1998 HONDA CIVIC battery

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

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

Brake Lights
WNT/GRN
Circuit Diagram
UNDEH HOODFUSEiRELAYBOXBATTERY/-l I No s2 (1sA) |
u/T'\--]-wHrGFNTwfciN_l
tvHORN SYSTEM
INNERTAILL]GHT
GRNMHT
I
AE-'ii,t
Yut#l
IBLK
ffi; I
I l,"l
I I''i
Li;
GRN,4fiHT
l**,,,,I P } BRAKE
Y ilT'
I
I
I
IgLK
I
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

Controller Input test
NOTEr The control unit is built into the dash lights bright-
ness controller.
'1. Carefully pry the controller out of the dashboard.
2. Disconnect the 3P connector from the controller'
3. Inspect the connector 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 cor-
rect the cause, then recheck the system.
- lf all the input tests prove OK, the controller
must be faulty; replace it
Cavity
Wire side of
lemale termlnals
Test condition Test Desited resultsPossible cause if rgsult is not obtainGd
1RE D/B LK
Combination light
switch ON
Check for voltage to ground:
There should be battery voltage.
Blown No.30 (7.5 A) fuse in the
under-dash Iuse/relay box
Faulty combination light switch
An open in the wire
2BLKUnder all conditionsCheck for continuity to ground:
There should be continuity.
. Poor ground (G401, G402)
. An open in the wire
RED
Combination light
switch ON
Connect to ground:
Dash Iights should come on full
bright.
. An open in the wire
23-181

Circuit Diagram: '96 - 97 models
HORNRELAY
WHT/GRN
I(H)HoRN
Y
IBLU/REO
I
I
IBtK
I
t-l
G40lG1A2
BATTERY
l-
23-197
Horn Test: '96 - 97 models
1. Remove the front bumper (see section 20).
2. Disconnect the 2P connector from the horn.
Remove the horn.
Test the horn by connecting battery power to one
terminal and grounding the other, lf the horn fails to
sound, replace it.
3.
LOW HORN

Horn
Circuit Diagram: '98 - 00 models
HCRI]tEtA'a
BATTEFY
1 '98 model: WHT/GRN'99 - 00 modelsr BLU/RED
23494
Horn Test: '98 - 00 models
'1. Remove the f.ont bumper (see section 20).
2. Disconnect the 1P connector from the horn.
TERMINAL
Test the horn by connecting
termina I and grounding the
horn fails to sound, replace it.
battery power to the
mou nting bolt. lf the

Switch Test
lMake sure you have the anti-theft code for the
radio, then write down the frequencies for the
radio's preset buttons ('99 - 00 models).
Disconnect the battery negative cable, then disconnect
the positive cable, and wait at least three minutes.
Disconnect the driver's airbag connector (see sec-
tion 24).
Remove the driver's dashboard lower cover (see
section 20).
Disconnect the cable reel sub-harness 3P connector
from the main wire harness.
2.
3.
4.
5.
1.
MAIN WIREHARNESS3P CONNECTOR
SUB-HABNESS3P CONNECTOR
REEL
6.
Terminalside olmale terminals
Check for continuity between the No. 2 terminal of
the cable reel sub-harness and body ground with
the horn switch pressed.
alf there is continuity, the horn switch is OK.
lf there is no continuity, go to step 6l-
-\
1.
8.
10.
'I 1.
9.
Remove the driver's airbag assembly (see section
24), then disconnect the horn connector from the
steering wheel.
Check for continuity between the No. 2 terminal of
the cable reel sub-harness 3P connector and horn
positive terminal.
lf there is no continuity, replace the cable reel
(see section 24).
lf there is continuity, repair or replace the horn
swtlcn,
lf all tests prove OK, reinstall the driver's airbag
assembly (see section 24), and reconnect the cable
reel sub-harness connector.
Reconnect the driver's airbag connector, and rein-
stall the access panel on the steering wheel.
Reconnect the battery positive cable, then the negative
termtnar.
After installing the airbag assembly, confirm proper
system operation:
12.
Turn the ignition switch ON (ll); the SRS indica-
tor light should come on for about six seconds
and then go off.
Make sure both horn buttons work.
13. Enter the anti-theft code for the radio, then enter the
customer's radio station presets ('99 - 00 models).
HORN CONNECTOR
23-199

Rear Window Defogger
Function Test
CAUTION: Bs careful nol to scralch or damage the defog-
ger wires with the tester probe,
'1. Check for voltage between the positive terminal and
body ground with the ignition switch and defogger
switch ON.
There should be banery voltage.
. lf there is no voltage, check for:- faulty defogger relay.- faulty defogger switch.
an ooen in the BLK,/BLU wire.
. lf there is battery voltage, go to step 2.
POSITIVE TERMINAL
2. Check for continuity between the negative terminal
and body ground.
lf there is no continuity, check for an open in the
defogger ground wire.
Touch the voltmeter positive probe to the halfway
point of each defogger wire, and the negative probe
to the negative terminal.
There should be approximately 6 V with the ignition
switch and the defogger switch ON.
. lf the voltage is as specified. the defogger wire is
oK.
. lf thevoltage is not as specified, repairthe defog-
ger wrre.- lf it is more than 6 V, there is
negative half of the wire.- lf it is less than 6 V, there is
positive half of the wire.
a break in the
a break in the
23-204
OPEN
?
Defogger Wire Repair
NOTE: To make an effective repair, the broken section
must be no longer than one inch.
1, Lightly rub the area around the broken section with
fine steel wool, then clean it with alcohol.
2. Carefully mask above and below the broken portion
of the defogger wire with cellophane tape.
CELLOPHANETAPE
Using a small brush, apply a heavy coat of silver
conductive paint extending about 1/8" on both
sides of the break. Allow 30 minutes to dry.
NOTE: Thoroughly mix the paint before use.
Check for continuity in the repaired wire.
Apply a second coat of paint in the same way. Let it
dry three hours before removing the tape.