1998 HONDA CIVIC Dashboard light

Connector ldentification and Wire Harness Routing
Connoctor or
Tgrminal
Number of
CavitiesLocationConneqts toNot€s
c401
c402
c403
c404
c405
c406
c407
c407
c408
c409
c410
c411
c4't2
c413
c414
c415
c416
c417
c418
c419
c420
c421
c422
c423
c424
c425
c426
c427
c428
c429
c430
c431
c432
c433
c434
c435
c437
c438
't4
l4
8,
1
10
12
24
7
6
18
20
18
7
6
8
7
8
14
2
Above under-dash fuse/relay box
Under left side of dash
Under left side of dash
Under left side of dash
Under left side of dash
Under left side of dash
Under left side of dash
Under left side of dash
Under left side of dash
Behind under-dash fuss/relay box
Under left side of dash
Under left side of dash
Above under-dash fuse/relay box
Under left side of dash
Under-dash relay box
Above under-dash fuse/relay box
Under left side of dash
Under left side of dash
Under left side of dash
Eehind under-dash fuse/relay box
Behind under-dash fuse/relay box
Behind under-dash fuse/relay box
Behind under-dash fuse/rslay box
Behind under-dash fuse/relay box
Under-dash relay box
Under left side of dash
In the steering column cover
In the steering column cover
In the steering column cover
In the steering column cover
Under left side of dash
Under left side of dash
Under middle of dash
Under middle of dash
Under middle of dash
Under middle of dash
Under left side of dash
Under left side of dash
Floor wire harness (C555)
Floor wire harness (C554)
Security system
Cruise control unit
Daytime running lights control unit
Daytime running lights control unit
Roof wiro harness (C7011
Moonroof wire harness (C711)
Front fog light connector
Integrated control unit
Dashboard wire harness (C504)
Dashboard wire harness (C502)
SRS main harness (C802)
Data link connector
Starter cut relay
lgnition switch
Security system
Clutch switch
Clutch inlerlock switch
Under-dash fuse/relay box (C919)
Under-dash fuse/relay box (C920)
Under-dash fuse/relay box (C922)
Under-dash fuse/relay box (C914)
Under-dash fuse/relay box (C915)
Horn relay
Brake switch
Windshield wiper/washer switch
Rear window wiper/washer switch
Turn signal switch
Combination light/,turn signal switch
Cable reel
lnterlock control unit
Secondary heated orygen sensor sub-
harness (C781)
Ay'T gear position switch
Shift lock solenoid
Park pin switch and Aff gear position
console light
Transmission control module (TCMI
Transmission control module (TCM)
ABS
Optional
Canada
Canada
Optional
M
MIT
Optionsl
MlT
Alr
NT
NT
CVT
CVT
G401Left kick panelBody ground, via main wire harness
Main Wire Harn€ss {Left side ot dash and floor branchl: '98 model
*2: Without moonroof*4:With moonroof*5: M/T (with cruise control or for D16Y5 engine)*6: With secondary heated oxygen sensor (H02S)
23-34

