1999 HONDA CIVIC fuse

How To Use This Manual
Troubleshooting Tests
Testing for Voltage Drop
Wires, connectors, and switches are designed
to conduct current wilh a minimum loss of
voltage. A voltage drop of more than one volt
indicates a Droblem.
'1. Place the digital volVohmmeter (DVOM) in
the appropriate DC volts range. Connect
the positive lead to the end of the wire
(or to the connector or switch) closest to
the bafterv.
Connect the negative lead to the other
end of the wire (or the other side of the
connector or switch).
Turn on the components in the circuit.
The DVOM will show the difference
in voltage between the two points. A
difference, or drop, of more than one
volt indicates a oroblem. Check the
circuit for loose, dirty, or bent terminals.
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Testing lor a Short with a Test Light or DVOM
1. Remove the blown fuse and disconnect
the load.
2. Connect a test light or digital
oltr'ohmmeter
(DVOM), switched to the appropnare DC
volts range, across the tuse lerminals to
make sure voltage is present. You might
have to turn the ignition switch to ON:
check the schematic to see.
<-s80RT TOGFOUNO
Disconnecl lheload here.
Beginning near the luse box, wiggle the
harness. Continue this at convenient ooints
about six inches apart while watching the
test light or DVOM.
Where the test light goes off, or the DVOM
voltage drops to zero, there is a short to
ground in the wiring near that point.
NOTE: Always use a DVOM on high
impedance circuits. A test light may not
glow (even with battery voltage present).
3''
ffito.'"o'o
.t.
TEST LIGHTolDVOM

Testing for a Short with a Sell-Powered
Test Light or DVOM
1. Remove the blown fuse and disconnect
the battery and load.
2. Connect one lead of a self-powered test
light or digital volUohmmeter (DVOM)
(switched to the lowest "OHMS" range) to
the fuse terminal on the load side.
Dlsconnect the batlery.
FUSEBOXRemove the fuse.
<- ssoRr rociouNo
Dlsconnect theload here.
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r| SOLENOID
Connect the other lead to a known
good ground.
Beginning near the fuse box, wiggle the
harness. Continue this at convenient
points about six inches apart while
watching the test light or DVOM.
lf the self-powered test light goes on or
the DVOM displays a low reading or no
reading (zero), there is a short to ground
in the wiring near that Point.
SELF.POWEREDTEST LIGHTo1DVOM
4.
5.
Testing tor a Short with a Short Circuit
Locator (Short Finder)
1 . Remove the blown fuse. Leave the
battery connected.
2. Connect the short finder across the battery
terminals and the load (component) side of
the fuse terminal.
SATTERY
SHORTFINOER
FUSEBOX
PULSINGMAGNETICFIELD \
NOPUISING
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rlll<
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...unilltheneedle slopsmoving.SHOFTTGFOUNO'llt
No --tPULS|NG z
MAGNETTC IFIELD ISoLENOTO
3. Close all switches in the circuil
you're testing. (co,f,O
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How To Use This Manual
Troubleshooting Tests (cont'd)
4. Turn on the short finder. This creates a
pulsing magnetic field around the wiring
between the fuse box and the short.
5. Beginning at the fuse box, slowly move
the short finder along the circuit wiring.
The meter will show current Dulses
through sheet metal and body trim. As
long as the meter is between the fuse and
lhe short, the needle will move with each
current pulse. Once you move the meter
past the point of the short, the needle will
stop moving. Check the wiring and
connectors in this area to locate the cause
of the short.
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Fuse/Relay Information
- Under-dash Fuse/Relay Box
Front View
c712(To moonroof wire harness)
. : Canadai : Not UsedO : C926 loprion (+B)l
@ : C927 loption (dash lights)]
O : C928 [Option (ACC]I
@ : C929 loption (lc2)l
Rear View
css2
c421(To main wire harness)
c801CI-o SRS main harness)
c501(To dashboard wire harness)
^ : Not used ('96-'97 models)
c913(To ignition switch)
INTEGRATEDCONTROL UNITCONNECTOR A
c419Oo main wire harness)
REAR WINDOWDEFOGGER RELAY
TURN SIGNAUHAZARD RELAY
c423(To main wire harness)
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c422(To main wire harness)
POWERwtNDowRELAY
c551flo lloor wire harness)c439 f96.'97 MODELSand ALL GX MOOELS)(To main wire harness)
T1 T-t T"l T"t r-r r-'l T1 F n r-l r-l r'123 24 25 26 27 28 29 30 31 32 33I-J I.J I.J IJ IJ IJ LJ IJ IJ I.J I.J I-I
r"1 r-t r-t T-l r"l r-r Fl r:1 n rJ n -12 13 14 t5 16 17 t8 19 2A 2t 22LI I.J L! LI tJ LJ (J LI IJ IJ T-I I.J
n r:l rj.l |-l T"l Tl r:t n r-l |;.l r-r r-l1 2 3 4 5 6 7 I 9 10 11LI LI IJ LJ LJ I,J T-I I.J TJ IJ I.-I tJ
c420(To main wire harness)
6
(To floor wire harness)

