1998 HONDA CIVIC brightness controller

Lighting System
Gomponent Location Index (cont'dl
TURN SIGNAL INDICATOR LIGHTDASH LIGHTS BRIGHTNESSCONTROLLERController Input Test,page 23-119COMBINATION LIGHT SWITCHTest, page 23'165
TURN SIGNAL/HAZARD RELAYInput Test, page 23-'172
HIGH BEAM INOICATOR LIGHT
L ILI LILI LT
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r1 n11t'1n Ttr1 r1 - 11 t-1Tt-l T1r-t L.l Lt r-t r-t LJ ! ! LJ LJ ! LJ !J r-l
23-162

Turn SignallHazard Flasher System
UNOER.DASHFUSE/RELAY 80X
No.12l7 5A)
Gircuit Diagram
UNDER.HOOD FUSE/RELAY 8OX
IJ
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,'|,."J,-(NOt
GRN/YEL
t,
I'RED
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II
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DASH LJGIlTSBRIGHTNESSCONTROLLER
q
BLK

Dash Lights Brightness Controller
UNDEF.DASHFUSEi RELAY 8OX
|-;il;I-l-*-Tl
I
IREDi 8LK
cotvBiNATloNLIGHT SW]TCH
Circuit Diagram
,4.wHT -tlf- RED/GBN
UNDEF HOOD FUSE/RELAY BOX
23-180
G401G402

UNDER DASHFUSE/RELAY 80X
r*.i,,";l
I
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IYEUFEDWHTiELU
Circuit Diagram ('96 - 98 modelsl
A15A16
NoJ0 (7 sA)
v
IRED]BLK
RED
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J
DASH LIGHTSBRIGHTNESSCONTROLLER
ANTENNALEAD
BRN/WHTBLK
G501
LEFT FHONTDOOF SPEAKER
I RED,^/Er
ILIl
RIGHT REARSPEAKER
I BLU/YEL
IIIt
SPEAKER
q-
IGN TION SWITCHUNDER.HOOD FUSE/FELAY BOX
AUDIO UN T(STEREO RAOLO TUNER)
@
LEFTRIGHTTWEETER
GRY]BLK
23-189

Stereo Sound System
Stereo Radio Tuner Terminals
'96 - 98 models:
For keyless entry . t6p coNNEcroR(and securrty) syslem
To DIN CORD
To DIN CORD
(for securitysystem)
Cavity Wire
A1RED/GRNRight front door speaker o,
right tweeter @
BLULeft front door speaker @,
left tweeter @
A3RE D/B LKLights-on signal
A4WHT/BLUConstant power (tuning
memoryl
A5YEL/REDACC (main stereo power
suppry)
A7BLUI/ELLeft rear speaker O
A8RE DI/E LRight rear speaker O
A9BRN/BLKRight front door speaker O,
right tweeter o
A10GRY/BLKLeft tront door speaker O,
left tweeter O
412REDDash lights brightness
controller
A14BLKGround (G501)
415GRYMHTLeft rear speaker O
Al6BR N/VVHTRight rear speaker O
Terminals A6, A11 and A13: Not used
23-192
'99 - 00 models:
CsvityConnccts toWire
2YEL/REDACC (main stereo power
suppry)
5RE DI/E LRight rear speaker @
BLUI/ELLeft rear speaker @
7RED/GRNRight front door speaker @,
right tweeter @
8BLULeft front door speaker @,
left tweeter @
9RED/BLKLights-on signal
10WHT/BLUConstant power (tuning
memory)
15BRN,ryVHTRight rear speaker O
GRYMHTLeft rear speaker O
17BRN/BLKRight front door speaker O,
right tweeter O
18G RY/BLKLeft front door speaker O,
left tweeter O
'19REDDash lights brightness
controller
20BLKurouno t(l5u t,
Terminals No. 1, 3, 4, 11,12, 13, and 14: Not used