Connector ldentification and Wire Harness Routing
Connosto! ol
Tsrminal
Number of
CavitiesLocationConnoqtg toNotes
c401
c402
c403
c404
c405
c406
c407
c407
c408
c409
c410
c411
c412
c4'I3
c4't4
c415
c416
c417
c418
c419
c420
c42l
c422
c423
c424
c425
c426
c427
c428
c429
c430
c431
c432
c433
c434
c435
c447
c448
c449
c450
c451
20
4
14
I
6
1
10
12
24
16
4
7
6
2
18
20
18
7
4
8
o
7
8
14
22
18
Above under-dash fuse/relay box
Under left side of dash
Under left side of dash
Under left side of dash
Under left side of dash
Under left side of dash
Under left side of dash
Under left side of dash
Under left side of dash
Behind under-dash fuse/relay box
Under left side of dash
Under left side of dash
Above under-dash fuse/relay box
Under left side of dash
Under-dash relay box
Above under-dash fuse/relay box
Under left side of dash
Under left side of dash
Under left side of dash
Behind under-dash fuse/relay box
Behind under-dash fuse/relay box
Behind under-dash fuse/relay box
Behind under-dash fuse/relay box
Behind under-dash fuse/relay box
Under-dash relay box
Under left side of dash
In the steering column cover
In the steering column cover
In the steering column cover
In the steering column cover
Under lett side of dash
Under left side of dash
Under middle of dash
Under middle of dash
Under middle of dash
Under middle of dash
Under left side of dash
Under left side of dash
Under middle of dash
Under left side of dash
Under left side of dash
Floor wire harness (C555)
Floor wire harness (C554)
Security system
Cruise control unit
Daytime running lights control unit
Daytime running lights control unit
Roof wire harness (C701)
Moonroof wire harness {C711)
Front fog light connector
Intagrated control unit
Dashboard wire harness (C504)
Dashboard wire harness (C502)
SRS main ha.ness (C802)
Data link connector
Starter cut relay
lgnition switch
Security system
Clutch switch
Clutch interlock switch
Under-dash fus€/relay box (C919)
Under-dash fuse/relay box (C920)
Under-dash fuse/relay box (C922)
Under-dash fuse/relay box (C914)
Under-dash fuse/relay box (C915)
Horn relay
Brake switch
Windshield wiper/washer switch
Rear window wiper/Washer switch
Turn signal switch
Combination light/turn signal switch
Cable reel
lnterlock control unit
Secondary heaied oxygen sensor sub-
harness (C781)
A/T gear position switch
Shift lock solenoid
Park pin switch and A,/T g€ar position
console light
Security system
Security system
IVT gear position indicator trim light
Security system
Keyless door lock control unit
ABS
Optional
Canada
Canada
Optional
At-|.
M/T
Optional
M/T
Atr
Optional
Optional
Optional
Atr
AIT
AJ-|.
G401Left kick panelBody ground, via main wire harness
Main Wire Halness lLoft side of dash 8nd lloor branchl: '99 - 00 mod€ls
*2: Without moonroof*4: With moonroof*5: M/T (with cruise control or for Dl6Y5 engine)*6: With secondary heated oxygen sensor (H02S)
23-36

D
Dashboard Wire Harness
Connector ol
Terminal
Numbel of
CavitiesLocationConnects toNotes
c501
c502
c503
c504
c505
c507
c508
c509
c510
c513
c514
c515
c516
c518
c519
c520
20
24
to
12
5
3
20
5
5
14
r0
5
20
22
5
2
5
Behind dashboard lower panel
Above under-dash luse/relay box
Above under dash Iuse/relay box
Above under dash tuse/relay box
Left side of steering wheel
Left side of steering wheel
Below gauges
Behind gauges
Behind gauges
Behind gauges
Behind gauges
Behind gauges
Right side ot gauges
Right side oI gauges
Beh ind middle of dash
Behind middle of dash
Behind middle of dash
Behind middle of dash
Behind middle of dash
Behind middle of dash
Behind gauges
Under-dash {use/relay box (C912)
Main wire harness 1C411)
Floor wire harness (C553)
Main wire harness (C410)
Cruise main switch
Dash lights brightness controller
Junction connector
Gauge assembly
Gauge assembly
Gauge assembly
Gauge assembly
Gauge assembly
Hazard warning switch
Rear window defogger switch
Audio unit (Keyless receiver circuit)
Audio unit
Security control unit
Audio unit
Security system
Accessory power outlet
Gauge assembly
A"r
SRS
A,/r
Optio nal*'
Option al*'
ABS
G501Under middle ol dashBody ground, via dashboard wire harness
*1: With shiit-up indicator or cruise control system ('96 - 97 models)
With cruise control system ('98 model)
c509 C511 c510 c515
13 lc5l7
*2: '96 98 models*3: '99 - 00 models
c508
DASHSOARD WIREHARNESS
c501
c520
c502 c504
23-39

