2002 HONDA CIVIC fuse

Gauges
2.
3.
Gauge Assembly Replacement
1.Remove the instrument panel (see page 20-59),
then remove the upper column cover {see page 17-
Place a clean shop towel (A) under the gauge
assembly to prevent scratching the steering
colum n or dash panel.
Remove the screws from the gauge assembly (B).
Disconnect the connectors (C), and remove thegauge assemDry.
Installthe gauge assembly in the reverse order of
removal.
Coolant Temperature Gauge
Troubleshooting
Before testing, check the No. I { 10A) fuse in the under-
hood fuse/relay box and the No. '10 (7.5A) fuse in the
under dash fuse/relay box.
1. Start the engine, and check the malfunction
indicator lamp (MlL).
Does the MIL come on?
YES- Troubleshoot the cause of the ECM DTC (see
page 1 1-57), and recheck.
NO-Go to step 2.
2. Check for a multiplex control unit DTC (see page
22,168).
ls a DTC ind icated?
YES Troubleshooting the cause of the multiplex
control unit DTC {see page 22-168), and recheck.
NO Go to step 3.
3. Do the communication line check with the self-
diagnosis procedure (see page 22-56).
ls the word "Error" indicated on the odo/ttip
d isplay ?
YES The gauge cannot receive the signal from the
multiplex control unit and the ECI\,4. Check for an
open in the WHT/GRN wire (gauge connector
terminal B 13). lf no open is found, go to step 5.
NO Go to step 4.
4. Do the gauge drive circuit check with the self-
diagnosis procedure (see page 22-56).
Does the temperature gauge needle sweep lrom
the minimum position to the maximum, then tetutn
to the minimum position?
YES Go to step 5.
NO Replace the gauge assembly.l
5. Substitute a known-good ECM and recheck.
Did the symptom/ ind ication go away?
YES Replace the ECM.
NO Substitute a known good gauge assembly. lf
the symptom/indication goes away, replace thegauge assembly.l
4.
22-64

IVehicle Speed Signal Circuit Troubleshooting
Special Tools Required:
Test Harness 07LAJ-PT3020A
Before testing, inspect the No. 4 (10A) and No. 10 (7.5A)
fuses in the under-dash fuse/relay box.
1. Disconnect the 3P connector from the vehicle
speed sensor (VSS) {A).
Connect the test harness only to the engine wire
harness.
Connect the RED test harness clip (B) to the positive
probe of an ohmmeter. Cover the white (C) and
green {D) test harness leads with protective tape (E).
Check for continuity between the RED test harness
clip and body ground,
ls there continuity?
YES Go to step 5.
NO Repair open in the BLK wire between the VSS
and G 101.I
3.
4.
5. Connect the WHT test harness cliD (B) to the
positive probe of a voltmeter, and connect the RED
test harness clip (C) to the negative probe.
Turn the ignition switch ON (ll).
le thara h2ltarv v^ltada?
YES-Go to step 7.
NO Repair open in the BLK,/YEL wire between the
VSS and the under-dash fuse/relay box.l
Disconnect the WHT test harness clip (B).
Connect the GRN test harness clip {D) to the
positive probe of a voltmeter.
Is there 5 V or more?
YES- Go to step 9.
NO Repair short or open in the BLUMHT or WHT/
GRN wire between the VSS and the cruise control
unit, or the ECM.I
(cont'd)
7.
8.
22-65

Exterior Lights
Gomponent Location Index
UNDER.HOODFUSE/RELAY BOX
\/
HEADLIGHTSReplacement, page 22 79Adjustment. page 22-78Eulb Replacement, page 22-81
HEADLIGHT RELAY 1Test, page 22-51
HEADLIGHT RELAY 2Test, page 22-5'l
0/
FRONT SIDE MARKER LIGHTBulb Replacement, page 22 83
BRAKE PEDAL POSITIONswtTcHTest, page 22-84Adjustment, page l9'6
SIDE TURN SIGNAL LIGHTReplacement, page 22-84
FRONT TURN SIGNALLIGHTBulb Beplacement, page 22 81
PARKING LIGHTBulb Replacement, page 22-81
22-68

