1998 HONDA CIVIC Light bulb

License Plate Lights
Replacement
'96 - 98 Sedan/Coupe:
L Remove the two screws from the license plate light,
and pull the light out pan ot the way.
2. Disconnect the 2P connector trom the light.
3. Take the lens off, then replace the bulb.
Hatchback/'gg - 00 Sedan:
1. Carefully pry the licence plate light out of the license
plate tnm.
2. Disconnect the 2P connector from the light.
2P CONNECTOR
2P CONNECTOR
23-176

High Mount Brake Light Replacement
Hatchback:
1. Loosen the two screws, then remove the high
mount brake light. Be careful not to damage the
hatch spoiler.
2. Remove the bulb socket from the light.
BULB SOCKET
l-
23-179
Coupe/sedan:
1. Remove the rear shelf (see section 20).
2 Remove the two screws, then remove the high
mount brake light from the rear shelf.
HIGH MOUNTBRAKE LIGHT
SCREWS

Ceiling Light Test
1. Turn the light switch OFF
2. Pry off the lens.
3. Remove the two mounting nuts (or a bolt) from the
housing, then remove the housing.
4. Disconnect the connector{s) from the housing.
5. Check for continuity between the terminals in each
switch position according to the table.
With moonroof:
3P CONNECTOR
rermrnal
Position \
12or2'
3or3'
OFFo-/a\-o\7
MIDDLEo-,.\--o\:/
ONo---o\:/
23-185
q,
Without moonroot:
Coupe/Hatchback:
BULB (5 WI
/
2'
4
1
3

Interior Lights
Spotlights Test
1. Turn the spotlight switch OFF.
2. Pry off the lens.
3. Remove the two screws and the housing.
4. Disconnect the 1P connector from the housing.
5. Check for continuity between the terminals in each
switch position according to the table.
Terminal
t*'*-__\234
OFFo-{e,
//:\
--o
--o\:,/
ONo--*i@
/a\
-_o
--o\:.,/
23-186
Trunk Light Test
1. Open the trunk light cover from the housing.
2. Pry out the light assembly.
3. Disconnect the 2P connector from the housing,
4. Make sure that the bulb is OK. Check for continuitybetween the No. 1 (+) and No.2 (-) terminals.
EULB {.')
*1 3.4 W: USA, Canada-oroduced5 W: Japan-produced

)
CavityWireTest conditionTest: Desired resultPossible cause if result is not obtained
BRNA/VHTUnder all conditionsCheck for resistance to ground:
There should be 80 - 120 O.
Fau lty actuator solenoid
Poor ground (G202)
An open in the wire
1BRNUnder all conditionsCheck for resistance to ground:
There should be 40 - 60 0.
11BRN/BLKUnder all conditionsCheck for resistance to ground:
There should be 70 - 110 0.
2GRY
lgn jtion switch ON (ll),
main switch ON and
brake pedal pushed,
then released
Check for voltage to ground:
There should be 0 V with the Pedal
pushed and battery voltage with
the pedal released.
'Faulty brake switch
. An open In the wlre
3BLKU nderall conditionsCheck for continuitY to groundl
There should be continuity
' Poor ground (G401, G402)
. An open in the wire
5GRNA,A/HT
Brake pedal pushed,
then released
Check for voltage to groundl
There should be batterY voltage
with the Pedal Pushed. and 0 V
with the pedal released
. Blown No. 52 (15 A) fuse in the
under-hood fuse/relaY box
. Faulty brake switch. An open in the wire
LT GRN/
RED
Set button pushedCheck for voltage to ground:
There should be batterY voltage.
Blown No. 52 (15 A) fuse in the
under-hood fuse/relaY box
Faulty horn relay
Faulty sevresume switch
Faulty cable reel
An open in the wire7LT GRN/
BLK
Resume button Pushed
10RED/BLU
lgnition switch ON (ll)Attach to ground:
Cruise indicator light in the gauge
assembly should come on.
Blown bulb
Blown No. 25 (7.5 A) fuse in the
under dash fuse/relay box
Faulty dimming circuit in the
gauge assemDly
An open in the wire
BLU,A/VHT
lgnition switch ON (ll)
and main swilch ON;
raise the front of the
car, and rotate one
wheel slowly with the
other wheel blocked.
Check for voltage between the
BLUMHT @ and BLK O terminals:
There should be 0- 5 V or more
-0- 5 V or more repeatedlY
. Faulty vehicle speed sensor {VSS)
. An open in the wire
LT GRN
lgnition switch ON (ll)
and main switch ON
Check for voltage to ground:
There should be batterY voltage.
Blown No. 14 (7.5 A)fuse in the
under-dash luse/relaY box
Faulty main switch
An open in the wire
14PNK
A,T: Shift lever in E,
ojorE
M/T: Clutch pedal
released
Check for continuity to ground:
There should be continuity.
NOTE: There should be no conti-
nuity when the clutch Pedal is
depressed or when the shift lever
is in other positions.
Faulty A/f gear position switch
Faulty or misadjusted clutch
switch (M/T)
Poor ground (G401, G402)
An open in the wire
BLU/GRN
Under all conditionsCheck for continuity between No. I
terminal and No. 5 terminal of the
PCM connector A.
There should be continuity
. An open in the wire
*: '99 - 00 models with A,/Tl-,
23-243

