2003 HONDA CIVIC hood open

Turn Signal/Hazard Relay Input Test
1. Removetheturn signal/hazard relay (A) from the under-dash fuse/relay box (B).
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, repairthem as necessary, and recheckthe system.
. lf the terminals look OK, go to step 3.
Make these input tests at the fuse/relay box.
.lfanvtestindicatesaproblem,findandcorrectthecause,thenrecheckthesystem.
. lf all the inputtests prove OK,theturn signal/hazard relay must befaulty. Replace it
000i 0!1000
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CavitvTesl conditionTest: Desired resultPossible cause il result is not obtained
1Under all conditionsCheck for continuity to ground:
There should be continuiw.
. Poor ground (G201)
. An ooen in the wire
3lgnition switch ON ( ll)
Hazard warning switch
OFF
Check for voltage to ground:
There should be battery voltage.
' Blown No. 19 (7.5A) fuse in the
under-dash fuse/relay box. Faulty hazard warning switch. An ooen in the wire
Hazard warning switch
ON
lgnition switch OFF
Check for voltage to ground:
There should be battery voltage.
. Blown No. 5 {10A) fuse in the
under-hood fuse/relay box. Faulty hazard warning switch. An ooen in the wire
2lgnition switch ON ( ll)
and turn signal switch
in Right or Left position
Connect No. 2 terminalto No. 3
terminal:
Right or left turn signal lights
should come on.
. Poor ground (G201, G301, G501,
G502, G553). Faulty turn signal switch. An oDen in the wire
lgnition switch OFF
Hazard warning switch
ON
Connect No.2 terminal to No. 3
termrnal:
Hazard wa rning lights should
come on.
. Poor ground (G201, G301, G501,
G502, G553). Faulty hazard warning switch. An open in lhe wire
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5. With the connectors stilldisconnected, make these input tests at the connector'
. lf anv test indicates a problem, find and correct the cause, then recheck the system. lf all the inpul tests prove OK, go to step 6.
6.Reconnect the connectors to the under dash fuse/relaV box, and make these input tests at the appropriate connectors on the under-dash
fuse/relay box.
.lfanytestindicatesaproblem,findandcorrectthecause,thenrecheckthesystem..lfalltheinputtestsproveOK,themultiplexcontrolunitmustbefaulty.Replacetheunder'dashfuse/relaYboxassemblY
CavitvWireTest conditionTest: Desired resultPossible cquse il result is not obtained
K28LU/ORNlJnder allconditionsCheck for continuity between the K2terminal and the keyless receiverunit 5P connector No. 2 terminal:There should be continuitv.
An open in the wire
o7GRN/REDCejling light switch inmiddle position.Attach to ground:Ceiling light(s)should come on.Blown No. 3 (7.5A) fuse in the under hood
Blown bulbFaulty ceiling lightAn ooen in the wire
X8WHT/BLKUnder allconditionsAttach to ground:lgnition key light should come on.Elown No.3 (7.5A)fuse in the under hoodfuse/relay boxFaulty ignition key light (LED)
An ooen in the wire
CavitvWireTest conditionTest: Desired resultPosq!!!c sq!!ej1!.9!!!!j €d
P18REDHatch openCheck for voltage to ground:There should be 1 V or less.Poor ground (G552)
Fauhy hatch latch switchAn open inthewire
Hatch closedCheck for voltage to ground:There should be 5 v or more.Faulty hatch latch switchShortto oround
Q3GRNDriver's door openCheck for voltage to ground:There should be 1 V or less.Faulty drlver's door switchAn oDen in the wire
Driver's door closedCheck for voltage to ground:Thar. shoul.l he 5 V or more.Faulty driver's door switch
o4LT GRN/BED
RED^vHT
Passenger's doorCheck for voltage to ground:There should be 1 V or less.
' Faulty passenger's door switch' An onen inthewire
Passenger's doorcroseoCheckfor voltage to ground:There should be 5 Vor more.
. Faulty passenger's door switch. Shor o oround
X5lgnition key insertedinto the ignitionCheck for voltage to ground:There should be 1 V or less.Poor ground (G401)
Faulty ignition key switchAn ooen in the wire
lgnition key removedfrom the ignitionCheck for voltage to ground:There should be 5 V or more.Faulty ignition key switchShort to ground
Y8YEUREDDriver's door lockknob switch lockedCheck for voltage to ground:There should be 1 V or less.Poor ground {G501)Faulty driver's door lock knob switchAn ooen in the wire
Driver's door lockkn6h cwirch Inl6cke.lCheck for voltage to ground:There should be 5 V or more.Faulty driver's door lock knob switchShort to oround
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Rear Window Defogger
Function Test
NOTE:. Be careful not to scratch or damage the defogger
wires with the tester probe.
. Before testing, check the No. 11 (30A) fuse in the
under-hood fuse/relay box and No. '14 ('10A) fuse in
the under-dash fuse/relay box.
