2003 HONDA CIVIC fuse box diagram

J
a
Gauges
I
No2il5AlFUSEilnlh.undi hooq DASHllu!./rcl.ybox r LGHTS
YY
tltl
Circuit Diagram (cont'dl
ls?2IBLUIYEL
I
J
cSutsEm n0L
'- -t
WASHEFItut0I!VEL6t0tc ToRUGHT(tDl
22-60

J
J
Exterior Lights
tCircuit Diagram - Canada
t
cl.1G501G301
UNOEN HOOO FUSE/8ELAY BOX
No l9l80Al
J
) to.o- i50AlNo.1'lloa)
No.!0(7 SAlr
V
I'l'
I
usE /',d.3hl I EAr
\
BU1
IT WHT
t-\
rc|'/moN. rcz/ swfrcH
v
I G2 Hor in 0N {ll)
IBED
ED RED,I
I'2
I*01
I
fifi li{*1l,.H' I
I
ItU RED/,l
-_l
-- ,'orrro". ) INDICAIOF-/ l'lcli;
BLUl
RE=.|
A DNL) No12i l7.5AlDAYTIMEBUNNINCLIGHTSEfLAY\y
IIHT/BIIn
TIGHTluDl
12REt0t1
--t
lT
,{ oorr,",rr.,ro { r-
I I
uctrrscournoLu,'r"
J l
SLU/BID8
SYSIIM UGHI
VYIGNfl/FEO GRI\
(
!3
/NED
II
I
f'r 88A(EI FiUrD2 , LTVEL[./ SWITCH
I
'nddoM
I
i
||MoS|UZEnCONTNOLUNIT RECEIVEB
17
YI
3
BI( BIBIG8N
F PANKNG; } BNAXE+./ swrTcH
i
J\,
22-72

Exterior Lights
\Circuit Diagram - Brake Lights
UiDEN HOODFUSE/NEUYBOXSATIISYI r!o7l15A) | ,r-T-v--rrni'citr
22-7 4

Entry Light Control System
Jt
'No.20({0A) USA
Circuit Diagram
CEILINGUGHT
Y
I
I
J\
jIGNIlx)NKEYSWtTCH
PASSTNGERSDOOBSWITCHi9r"..d l
ORIVEBSDOORSWITCH
DtrVTN'SDOORLocx(NOBs!t/tTc8
l'BU
I
G()t
lGl HoTin 0N illlnd STAnT 0D
EiIIpNSMTqI
UiIOTf, HOOD fUSE/8ELAY BOX
J
22-90

Accessory Power Socket
Circuit Diagram
22-149
Accessory Power Socket Test/
Replacement
1.
4.
Carefully pry the accessory power socket (A) out
from the center lower cover.
Disconnect the 2P connector (B) from the socket.
Inspect the connector terminals to be sure they are
all making good contact.
. lf the terminals are bent, loose orcorroded,
repairthem as necessary, and recheck the
system.. lf the terminals look OK, go to step 4.
Turn the ignition switch ACC (l), and check for
voltage between the No. 'l and No. 2 terminals.
. There should be battery voltage.. lf there is no banery voltage, checkfor:- poor ground {G502).- an open in the wire.- blown No. 18 (15A)fuse in the under-dash
fuse/relay box.

J\Circuit Diagram
UNOEE DASHfUSE/SELAYBOXUiDEN HooD FUSE/RETIY 8OX
UI'IDE8 DASH f USE/RETAY 80X
/ 8Ar \-) cl- lG1 ,/
lG1 HoT in 0N (lllaidSTAfft(llll
JI
000RLoc( KNOE
tl
xtY \"2
t'-F>Li___J-
(cont'd)
22-151
l3
IT
IBLK
I
G502
MULTIPUX CONTNo! Uflfi
PASSTNGtrS0008100(ACTUATOi
DBt!'t8'S000R 100(ACTUATOB
t

ICircuit Diagram
' I'10.20 {a0AJ :usAib.a)l50A) :C.nd.IGNITiON SWITCH
/ BAI \--_to oJ- BLI,'YEL tcl ./
J
G201
HAICIILATCHSWITCH
{cont'd)
UiIDM HOOD IUSE/NEUY BOX
MULTIPLEXc0NT80rtNsPECTror!CONNECIOF
UNDEf, DASHFUSE/NEUYBOX
22-169

