23.146
Lights, Exterior
Eack-up LighB ..................23.187
Brake Ligh$ ......................23-190*Daytime Running Lights (Canada) ................... 23"164
Front Parking Lights .......................................... 23-173
Front Side Marker Lights .................................. 23-173
Front Turn Signal Lights ..................-.......,...,.,. 23-173* Hazard Warning Lights ....................,........,....... 23-192
Headlights.....23-169
23-253 powerDistribution..................... 23-5/r
Air Conditioning.....,....... Soction 21
Alternator ..........,................... 23.99
iCigarette Lighter .........23-212
*Cruise Control
Distributor
'.'.,.'.'.,.'...,,,,.,''.'.,.',.'''.' 23.277
.............................. 23.88
................... 23-90lgnition Timing ......
Indicator Lights
Key-in Reminder System
Maintenance Reminder System*Seat Belt R€mindor System .,...........................* Side Marker/Turn Signal/HazardFlashcr Svstem .................23-192
Spark Plugs ............................23-98
Starting System .....................23-74* Stereo Sound System ...,......,..........,...,......,.,.,.,..,., 23-196
Supplemental Restraint System (SRS) ................ 23-277
Vshicle Speed Sensor (VSS) ................................. 23.130r Wiper/Washer System .........................................., 23-265
*Read SRS precautions on Psge 23-283 before working
in those areas,
23-154
23.136
23"133

Connector ldentification and Wire Harness Routing
Engine Compartment Wire Halness
nll
Connectoa ot
Terminal
Number of
CavitiesLocationConnects toNotes
c301
c302
c 302
c303
c304
c306
c307
c308
c309
c310
c3l 1
c312
c314
c316
c317
c318
c319
c320
20
't8
1
14
2
3
5
1
1
2
2
4
2
2
1
2
2
2
3
Behind left kick panel
Behind left kick panel
Behind left kick panel
Behind left kick panel
Lett side of engine compartment
Lett side of engine companment
Lett side of engine compartment
Left side of engine compartment
Left side of engine compartment
Left side of engine compartment
Left side of engine compartment
Middle of engine compartment
Lett side of engine companment
Left side of engine compartment
Behind left headlight
Behind left headlight
Behind left headlight
Behind left corner of front
DUmper
Behind left corner ol front
bumper
Behind lett corner of front
bumper
Behind left co.ner of lront
bumper
Main wire harness (C423)
Main wire harness {C424)
N4ain wire harness (C424)
Front fog light system
Engine wire harness (C126)
Engine wire harness (C'127)
Test tachometer connector
Daytime running lights resistor
Windshield wiper motor
Brake f luid level switch (+ )
Brake f luid level switch ( - )
Power steering pressure (PSP) switch
Lett front wheel sensor
Cruise control actuator
LeIt headlight (Low beam)
Lett headlight {High beam)
Front fog light system
Windshield washer motor
Rear window washer motor
Left front side marker light
Left front turn signal/parking lights
Option
Canada
USA
ABS
Option
G301Lelt side of engine compartmentBody ground, via engine compart-
ment wire harness
23-20