)
l-l
Disconnect the A and B connectors from the audio unit.
Cavity WireTest conditionTest: Desired resultPossible cause if result is not obtained
Reconnect the B connector only to the audio unit.
Cavity WireTest conditionTest: Desired resultPossible cause iI result is not obtained
B9GRN/ORN
Driver's door lock
switch in UNLOCK
Check for voltage to ground:
There should be 1 V or less.
. Poor ground 1G551). Faulty driver's door lock switch. An open in the wire. Short in the wireDriver's door lock
switch in LOCK
Check for voltage to grou nd:
There should be 4 V or more.
810G R NAr'r'HT
Driver's door lock
switch in UNLOCK
Check for voltage to ground:
There should be 4 V or more.
. Poor ground (G551)
. Faulty driver's door lock switch. An open in the wire. Shon in the wireDriver's door lock
switch in LOCK
Check lor voltage to ground:
There should be I V or less.
23-263
A4WHT/BLU
LJnder all conditionsCheck {or voltage to ground:
There should be battery voltage.
. Blown No. 47 (7.5 A) tuse in the
under hood fuse,i relay box. An open n the w re
A5YEL/RED
lg nition swirch ACC (l)Check for voltage to ground:
There should be battery voltage.
Blown No. 28 , I0 A) f use in the
under dash fuse.elay box
An open " :ne n re
Check for voltage to ground:
There should be battery voltage.
Check for continuity to groundr
There should be continuity.
B o$. \. '.1 - 5 A' iuse n the
,,^oe' aas_'-se relay box
A_ ooe^ ' :ne wrre
Pc.' E'o--d rG401, G402)
A- ooen n lhe wire
B6B LK,/YE L
lgnition switch ON0l)
8158LK
Under all conditions
B1BLU/RED
lgnition key inserted
into the ignition key
swrtch
Check for voltage to ground:
There should be 1 V or less
Check for voltage to ground:
There should be 4 V or more
Poor ground (G401, G402)
Faulty ignition key switch
An open in the wire
Short in the wire
An open in the wireCheck for continuity berwee. lFe
audio unit 16P connector l-o 3ler-
minal and power door lock control
unit 12P connector No. 6 lermrnal:
There should be continu ty
lgnition key removed
from the ig nition key
swtlcn
B3B LUlt/E L
U nderall conditions
B8LT GRN/
BLK
Ceiling light switch in"middle position"
Connect to ground:
The ceiling lighr shouldcome on.
Blown No.43 (7.5 A) fuse in the
under-hood Iuse/relay box
Blown ceiling light bulb
Fau lty ceiling light
An open in the wire
814LT GRN/
RED
Each door open, one at
a time
Check tor voltage to ground:
There should be'l V or less.
. Faulty door switch. An open in the wire
Br6GRY
U nderall conditionsConnect to groundl
Horn should sound.
. Blown No. 52 ('15 A) fuse in the
under-hood fuse/relay box
. Fau lty horn. Faulty horn relay. An open in the wire