Connector ldentification and Wire Harness Routing
Roof Wire Harness (Coupe/Hatchback)
Connector ol
Terminal
Number of
CavitiesLocationConnects toNotes
c701
c701
c702
c719
2
6
2
1
Under left side of dash
Under left side of dash
Middle of roof
Front of roof
Main wire harness (C407)
Main wire harness (C407)
Ceiling light
S potlig ht*1: '96 - 98 models*2: '99 - 00 models
Roof Wire Harness (Sedanl
'96 - 98 models'99 - 00 models
*1: '96 - 97 models"2: '98 model*3: '99 00 models
*l:
+2:
Connector or
Terminal
Number of
CavitiesLocationConnects toNotes
c701
c701
c702
c703
c719
2
1
1
1
Under left side of dash
Under left side of dash
Middle of roof
Middle of roof
Front of roof
Main wire harness (C407)
Main wire harness (C407)
Ceiling light (Power)
Ceiling light (Ground)
Spotlighr
Moonroof Wire Harness {Coupe/Sedan}
Connector or
Terminal
Number ot
CavitiesLocationConnects toNotes
c711
c711
c1't2
c713
c713
c714
c714
c715
c117
c718
c719
2
6
6
5
5
4
3
2
4
1
U nder left side of dash
Under left side of dash
Behind dashboard lower panel
Left side of dashboard bracketLeft side of dashboard bracket
Left side of dashboard bracket
Left side of dashboard bracket
Left side of steering wheel
Middle of roof
Rear of roof
Rear of roof
Front of roof
Main wire harness (C407)
Main wire harness (C407)
Under-dash tuse/relay box (C910)
Moonroof open relay
Moonroof open relay
Moonroof close relay
Moonroof close relay
Moonroof switch
Ceiling light
Moonroof motor
Moonroof motor (Tilt switch)Sporlight
Optional
23-54

Ground Distribution
Circuit ldentification (conf d)
'99-00 models:
EWir'rdshield wipe. nolorBGke lluid level swildl
6L^ -- €nrnon €y sv loa-)l- i oala hnk conn€clol lDlcl
8LK
BLK
Windshigld dper^vash€r switdt
Re windo wiperlflasher ssitch
BLK
J
To 9aqe23.A2-
tr
E
UNOEN.DASHFUSgRELAYSOX
-r^ -..-- tmenoo( @ rotunn l ._.l- pa* oin swhrh l\4tl
ClLrldr inlerlod swildr (M,T)
Cruis€ confol unit
BL( ---- Oay me running tights controtund (Canadal_ Ctuldt sfich(l,t/T vrith ruis€ cor rol)
Key'ess door lock control unit
(Fuserelay box sockst)
(Fus€/relay box sod(8t)
(Fusdrelay bor sockel)
(Fuserelay box sock€l)
8LK
BLK
BLK
BLK
8LK
near windoYr delogger rclay
htograted co.Ird unil
Tum signal/hazard lelay
SRS indicalor lighl cirqtil,y'T goer position indicator dimming cirdlit
Accessory poxer sod@l
Gaug€s and indicators
ABS indicalor light ciro.lil
Gauge lighbCruis€ main swil$ lEhlCruiso indicator dimming ciroritoash lohls brighlness confolbtHazard s$tdl indicator liohl
G401
(
oh --- Moonroot swnm
t- iroonrool open relay- Moonroot dose reiay
t
fil BLK -J
: Engine @mparlrnenl wire hamess
: Main wire haness
,JUncll0n@nfreclol
E : Dashboard wire harness
El , Mo*tool *ite har"..
23-80