Connector ldentification and Wire Harness Routing
Main Wire Hsfness {Left branch}
Connector ol
TerminalNumber ol
CavitiesLocationConneqts toNot6s
c406
c41 1
c4't2
c413
c414
c415
c416
c417
c4l8
c419
c420
c421
c422
c423
c424
c424
c425
c426
c427
c428
c429
c430
c431
c43'rc432
c433
c434
c435
c436
c431
c438
c439c440
c441
c442
c443
c444
c445
c446
c447
c44ac449
c450
c451
c452
c452
c453
c454c455
16
2
2
14
4
8
14
20
22
26
Center floor
Center floorCenter flodrCenter floorUnder left side of dashBehind Ieft kick panel
Behind left kick panel
Behind left kick panel
Behind left kick panel
Behind left kick panel
Behind left kick panel
Behind left kick panel
Behind left kick panel
Under left side of dash
Under left side of dash
Under left side of dash
Under left side of dashUnder left side of dashUnder left side of dashUnder left side of dashUnder left side of dashUnder left side of dashUnder left side of dash
Under left side of dashUnder left side of dashUnder left side of dashUnder left side of dashUnder left side of dashUnder left side of dashUnder left side of dashBehind dashboard lower coverBehind dashboard lower coverBehind dashboard lower coverBehind dashboard lower coverBehind dashboard lower coverBehind dashboard lower coverUnder leit side of dashUnder left side of dashUnder left side of dashUnder left side of dashUnder left side of dashBehind under-dash fuse/relay boxUnder left side of dashBehind dashboard lower coverBehind dashboard lower coverBehind dashboard lower coverCenter floorUnder middle of dashUnder left side of dash
Data Iink connector (DLC)
A,/T gear position console lightShift lock solenoidAy'T gear position switchInterlock control unitDaytime running lights controlOaytime running lights controlCruise control unitJunction connectorTransmission control module(rcM)
Transmission control module
{TCM)Rear wire harness (C501)
Rear wire harness (C502)
Engine compartment wire harness(c301)
Engine companment wire harness I *1
(c3021 IEngine compartment wire harness(c302) lRoof wire harness {C663} |Security system {Option) | CanaAaSRS main harness (C802) |Clutch interlock switch I VnClutch switch (With cruise control) M/TDashboard wire harness (C552) AlTBrake switch lwithout cruise Icontrol) |Brake switch (With cruise control)lgnition switch ISecurity system {Option) CanadaCombination light switch /Combination light switch ICombination light switchCombination light switchUnder-dash fuse/relay box (C913)
Under-dash fuse/relay box (C916)
Underdash fuse/relay box (C917)
Under-dash fuse/relay box (C923)
Under-dash fuse/relay box (C924) |Under-dash fuse/relay box {C918) I OptionalSecurity system (Option) CanadaSecurity system (Optionl CanadaPGM-Fl main relayStarter cut relay ] M,.fRear window defogger relay IIntegrated control unitSecurity system (Option) CanadaHorn relay
Dashboard wire harness (C553)
Dashboard wire harness {C553) | -2
Parking pin switch I A,"ISecondary HO2S
Cable reel
Afi
I Atr
lf[
unit ] Canadaunit I Canada
16
14
20
't2
ti
I'
li
ll
li
+4
3
G401 Behind teft kick panelBody ground, via main wire harness*1: RS+2: Except RS
23-26

Gonnector ldentification and Wire Harness Routing
Rear Wire Harngss {Hatchbackl
Connector or
Terminal
Number of
C8vitiesLocationConnec{s toNotos
c501
c502
c504
c505
cs06
c507
c508
c509
c510
c51 1
c512
c513
c514
c515
uc to
c518
c519
c520
c522
c524
c528
c529
c530
c531
l6
14
8
16
14
2
1
I
8
3
1
2
2
2
20
20
2
2
6
2
2
2
3
4
Behind left kick panel
Behind left kick panel
Behind dashboard lower cover
Behind dashboard lower cover
Behind dashboard lower cover
Driver's door
Center floor
Center floor
Left quarter panel
Fuel tank
Fuel tank
Right quarter panel
Right quarter panel
Left quarter panel
Left quarter panel
Left quaner panel
Left quarter panel
Left side corner of cargo area
Left side corner of cargo area
Left side corner of cargo area
Left rear corner of cargo area
Center of cargo area bulkhead
Right rear corner of cargo area
Center of cargo area bulkhead
Right side of cargo area
Right side of cargo area
Right side of cargo area
Center of cargo area bulkhead
Center of cargo area bulkhead
Center of cargo area bulkhead
Left side corner of cargo area
Main wire harness {C421)
Main wire harness {C422)
Underdash fuse/relay box (C912)
Underdash fuse/relay box (C915)
Dashboard wire harness (C554)
Driver's doo. wire harness (C601)
Driver's seat belt switch
Parking brake switch
Driver's door switch
Fuel pump
Fuel gauge sending unit
Passenger's door switch
Right rear speaker
Left rear speaker
Noise condenser
Connector C517
Connector C516
Power antenna motor
Cargo area light
Trailer lighting connector
Left taillight
License plate lights
Right taillight
Hatch latch switch
Hatch wire harness (C752)
Hatch wire harness (C751)
Hatch wire harness (C757)
Hatch lock actuator
Hatch key cylinder switch
Hatch opener actuator
Hatch opener relay
Left side of floor
Center of cargo area bulkhead
Body ground, via rear wire harness
Body ground. via rear wire harness
riI