Ground-to-Components I ndex
f.,lONOTE: All ground wires are BLK unless otherwise noted.
GroundPageComponents or Circuit Grounded
Battery (BLKYEL)
Steering pump bracket
t+-rg ITransmission housing
l
G101
(-1)
G101
(-2)
14-2
and
14-3
ano
14-1
Powertrain or engine control module (PG1 and pG2 are BLK: LG1 and LG2 are
BRN/BLK), EGR control solenoid valve (CW, EGR valve and lift sensor (Dt6yS enginewith M,/T), Engine coolant temperature switch, pGM-Fl main relay, power steeringpressure switch (USA), Primary HO2S (D16Y5 engine with l\/,/T), Vehicle speed sensor,VTEC pressure switch (D16Y5/D16Y8 engines), CKF sensor (BRN/BLK), Transmission
control module (CYf) (Pc1 is BLK: LG1 is BRN/BLK)
Shielding betvveen the PCM or ECM and these components (all have BRN/BLK wires):
CKF sensor, TDC/CKP/CYP sensor. Primary and secondary heated oxygen sensors.
Knock sensor (CWDl6YB engine), Mainshaft speed sensor (AiT except CVT),
I Countershaft speed sensor (A/T except CVf)
Shielding between the TCM and these components (CVT) (all have BRN/BLK wires):
Drive pulley speed sensor, Driven pulley speed sensor, Secondary gear shaft
speed sensor
Powertrain or engine control module (PG1 and pG2 are BLK; LG1 and LGz are
BRN/BLK), EGR control solenoid valve (D16Y5 engine), EGR valve (Dt685), Engine
coolant temperature switch, Fuel pressure regulator shut-off solenoid valve (D1685),
PGM-FI main relay, Power steering pressure switch (USA), Vehicle speed sensor, VTECpressure switch (All except D16Y7 engine), CKF sensor (A

except 81642) (BRN/BLK)
Shielding between the PCM or ECM and these components (all have BRN/BLK wires):
CKF sensor, TDC/CKP/CYP sensor, Primary and secondary heated oxygen sensors,
Knock sensor (All except D16Y7 engine), i/ainshaft speed sensor (Arf except CW),
Countershaft speed sensor (A,/T except CVf), Drive pulley speed sensor (CW), Drivenpulley speed sensor (CVT), Secondary gear shaft speed sensor (CVf)
I Badiator fan motor, Right front parking/turn signat tight, Right headtight
G20214-4I Cruise control actuator, Left front parking/turn signal lights, Left headlight, Rear window
I washer motor, Windshield washer motor, Washer fluid level switch (,99-'00 Canada)
G401| +-o
and
14-7
Accessory power socket, Brake fluid level switch, Clutch interlock switch (M/T), Clutchswitch (lillT with cruise/D16Y5 engine with MfD, Combination wiper switch (Z wires),
Cruise control main switch, Cruise control unit, Dash lights brightness controller, Data
link connector, Daytime running lights control unit (Canada), Gauge assembly, Horn('96-'97 models), Integrated control unit, Interlock control unit (ArI), Keyless door lock
control unit ('99-'00 models with keyless), Moonroof close and open relays, Moonroof
switch, Park pin switch (A/r), Power window relay, Rear window defogger relay, Rear
window defogger switch ('96-'98 models), Steering lock, Stereo radio tuner (,96-,98
USA: LX, EX, and HX), Turn signal/hazard relay, Windshield wiper motor.....plus
everything grounded through G402
6-6

cRutsECONTROLMAINswrTcHPage 34
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. - -' accessory
: security system :
i secun,rY ;
: SYSTEMi coNNEcroR :' (oPTroN)' Page |33
: '. rg;'3,, :, I vrfl,v 58
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REARWINDOW DASH LIGHTSDEFOGGER BBIGHTNESSSWITCH CONTROLLER
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'99'00 modelspre-wired lor-_----accessory, security system
I srcunrw sEcunrrY :, SYSTEM SYSTEM ;i CONNECTOR CONi{ECTOR '' (oPTroN)
: Page 133-4
PHO|O136'
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.-- USA: LX. -' .-' vo-Jl --', EX, and ilx mooers
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MOONROOF
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MOON-ROOFOPENRELAYPage 122ot 122-1
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POWENwrNDowNELAYPage 120?HOm 59
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14-7

UNDER.DASHFUSE/RELAYBOXPHOTO 58
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REO/ALK
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HAZARD , REAR ' CRUISEWARNING. WINDOW :CONTROLSwITcH . DEFoGGER; MAINPage 114-1; SWITCH ' SWITCHvtEv/ 32 , Page114-1 'Pago114-1
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RED/BLK
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OASH LIGHTBRIGHTNESSCONTROLLERPage 114-1
(cont'd)
FIJSE l0
100-1