Combination Light Switch Test
1.Remove the driver's dashboard lower cover and steering column covers (see section 20)
Disconnect the 4P and 7P connectors from the switch.
Inspect the connector and socket terminals to be sure they are all making good contact
. lf the terminals are bent, loose. or corroded, repair them as necessary, and recheck the system.
. lf theterminals look OK, check for continuity between them ineach switch position according tothetables lfthere
is no continuity between any of them. check for continuity in the switch harness
- lf there is continuity in the switch harness. replace the combination light switch
- lf there is no continuity in the switch harness, replace it.
2.
4P CONNECTOR
COMBINATION LIGHT SWITCH7P CONNECTOR
HsadlighUDimmer/Passing Switch :
* : Canada
rrr r-l
l(rr mf ItffiTI A3 A11l
Terminal
Position
B182B3*84B586
Headlight switch
OFF
o---o
LOWo---oo-----o
HIGHo-----oo---o
Passing switchOFF
ONo-----o
Turn Signal Switch :
Teminal
;',*;----__\A1A2A4
RIGHToo
NEUTRAL
LEFToo
23-165

Lighting System
Daytime Running Lights Control Unit Input Test (Canadal
2.
3.
LRemove the driver's dashboard lower cover and
knee bolster (see section 20).
Disconnect the connectors from the daytime run-
ning lights control unit.
Inspect the connector and socket terminals to be
sure they are all making good contact.
lf the terminals are bent, loose or corroded. repair
them as necessary, and recheck the system.
lf the terminals look OK, make the following
input tests at the connector,- lf any test indicates a problem, find and correct
the cause, then recheck the system.- lf all the input tests prove OK, the control unit
must be faulty; replace it.
CavityWireTGst conditionTest: Desired resultPossible cause it result is not obtained
BLKU nderall conditionsCheck for continuity to g.ound:
There should be continuity.
. Poor ground (G401, G402). An open in the wire
A2BLK /VHT
Underall conditionsCheck for voltage to ground:
There should be battery voltage.
Blown No.20 (10 A) fuse in the
under-dash fuse/relay box
An open in the wire
etYEUBLK
lgnition switch ON (ll)Check for voitage to ground:
There should be battery voltage.
Blown No. 18 {7.5 A) fuse in the
under-dash luse/relay box
Faulty ignition switch
An open in the wire
A4RED
Combination light
switch in " =D " posi-
UOn
Check for voltage to ground:
There should be battery voltage.
Blown No. 48 (30 A) tuse in the
under-hood fuse/relay box
Faulty combination light switch
An open in the wire
A1WHT/RED
Combination light
switch OFF; connect ajumper wire between
the YEUBLK and
WHT/RED terminals,
then turn the ignition
switch ON (ll)
Headlights (high beam) should
come on, (and high beam
indicator should come on).
. Poor ground (G201, G202, G40'1,
G402). Blown bulbs. Faulty daytime running lights
resrstor. An open in the wire
GRN/RED
lgnition switch ON (ll),
brake fluid reservoir
full, and parking brake
lever down
Connect to ground: The brake
system light should come on.
Blown No.25 (7.5 A) fuse in the
under-dash f use/relay box
Blown brake system light
An open in the wire
REDiGRNParking brake lever LrpCheck for continuity to groundl
There should be continuity.
. Faulty parking brake switch. An open in the wire
23-166

Controller Input test
NOTEr The control unit is built into the dash lights bright-
ness controller.
'1. Carefully pry the controller out of the dashboard.
2. Disconnect the 3P connector from the controller'
3. Inspect the connector terminals to be sure they are
all making good contact.
. lf the terminals are bent, loose, or corroded, repair
them as necessary, and recheck the system.
. lf the terminals look OK, make the following input
tests at the connector.- lf any test indicates a problem, find and cor-
rect the cause, then recheck the system.
- lf all the input tests prove OK, the controller
must be faulty; replace it
Cavity
Wire side of
lemale termlnals
Test condition Test Desited resultsPossible cause if rgsult is not obtainGd
1RE D/B LK
Combination light
switch ON
Check for voltage to ground:
There should be battery voltage.
Blown No.30 (7.5 A) fuse in the
under-dash Iuse/relay box
Faulty combination light switch
An open in the wire
2BLKUnder all conditionsCheck for continuity to ground:
There should be continuity.
. Poor ground (G401, G402)
. An open in the wire
RED
Combination light
switch ON
Connect to ground:
Dash Iights should come on full
bright.
. An open in the wire
23-181