Fuse
NumberAmpsPageFuse Name
(RR WIPER
RR WASHER)
i R HiL HIGH BEAM | 10
L H/L HIGH BEAM
| (PAIV RR-L)
i (P/vv RR-R)
(rGN CO|L)
10I (P,^/V AS)
Component or Circuit Protected
Not used
Not used
Rear wiper, Security system (option)
(Vehicles pre-wired for accessory security system)
'10r 1n-2
I
| 1 10-12i Right headlight, DRL control unit (Canada)
Lett headlight, DRL control unit (Canada)
I ro-rsSecurity system (option)
| 120-2 | Left rear window motor
Right rear window motor
lgnition coil ('98-'00 models except GX)
| 120-1 | Front passenger's window motor
i (PiW DH)| 20 1 12O I Driver's window motor
TURN LIGHTSHazard warning switch
FUEL PUMP
(SRS UNIT)
PGM-FI main relav, SRS unit
(cRUrsE CoNTROL)
/KtrVt trSS\
Stereo radio tuner ('96-'98 USA: LX, EX, and HX),
Cruise control main switch, Keyless door lock
control unit ('99-'00 models with keyless entry)
15ALTERNATOR
SP SENSOR
l-a10-4I ELD unit, Gauge assembly, TCM (96-'98 CW, PGM-FI
16I RR DEF RELAY7.510-8I Rear window defogger ('96-'98 models), ABS control
I unit. Power mirror switch ('99-'00 models except GX)
i-HEATER r/C
I RELAY
Power mirrors ('96-98 models and all GX models),
Air delivery, Blower controls, AilC compressor
controls, Fans
I (RUNNING LIGHT
I RELAY)
1 7.5 1
tl
I DRL control unit (Canada)
i BACK-UP LTGHTSi Back-up lights
(RUNNING LIGHT)DRL control unit (Canada)
I R H/L LOW BEAM'10 l11o-12Right headlight
I L H/L LOW BEAM | 101110-12 | Left headlight
(cont'd)
(SRS)SRS unit
6-1

- Under-dash Fuse/Relay Box (cont'd)
Fuse/Relay I nformation
Fuse
NumberFuse NameAmps
(P/W RELAY)
(S/R RELAY)
FR WIPER
FR WASHER
LO
Page
10-7 |
I
Component or Clrcuit Protected
i Power window relay, Moonrool
Front wioer/washer
CIGARETTE
LIGHTER
ACC SOCKET
10-7Accessory power socket
I RAD|O CLOCK
I
110 115)l
tl
1O-7 |
I
Stereo radio tuner ('96198 models), Audio unit ('99100
model)
Not used
i 7.5i 114 iDash & console lights
I srnnrensrorunl | 7.slzl , zt -t , ! eCU-n main retay, PCM/ECM, Integrated controt unit
I ot 21-2 t
I LICENSE LIGHTS I 7.5
I rerr uesls I
Parking lights, License plate lights, Tail lights| 1oo-1 |
tl
| (f NTERLOCK UNIT) | 7.5 | 10-12 I Interlock system
* = '98 models
6-2

- Under-hood ABS Fuse/Relay Box
Fuse
Number
(To underhood ABS fuse/relay box w re harness)
ABS pump motor
| 10-14 I ABS control unit
i ABS control unit
component or circuit ProiectedFuse Name
PUMP MOTOR
I ABS +B
ABS PUMPMOTOR RELAY(To main wire harness)
(To rnain wlre harness)
I!,ITR CHECK
6.3

Fuse/Relay Information lcont'd)
- Under-hood Fuse/Relay Box
Front View
T'102(To engine wire harness)
LO
T1Oo starter cables)
*: Not Used
Rear View
c353To main wire harness
DE
tr
tr
tr
t-l
IJ
n
tJ
t-l51
IJ
n
IJ
n5T
IJ
[[o main wire harness)
6-4
ffo main wire harness)fto main wire harness)