Connector ldentification and Wire Harness Routing
Connector or
Terminal
Numbel of
CavitiesLocationConnects toNotes
c501
c502
c503
c504
c505
c506
c507
c508
c509
c5l0
c511
c512
c513
c514
c515
c517
c518
c519
c520
c521
c522
c523
c527
c528
c529
c530
c531
c532
c533
c534
c535
cs36
14
8
14
2
1
1
8
3
1
2
2
1
20
20
3
2
6
4
2
4
6
6
1
1
2
1
1
4
2
4
Behind left kick panel
Behind left kick panel
Behind dashboard lower cover
Behind dashboard lower cover
Behind dashboard lower cover
Driver's door
Center floor
Center floor
Left B-pillar
Fuel tank
Fuel tank
Right B pillar
Above right side of trunk
Above left side of trunk
Left quarter panel| .{+ ^',rrrar ^rnal
Left quarter panel
Left side corner of trunk
Above center of trunk
Left side corner of trunk
Left rear corner of trunk
Right rear corner o{ trunk
Right rear corner ot trunk
Lelt rear door
Right rear door
Left quarter panel
Left side of rear window
Above right side of trunk
Right quarter panel
Right side of rear window
Left side of trunk lid
Center of trunk lid
Right side of trunk lid
lvlain wire harness (C421 )
lvlain wire harness (C422)
Underdash fuse/relay box (C912)
Under dash fuse/relay box (C915)
Dashboard wire harness (C554)
Driver's door wire harness (C6Ol)
Driver's seat belt switch
Parking brake switch
Driver's door switch
Fuel pump
Fuel gauge sending unit
Front passenger's door switch
Right rear speaker
Left rear speaker
Noise condenser
Connector C517
Connector C516
Power antenna motor
Trunk light
Trailer lighting connector
Left outer taillight
License plate lights
Right outer taillight
Lett rear door wire harness
(c651)
Right rear door wire harness
1C656)
Left rear door switch
Rear window defogger {+ )
High mount brake light
Right rear door switch
Rear window detogger (- I
Left inner taillight
Trunk latch switch
Right inner taillight
G501
G502
G503
Behind left kick panel
Left side of tloor
Above center of trunk
Body ground, via rear wire
harness
Body ground, via rear wire
harness
Body ground, via rear wire
harness
Rear Wire Hamess {Sedan}
I
ri
I
i
I
li
!

Gonnector ldentification and Wire Harness Routing
Hatch Wire Halness (Hatchback)
Connactoa oa
Tcrminal
Numb€r of
CavitiesLocationConnects toNot€s
c751
c152
c754
c755
c757
c758
2
1
2
2
Bight side of cargo area
Right side of cargo area
Right side of rear window
Right side of hatch
Middle of hatch
Middle of hatch
Right side of cargo area
Middle of hatch
Rear wire harness {C526}
Rear wire harness (C525)
Rear window defogger (+)
Spoiler sub-harness (C761 )Rear window wiper motor
High mount brake light
Rear wire harness (C527)
Tailgate open switch
Right side of hatchBody ground, via hatch wire
narness
*1: Hatchback with rear sDoiler
Spoiler Sub-harness (Hatchback with Rear Spoilell
Connector or
Telminal
Number ot
CavitiesLocationConnects toNotes
c761
c762
c763
2
1
1
Right side of hatch
Middle of hatch
Middle of hatch
Hatch wire harness (C754)
High mount brake light { + )High mount brake light { - )
Rear Window Defogger Ground Wire {Hatchback)
Connectot or
Telminal
Number of
CavitiesLocationConnects toNotes
c7711Left side of rear windowRear window defogger (- )
G711Left side of rear windowBody ground, via rear window
defogger ground wire
23-44

