1999 HONDA CIVIC Hood

Lighting System
Circuit Diagram (Canada)
UNDER.HOOD FUSEi RELAY BOXBATTERY
BFAKE SYSTEMLIGHTNTEGRATEDCONTROL UNIT
f-7
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IFED/GRN
REDiGFN
II
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Yro*, ,,r'oI LEVEL SW TCH
t |
lclosed : Floal downl
BLK
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-L..
G401G402
T
.:
BLK
n:
G40lG402
BLK
I
G201
RED/GRN RED/GBN
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ttL
| | las*,
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Alr
Y,o" r.o" I
liiqff'- |BLK BLK
tl
dT--
G401 G202G402
l\------tr -1
d,$,E" T d
RED/BLU RED/REDiGEN
UNDEF DASH FUSE/RELAY BOX
I
)) N0.20tl0Al)'
No.1g(7.5A)No.50 0A)
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llltti /i[ii i,II
ll
llri, zll",ll iu"x
TT
FEDiGRN R€D
tl
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ttuLj
il]-
YEL REDTWHT FED/BLU FED/8LK RED/ BLK
tt++
IIVV| | .DASF L.GHTS . oAB(^rG -TGHTSI I .DAS-LGH'S.TALL'GCTS
| | 33''9+il4[','o L.ENSEoLATELTG'TS
I l-,ro,u,rffl,
^-^^-.*^,{*"'"0-
tlI qsnlq,rr DAYT'ME qUNNINGLIGHTS FES STOF
nd--f)
irt* | | Trt* Iorr Itt I---J \---J-------J
-rGHr
lt*"','
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I
YEL/BLK
DAYTIMERUNNING LIGHTSCONTROL UNIT
RED/GHN R
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5
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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

Headlights
Adjustment
Eoforo adiu3ting th€ h.adlights:
. Park the vehicle on level surface.
. Make sure the tire prgssures are correct.
a The driver or someone who weighs the same should
sit in the driver's seat.
96 - 98 modols
1. Open the hood.
2. Check the horizontal adjustment indicator.
The "0" mark on the horizontal indicator gear
should be aligned with the mark on the horizontal
indicator.
HORIZONTAL INDICATOR
Check the vertical adjustment indicator. The bubble
should be centered underneath the longest scribe
mark on the gauge.
VERTICAL INDICATOR:
Headlight become very hot in use; do not touch them
or any attaching hardware immediately after they
have been turnsd off.
MARK
23-164
(Bubblol
lf either indicator is not aligned with its "0"mark as
described left column, an adjustment can be made
by using a Phillips screwdriver.
Adjust the headlights to local requirements by turn-
ing the adjusters.
After headlight replacement, it may bs necessary to
readjust the horizontal indicator gear.
. First install the headlioht, and adjust its horizon-
tal and vertical aimings according to local re-
quirements.
. Then check that the arrow on the horizontal indi-
cator gear is aligned with the mark on the hori-
zontal indicator.- lf they are not aligned, remove the screw,
adiust the indicator gear, and retighten the
screw.
NOTE: As the outer lenses are made ot an acryli-
coated, polycarbonated material, do not cover the
headlights when they are turned on.

'99 - 00 models
1. Clean the outer lens so that you can see the center
of the headlights (A).
l,-
2. Park the vehicle in front of a wall or a screen (A).
A
4.
Open the hood.
Turn the horizontal adjuster so that the arrow on
the horizontal indicator gear (A) is pointing up.
7.5 m (25 ft)

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

Turn SignallHazard Flasher System
1.
Turn Signal/Hazard Relay Input Test
SRS components are located in this area. Review the
SRS component locations, precautions, and procedures
in the SRS section {24} before performing repairs or ser-
vice.
Remove the turn signal/hazard relay from the under-
dash fuse/relay box.
Inspect the relay and fuse/relay box 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 fuse/relay box socket.- lf any test indicates a problem, find and cor-
rect the cause, then recheck the system.- lf all the input tests prove OK, the turn signal/
hazard relay must be faulty; replace it.
Test: Desired results
FUSE/RELAY BOXSOCKET
Possible cause it result is not obtainedCavityTest condition
8Bffii
\_t-E rl.]l
| - lll
n'rl
,.ff T-'t:
Hazard warning switch
ON; connect the No. 1
terminal to the No.3
rermtnat.
Hazard lights should come on.Poor ground \G201, G202, G401,
G402, Gs51, G552, G601, G761)
Faulty hazard warning switch
An open in the wire
lgnition switch ON (ll) and
turn signal switch in right
or left; connect the No. 1
terminal to the No. 3
terminal.
Right or left turn signal lights should
come on.
. Faulty turn signal switch
2Under allconditionsCheck for continuity to ground:
There should be continuity.
. Poor ground (G401, G402). An open in the wire
3
lgnition switch ON (ll)Connect for voltage to ground:
There should be battery voltage.
Blown No. '12 (7.5 A) fuse in the
under-dash fuse/relay box
Faulty hazard warning switch
An open in the wire
Hazard warning switch ONConnect for voltage to ground:
There should be battery voltage.
Blown No. 53 (10 A) fuse in the under-
hood fuse/relay box
Faulty hazard warning switch
An open in the wire
23-174

Back-up Lights
Circuit Diagram
]GN TIONSWITCH
*HT/BLK +*HT*;L BLKTYEI-"--""\-z-
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fTil"liUiEEs,x','
YEURED
fr
l$*,'l
YEL
l^ .0.,. ,,
rb !'fi+l'
Y(ifi'frr-')
I
tcroseo' n rosrron El
GRNi BLKq-,
UNOER HOOD FUSE/RELAY BOX
23-177

Brake Lights
WNT/GRN
Circuit Diagram
UNDEH HOODFUSEiRELAYBOXBATTERY/-l I No s2 (1sA) |
u/T'\--]-wHrGFNTwfciN_l
tvHORN SYSTEM
INNERTAILL]GHT
GRNMHT
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AE-'ii,t
Yut#l
IBLK
ffi; I
I l,"l
I I''i
Li;
GRN,4fiHT
l**,,,,I P } BRAKE
Y ilT'
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I
IgLK
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I:
flatchbackCoupe/SedanSedan 99 mode
ffi; I
i $*i
iri
Li*'']
GRNMHT
I
A b'rt^t-,
Yllf,ll
IBLK
BLK
I
I
I
G601 r Halchback/Coupe/Sedan
BLK
II
II
I
G601 : Haldbackiooup€/Sedan G761 :G601 :G602 :
+ 21W :Coup€/Sedan18W :HalchbackJ I : Wilh cruise control
23-178