1. Check for voltage between the ve rtica I dividersand
body ground with the ignition switch and defogger
switch ON.
There should be voltage as shown.
. lf there is no voltage. checkfor:- faulty defogger relay.- an open in the BLK, BLK,/YEL, or YEL/BLK wire.- taulty heater control panel.
. lf there is battery voltage, goto step 2.
6V
Check for continuity between the negative terminal(B) and body ground.
lf there is no continuity, check for:. an open in the BLK wire.. Poor body ground at the window antenna coil
mounting bolt.
Touch the voltmeter positive probe to the halfway
point of each defogger wire. and the negative
probe to the negative terminal,
There should be about 6 V with the ignition switch
and the defogger switch ON.
. lf thevoltage is asspecified, the defoggerwlre is
oK.. lf the voltage is not as specified, repair the
defogger wire.- lf it is more than 6 V, there is a break in the
negative half of the wire.- lf it is less than 6 V, there is a break in the
positive half of the wire.
2.
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2.
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 (A)
with fine steel wool, then clean it with alcohol.
Carefully mask above and below the broken portion
of the defogger wire (B) with transparent tape {C).
Mix the silver conductive paint thoroughly. Using a
small brush, apply a heavy coat of paint extending
about 1/8 inch on both sides of the break. Allow 30
minutes to dry.
Check for continuity in the repaired wire.
Apply a second coat of paint in the same way. Let it
dry 3 hours before removing the tape.
5.

Horns
1.
3.
Horn Test/Replacement
Remove the front bumper {see page 20-85).
Disconnect the 1P connector (B), and remove thehorn (A).
Test the horn by connecting battery power to the
terminal (A) and ground to the bracket (B). The horn
should sound.
4. lf it fails to sound, replace it.
22-122
1.
Horn Switch Test
Remove the steering column covers (see page '17-
9).
Disconnecl the dashboard wire harness B 5P
connector (A) from the cable reel (B).
Using a jumper wire . connect the dashboard wire
harness B 5P connector (A) No. 2 terminal to bodyground .
. lf the horns sound, goto step 4.. lf the horns do notsound, checkthese items:- Horn relay- No.7 (15A)fuse in the under-hood fuse/relay
box- Horns (see page 22-122).- An open in the wire
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Wiper Motor Test
Windshield:
1. Open the hood, and carefully remove the cap nuts
and the wiper arms. Make sure they do not touch
the hood.
2, Remove the hood seal andcowl cover.
3. Disconnectthe 5P connector (A)from the motor (B).
Test the motor by connecting battery power andground according to the table. lf the motor does not
run or fails to run smoothly, replace it.
P-"-,tion
Terminal124
LOW SPEEDOO
HIGH SPEEDoo
5.Test the wiper motor park switch by connecting an
analog voltmeter between the No, 5 (+)terminal
and ground, and run the motor at low or high speed.
The voltmeter should indicate 12 V and 4 V or less
alternately. lf it does not, replace the motor.
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Rear Window:
1. Open the hatch, and remove the hatch trim panel
(see page 20-53).
2. Disconnectthe 4P connector {A) from the motor {B).
Test the motor by connecting battery power andground according to the table. lf the motor does not
run or fails to run smoothly, replace it.
Telminal
Battery
Connected@o
Test the wiper motor park switch by connecting an
analog voltmeter between the No. 4 (+)terminal
and ground, and run the motor. The voltmeter
should indicate 12 V and 4 V or less alternatelv. lf it
does not, reolace the motor.
4.

Windshield Wiper Motor Replacement
1.Open the hood. Remove the nuts (A) and the
windshield wiper arms (B).
Remove the hood seal and cowl cover.
Djsconnect the 5P connector (A) from the wiper
motor (B).
9.8 N.m (1.0
Remove the bolts (C), move windshield wiper
linkage assembly {D)toward the passenger's side
of the vehicle until it slides off of the pin (E), then
remove the assembly.
5. Scribe a line (A) across the link and wlndshield
wiper linkage to show the original adjustment.
Separate the windshield wiper linkage (B) from the
wiper motor (C).
N.m(3.2 ksf.m, 23 lbt.ft)
Install in the reverse order of removal, and note
lhese items.
Apply multipurpose grease to the moving parts.
Before reinstalling the wiper arms, turn the wiper
switch ON, then OFF to return the wiper shafts tothe oark oosition.
lf necessary, replace any damaged clips,
Check the wioer motor oDeration.
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Keyless/Power Door Lock System
Keyless Receiver Unit Input Test (cont'dl
With the connector still disconnecled, make the input test at the connector.
.lftestindicatesaproblem,findandcorrectthecause,thenrecheckthesystem.
. lf the inputtest proves OK, goto step 6.
Reconnect the 5P connector, and make these input tests at the connector.
.lfanytestindicalesaproblem,findandcorrectthecause,thenrecheckthesystem.
. lf all the inputtests prove OK, replacethe keyless receiver unit.