J
)1 -
Fuso NumborAmpsWir€ ColorComponent(s) or Circuh(rl Protastcd
41100 ABattery. power distribution
4240AWHT/BLKlgnition switch (BAT)
437.5 AWHT/REDCeiling light, cargo area light, data link connector (DLCl, power
antenna connector
44't5 AYEL/WHTPGM-Fl main relay
45Not used
4640AWHT/8LU
No. 7 (20 A) fuse (Via power window relay), No. 8 (20 A) tuse (Via
power window relay)
No. 10 (20 A) fuse (Via power window relay), No. 11 (20 A) fuse (Via
power window relay)
417.5 AWHT/BLUClock,8udio unit connector, ECM, TCM, Maint€nance reminder unit
4840AWHTCombination light switch (Headlight)
4930AWHT/BLUMoonroof relay
5040AWHT/GRNRear window defogger {Via rear window defogger relay)
51154WHTCombination light switch (Dash lights)
20AWHT/GRNHorn, horn relay, brake lights, AgS control unit, ECM, TCM
10AWHT/GRNTurn signal/hazard relay, hazard warning light
5440AWHT/flEDNo. 1 (20 A) fuse
40ABLU/WHTBlower motor (Via blower motor relsy)
56204BLU/BLKCondenser fan motor (Via condenser {an motor relay)
REDA,/C compressor clutch (via Ay'c comp.essor clutch relay)
57204BLVREDRadiator f8n motor (Via radiator fan relay)
23-53

Power
Circuit
Distribution
ldentification
UNDER.HOOO ABSFUSE/RELAY 8OX
ABS OUMP MO'OF CELAY
I Li,z (via ABS lail.sale telay)
L lgS moou aror un r(Va ABS lai.sale retay)
N0.62 (20A)FUSElvia ABS lai-l\sale re ay /
ABS pump motor
ABS conlrol unir (MCK)
ABS con$olunit (PMR)
Hazad warning lightTurn signal/hazard elay(Viaswilch)Horn
BRN/YEL
YEUFED
8LK - Shner molor
BLK/RED
T
G1
GmlG401
ALTERNATORwHriGRN---
WHT/GRN -No rs {7.5A1 V"LL,,r,
_f,-"*
GRNMHT -F ABS conlrollnrt
t- EcM TcM_ &eke ughts
GRN/RED - ECM
*HT,BLK --+ ig|ryJ,itil.* F^r
F UNDEF OASHvlHi.nED -I4 > FUSE FELAY BOXLz {To page 23 59)
YEITWHT - PGM.Flmain retav
T. UNDER.DASHI/HT a_U -l 'l > .uSE RELAV 8OXfro page 23 57)
ClockECM
TCMMainlenance reminder unl
MT/GRN --T Horn relav
-ol- WHTTGRN -l
BRAKE SWITCHION: Pedal depressedl
23-54

J
BrK-
BrK---
Lell headlighl {High beam)
Lell headlighl (Low beam)Cruise conlro aclualor
Lell lrcfl parkirElurn signallighlLell lront slde maker lighl
Windshield wiper molor
Wndshleld )I Wasner molor
Brake lluid level switchPower sleenng pressure (PSP)swilch (USA)
BLK - Healer lanswlch
J
EL^- Enrlron {€y swrcn- Data [nk conneclor |DLC)
BL(
Fronl passenge/s door key cylinder switdrFronl passonger's door lock swilch
Seavice cieck conneclorClulch swilch (MIT wilh crLr se conlrol)Inle ock contfolunit l ,^-,Parking prn swlch J u' t
Windshi€ld wipefl^Iasher sw 1ch
G40l
tr
tr
N
: Eng ne companmentwife harness
: Fronl passenge/s door wire hamess
: Healer sub.harness A
: Healer sutsharness B
tr
4)(cont'd)
G3o1
(From page 23-62)
;L^ ------ A/T gear posrron sw cn
l- Cldch inledock sw cl rM/.'- Fear window w pe,,wdsl'er sw cl
_l__{BLK_-
UNDER.OASH FUSE/RELAY BOX(To page 23 64)