Troubleshooting
The SRS Indicator Light Doesn't Come On
CAUTION: Whonever ths ignition switch is ON {ll}, or
has been turned OFF tor less than three minutes. be
careful not to bump the SRS unit; the airbagls) could
accidentally deploy .nd caus6 damage or iniuri€s.
Check tho pow€r supply (fuse):
Turn the ignition switch ON (ll), and check whether the otherindicator lights come on (brake system, etc.).
Oo the other indicator liohts como on?
YESNO
Check th6 fuso:Check the No. 25 {7.5 A) fuse in the under-dash tuse/relayb"t
ls th6 tu36 OK?
NOYES
Check the bulb:Replace the No. 25 (7.5 A) fuse, and check that theSRS indicator light comes on.
Doos the SRS indicator liqhl come on7
I YES No
END
Check tho wire harns b€twecn fus6 and gauge aasambly:Check for an open in the wire harness between luseNo. 25 {7.5 A) and the gauge assembly, and repair. Checkthat the SRS indicator light comes on.
Doo. tho SRS indic.tor light como on?
I yEs No
I
END
Check tho SRS indicator light bulb:1. Turn the ignition switch OFF.2. Remove the gauge assembly.3. Check for blown SRS indicator light butb.
ls the SRS indicator light bulb OK?
NOYES
Ch.ck the SnS indicator liglrt circuit:Replace the bulb, and reconnect the gauge assemblyconnectors. Then turn the ignition switch ON {ll}.
Ooes th6 SRS indicato. llght come on?
I YEs No
:ND
lAl To page 24-27
24-26
lB'J fo page 24-27
))
No. 25 (7.5 Al FUSE

Five-Step Troubleshooting
L Verify The Complaint
Turn on all the components in the problem
circuil lo check the accuracy of the customer
complaint. Note the symptoms. Do not begin
disassembly or testing until you have
narrowed down the problem area.
2. Analyze The Schematic
Look up the schematic for the problem
circuit. Determine how the circuit is
supposed to work by tracing the current
paths lrom the power source through the
circuit components to ground. Also, trace
circuits that share wiring with the problem
circuit. The names of circuits that share the
same fuse, ground, or switch, and so on, are
referred to in each circuit schematic. Try to
operate any shared circuits you didn't check
in step 1 . lt the shared circuits work, the
shared wiring is OK, and the cause must be
in the wiring used only by the problem
circuit. lf several circuits fail at the same
time, the fuse or ground is a likely cause.
Based on the symptoms and your
understanding of the circuit's operation,
identify one or more possible causes.
3. lsolate The Problem By Testing The Circuit
Make circuit tests to check the diagnosis
you made in step 2. Keep in mind that a
logical, simple procedure is the key to
efficient troubleshooting. Test for the most
likely cause of failure first. Try to make tests
at points that are easily accessible.
4. Fix The Problem
Once the specific problem is identified,
make the repair. Be sure to use proper tools
and safe procedures.
5. Make Sure The Circuit Works
Turn on all components in the repaired
circuit in all modes to make sure you've
fixed the entire problem. ll the problem was
a blown fuse, be sure to test all of the
circuits on that fuse. Make sure no new
problems turn up and the original problem
does not recur.
Test Equipment
Most circuits include solid-state devices.
Test the voltages in these circuits only with
a 1o-megaohm or higher impedance digital
mUltimeter. Never use a test light or analog
meter on circuits that contain solid-state
devices. Damage to the devices may result.
Test Light and DVOM
On circuits without solid-state devices, use a
test light to check for voltage. A test light is
made up of a 12 volt bulb with a pair of leads
attached. After grounding one lead, touch the
other lead to various points along the circuit
where voltage should be present. The bulb
will go on if there is voltage at the point being
tested. lf you need to know how much
voltage is present, use a digital
volVohmmeter (DVOM).
Self-Powered Test Light and DVOM
Use a self-powered test light to check for
continuity. This tool is made up of a light bulb,
battery, and tlvo leads. To test it, touch the
leads together: the light should go on.
Use a self-powered test light only on an
unoowered circuit. First, disconnect the
battery, or remove the fuse that feeds the
circuit you are working on. Select two points
in the circuit belween which you want to
check continuity. Connecl one lead of the
self-powered test light to each point. lf there
is continuity, the test light's circuit will be
completed, and the light will go on.
SELF-POWERED TEST LIGHT
lf, in addition, you need lo know exacW hc'.
much resistance there is between two oo'^=
use a digital volUohmmeter (DVOM)
acdrt'Cn
t1