Exterior Lights
Component Location Index (cont'dl!
DAYTIME RUNNING LIGHTS RELAY {Canadal[Wire colors: RED, REDryEL, ILRED/BLK and RED/BLU ITest, page 22-51
_LOW BEAM CUTRELAY {Canadal _Wire colorsr REDMHT, RED/BLK, ILREDryEL and RED/BLU ITest, page 22-51
DASH LIGHTS BRIGHTNESSCONTROLLER
/
COMBINATION LIGHT SWITCHTesVReplacement, page 22-80
oAYTIME RUNNING LIGHTS CONTROL UNIT lcanada)Input Test, page 22-76
DRL INDICATOR LIGHT {Canadal
HIGH BEAM INDICATOR LIGHTBulb Replacement, page 22-63
UNDER.DASH FUSE/RELAY BOX
:' --,': - '
' i,-'-'l
..i \
I t- -
22-70

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
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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-
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uctrrscournoLu,'r"
J l
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SYSIIM UGHI
VYIGNfl/FEO GRI\
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/NED
II
I
f'r 88A(EI FiUrD2 , LTVEL[./ SWITCH
I
'nddoM
I
i
||MoS|UZEnCONTNOLUNIT RECEIVEB
17
YI
3
BI( BIBIG8N
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i
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22-72

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

4. Make these input tests at the connector,
.lfanytestindicatesaproblem,findandcorrectthecause,thenrecheckthesystem.
. lf all the input tests prove OK, the control unit must be faulty. Replace it.
CavityWireTest conditionTest: Desired resultPossible cause if result is not obtained2R E D/BLUUnder all
conditions
Check for voltage to ground:
There should be battery voltage.
Blown No. 14 (40A) fuse in the
under-hood fuse/relay box
Blown No. 3 {10A)fuse in the
under-dash fuse/relay box
An open in the wire12YE L/RE Dlgnition switch
oN (r)Check for voltage to ground:
There should be battery voltage.
Blown No. l2 (7.5A)fuse in the
under-dash fuse/relay box
An open in the wire
BLKUnder all
conditions
Check for continuity to ground:
There should be continuitv.
. Poor ground {G50'1). An oDen in the wire7BLKUnder all
conditions
Check for continuity to ground:
There should be continuitv.
. Poor ground (G501)
' An open in the wire
10REDI/ELCombination
light switch ON/ =f\
Check for voltage to ground:
There should be battery voltage.
Blown No. 15 (15A) fuse in the
under-hood fuse/relay box
Faulty headlight relay 2
Faulty combination light switch
An open in the wire
1RED/B LUCombination
light switch ON
{iD), and
dimmer switch
in HIGH
Connect a jumper wire between
No.3 and No. 1 terminals.
Both headlights (HIGH) and
h igh beam indicator light
should come on.
Blown bulb
Faulty low beam cut relay
Faulty combination light switch
Poor ground (G50'l )
An open in the wire'11
3
RED/BLK
GRN/BLK
Combination
light switch ON(iD), and
dimmer switch
in HIGH
Com bination
light switch ON(iD), and
dimmer switch
in HIGH
Connect a jumper wire between
No. 5 and No. 11 terminals.
Right headlight (HIGH) should
come on.
Check for continulty to ground
There should be continuity.
. Blown bulb. Faulty combination light switch. Poor ground (G 50'1 ). An open in the wire
. Faulty combination light switch. Poor grou nd {G501). An open in the wire
5
6GRN/ORNParking brake
lever oulled
Check for continuity to ground:
There should be continuitv.
Faulty parking brake switch
An open in the wire
8BLU/REDCombination
light switch OFF
Check for voltage to ground:
There should be battery voltage.
Faulty headlight relays
Short to ground
An ooen in the wire
WHT/BLUlgnition switch
oN 0r)
Attach to ground:
The DRL indicator light should
come on.
. Blown No. 10 (7.5A) fuse in the
under-dash fuse/relay box. Faulty DRL indicator. An ooen in the wire
t5G RN/REDlgnition switch
oN (||)Attach to ground:
The brake system light should
come on.
Faulty brake system indicator
An open in the wire
22-77

Turn Signal/Hazard Flasher
Component Location Index
COMBINATION LIGHT/TURN SIGNAL SWITCHTest, page 22-80Beplacement, page 22-80
TURN SIGNAL INDICATOR LIGHTS(ln the gauge assembly)Bulb Replacement, page 22'63
HAZARD WARNING SWITCHTest, page 22-88Replacement, page 22-88
TURN SIGNAL/HAZARD RELAYInput Test, page 22-87
UNDER.DASH FUSE/RELAY BOX
22-85