CavityWireTest conditionTest: Desired resultPossible cause il result is not obtained
2BLU/ORNUnder all
conditions
Check for continuity between
the No.2 terminal and the
No. 2 terminal ofthe
under-dash fuse/relay box
connector K { 17P).
There should be continuitv.
An open in the wire
CavitvWireTest conditionTest: Desired resultPossible cause if result is not obtained
1BLKUnder all
conditions
Check for voltage to ground:
There should be 1 V or less.
. Poor ground (G502)
. An oDen in the wire
YELlgnition switch
oN (||)Check for voltage to ground:
There should be battery
voltaqe.
Blown No. 10 {7.5A) fuse in lhe
under-dash fuse/relay box
An ooen in the wire
WHT/REDUnder all
conditions
Check for voltage to ground:
There should be battery
voltaqe.
' Blown No.9 (10A) fuse in the
under-hood fuse/relay box. An ooen in the wire
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Keyless/Power Door Lock System
Control Unit Input Test (cont'dl
5. Reconnect all connections to the underdash fuse/relay box, and make these input tests at the appropriate connectors on the under-dashfuse/relay box.
'lfanytestindicatesaproblem,findandcorrectthecause,thenrecheckthesystem.. lf all the inputtests prove OK, goto step 6.
CavitvWireTest conditionTest: Desired resultPossible ca use if result is notobtainedc1'l8LUUnder all conditionsAftach to ground:Parking, side marker, licenseplate lights, and tajllights shouldcome on.
Blown No.2 (15A)fuse in the underhood fuse/relay boxFaulty taillight relayFaulty under-dash fuse/relay boxAn onen in rhc wireBLU/BEOUnder all conditionsAttach to ground:Headlights should come on.Blown No. 15 or 17 (15A)fuse in theunderhood fuse/relay boxFaulty headlight relay '1 or 2An ooen in the wireJ2WHT/REDUnder all conditionsCheck for voltage to ground:There should be battery voltage.Blown No.9 (15A)fuse in the under-hood fuse/relay boxAn oncn in thc wircBLKUnder all conditaonsCheck for voltage to ground:Thcre shouln hc 1 V or lpqsPoor ground (G501)An ooen in the wireJ6OBNUnder allconditionsAttach to ground:The horns should sound.Blown No. 7 (15A)fuse in the underhood fuse/relay boxFaulty horn relayFaulty hornsAn 6nen in rhe wireJ7Under all conditionsCheck for voltage to ground:There should be battery voltage.Elown No. 16 (20A)fuse in the underhood fuse/relay boxAn oocn in ihc wi.cP18BEDHatch openCheck for voltage to ground:There should be 1 V or less.Poor ground (G552)Faulty hatch latch switchAn oncn in rhc wirFHatch closedCheck for voltage to groundlThere shoul.l he 5 V or moreFaulty hatch latch switch
GBNDriver's door openCheck for voltage to g.ound:There should be 1 V or less. Faulty driver's door switch. An ooen in the wireDriver's door closedCheck for voltage to ground:There should be 5 V or more.Faulty driver's door switchShort to oroundo4LT GRN/REDPassenger's door openCheck for voltage to ground:There should be 1 V or less.Faulty passenger's door switchAn ooen inthewirePassenger's door closedCheck for voltage to groundlThere should be sVor more
. Faulty passenger's door switch. Short to oroundX5REDAVHTlgnition key inserted intothe ignition swhchCheck for voltage to ground:There should be 1 V or less.Poor ground {G401)Faulty ignition key switchAn ooen inthewirelgnition key removed fromrhe ionition switchCheck for voltage to ground:There should be 5 V or more.Faulty ignition key switchShort to oroundY1WHT/BLKDriver's door lock knobswitch unlockedCheck for voltage to groundlThere should be 1 V or less.Poorground (G50'l)Faulty driver's door lock knob switchAn open in the wireDriver's door lock knobCheck for voltage to groundlIhere should be 5 V or more.Faulty driver's door lock knob switchShort to oroundY8YEUREDDriver's door lock knobswitch lockedCheck for voltage to groundlThere should be 1 V or less.Poorground (G50'l)Faulty driver's door lock knob switchAn oncn inihewireDriver's door lock knobswitch unlockedCheck for voltage to ground:There should be 5Vor more' Faulty driver's door lock knob sw;tch. Shorr to oroundY10WHT/GRNDrtver's door lock switchunlockedCheck for voltage to groundlThere should be 1 V or less.Poorground (G501iFaulty driver's door lock switchAn ooen in the wireDriver's door lock switch inCheck for voltage to ground:Therc shorl.l be 5V or m6rpFaulty driver's door lock switchShort to o rolrndY12WHT/BLUDriver's door lock switchlockedCheck for voltage to ground:There should be 'l V or less.Poor ground (G501)Faulty driver's door lock switchAn oDen in the wireDriver's door lock switch inCheck tor voltage to ground:There should be 5Vor moreFaulty driver's door lock switch
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