Service Manual lndex
)s
NOTE: Referto the lollowing listto look up A/C Pressure Switch CircuitDTCS, symptoms, fuses, connectors, wire Troubleshooting ......... ...-.-....-...-.-.-....-..21-32 Bharnesses, specifications, maintenanceschedules, and general serviceinlormation:
DTC Troubleshooting Indexes
A/C Signal CircuitTroubleshooting.........................-...... 11-'133 Back-up Light SwitchTest .......................................................... 13'3A/F lAir Fuel Ratiol SensorABS/TCS Components ........................ 19-34 Replacement ....................................... 1 1-113 Back-up Li9ht3EPS Components ................................. '17-22 Circuit DiagramFueland Emissions11-i A-Dillar Corner Trim
ABS Indicator Circuit
Heating/Ventilation ................................ 21-9 Replacement ...............-.....-..............-.... 20,96 Ball Joint BootssRS ........................................................ 23-28Replacement ......
... 19-52 Ball Joints
22-75
18 16
Remova1.............-.......... . ...........18-10Symptom Troubleshooting Indexes TroubleshootingABS/TCSComponents........................ 19 35Cruise Control System ..........................4 38 ABS Modulator-contml UnitEPS Components ................................. 17-23 Bemoval/lnstallation ............................ 19-57 BettervFan Controls10,12
Accessory Powor Socket Front
Blowor Pow€r Transistor
.......22 50
Blower UnitRemoval/lnstallation ............................ 21-39
Fuel and Em issions .............................. 11-10 ABS/TCS ComoonentsHeating/Ventilation..............................21 10 Component Location Index ................. 19-30 Beverage Holder
SRS ........................................................ 23'30 CircuitDiaqram.......................... 19'42Blower MotorReplacement .....21 41
21-38
Power 0istribution ...............................22-46 TesVReplacement .............................. 22'149Under-dash Fuse/Relay Box ............... 22 45Under-hood Fuse/Belay Box ...............22 44 Accessory Power Sockets
Fuse/Relay lndexes
(to harness)
Connector and Wire Harness lndexesComponent Connectors
Circuit Oiagram .................................. 22-149
Air Cleaner......2214 Rep1acemen1.....................................11-162
Air MixControl MotorMeintenence section .................... Section 3 Replacement ......................................... 21'34 Brake CelipersTest......................21-34 Overhaul19-14,23Gene.al lnlormation section........ Section 1
21.57
Airbag. Driver's
Ahernator FR Signal CircuitTroubleshooting .... .........-..........11 134
AntennaReplacement
Inspection ............................................. 19-24Rep|acement................. .................... 19-25
Bieke Meder Cylinder
Irake Discs
A
Replacement ....................................... 23 1 'l3 Inspection .................... ................... 19-13,22Repair ...........-...................................... 23 1 16Brake Fluid Level SwitchAirbag. Front Passenger's TestBeplacement....................................... 23-1 14AIC Brake LightsComponent Location fndex ...................21-3 Altemator CircuitDiagram....................................22-74Description.....................................-....21'1'l Beplacement ................ ........................... 4 29CircuitDiagram....................................21-14 Overhaul .................................................4-30 Brake Lines and Hoses
19.10
A/C CompressolReplacement .......-...-............................. 21 -41
A/C Compr€ssor ClulchRep1acement......................................... 19-15.........22-103 Inspection ............................................. 19-16Inspecton........Overhaul ..........
A/C CondenserReplacement,.,
21-442l-49 Audio Unit
Replacement
Brake PadsRemoval/lnstallation .. ........................22-100 Inspection/Rep1acement................ 19-11,20A/C Compressor Clutch CircuitTroubleshooting ................................... 21-30 Audio Unit Connector Brake Pedal22101 Adjustment..............19,6ArfC Comoressor Relief ValvcReplacement ..........-...-.......................... 21-51 Audio/Entertainment
A/C Compr$sor Thermal Protector Circuit DiagramReplacement............-............................ 21-51
Component Location In dex .................22-9A Test .......-.............. 22-84Breke Pedal Posilion Switch
Brake Pedal Position Switch Signal Clrcuit11-137
.....21 52
A/C Condenser Fan CircuitTroubleshooting ................... . . . . . .....21-28
)s
Troubleshooting
(cont'd)