2003 HONDA CIVIC window

Ground Distribution
Ground to Components Index
GroundComponent or circuit qrounded
Batterv, Transmission housinq
E ngine
G 101ECM (PG is BLK; LG is BRN/YEL)
BLK: IAC valve, lgnition coils, Vehicle speed sensor, VTEC solenoid valve
BRNA/EL: Camshaft oosition (CMP) sensor. CKP sensor, TDC sensor. VTEC oil pressure switch
G 15']EPS control unit
G201ELD unit. Multiplex control inspection connector, Multiplex control unit, Power window relay, Rear
window washer motor, Right front parking light, Right front side marker light, Right front turn signal
light, Turn signal/hazard relay, Washer fluid level sensor (Canada) , Windshield washer motor,
Windshield wiDer motor
G202ABS modulator-control unit
G301
G401
Blower motor relay, Brake fluid level switch, Condensor fan motor, Cruise control actuator, Left front
parking light, Left front side marker light, Left front turn signal light, Radiator fan motor, Radiator fan
swrtcn
Combination liqht switch, lqnitlon kev srvitch, Wiper/wasfrer sr,virch
G402Left and riqht airbaq sensors, SRS unit
G 451Data link connector (DLC)
G501Clutch interlock switchm Clutch pedal position switch (for cruise control), Cruise control main switch,
Cruise control unit, Daytime running lights control unit (Canada), Driver's door lock knob switch,
Driver's door lock switch, Driver's power window motor, Heater control panel, Left power mirror
defogger (Canada), left side turn signal light, Moonroof control unit, Monroof open and close relays,
Moonroof position sensor '1, Moonroof seitch, Power mirror switch, Power transistor, Power window
master switch. SDotliqhts
G502Accessory power socket, Gauge assembly, Keyless receiver unit, lvlultiplex control unit, Right power
mirror defogger {Canada)
G503Audio unit
G551Driver's seat belt switch, Fuel gauge sending unit, Fuel pump, Memory erase signal (IMES) connector,
OPDS unit. Rioht seat belt switch
G552High mount brake light, License plate lights, Rear window defogger, Rear window defogger noise
condenser. Rear window wioer motor, Hatch latch switch
Back-up lights, Brake lights, Rear side marker lights, Rear turn signal lights, Rear window wiper noise
condenser, Rear window wiper intermittent control unit, Taillights
22-48

Relays
Power Relay Test
Use this chan to identify the type of relay, then do the
test listed for it.
NOTE: Turn signal/hazard relay input test (see page 22-
87).
RelayTest
A'lC comoressor clutch relavNormally-open
type AAirlfuel ratio sensor relav
Condenser fan relay
Headlioht relav 1
Headliqht relav 2
Horn relav
Power window relay
Radiator Ian relay
Reverse relav
Starter cut relav
Tailliqht relaV
Daytime running lights relay
{Canada )
PGM-FI main relav 1
PGM-Fl main relav 2
Blower motor relavNormally-open
tvpe BRear window defoqoer relav
Moonroof close relayFive terminal
typeMoonroof oDen relav
Low beam cut relav {Canada)
Normally-open type A:
Check for continuitv between the terminals.
. There should be continuity between the No. 1 and
No,2 terminals when power and ground are
connected to the No. 3 and No. 4 terminals.. There should be no continuity between the No. 1 and
No.2 terminals when power is disconnected.
type 1:
type 2:
PGM-FI main relay 1
PGM-FI main relay 2
type 1:
type 2:
(cont'd)
22-51

Relays
Power Relay Test (confdl
Normally-open type B:
Check for continuity between the terminals.
. There should be continuity between the No. 1 and
No. 3 terminals when power and ground are
connected to the No. 2 and No. 4 terminals.' There should be no continuity between the No, 'l and
No. 3 terminals when power is disconnected.
Blower motor relay
type 1:
type 2;
tF-gr
tJ 1l
Rear window defonn* *O,
6:)
rc*V
.r{{
n,\
(Ft)
s3.
22-52
Five-terminal type
Check for continuity between the terminals.
. There should be continuity between the No. 1 and
No.2 terminals when power and ground are
connected to the No. 3 and No. 5 terminals.. There should be continuity between the No. 1 and
No. 4 terminals when power is disconnected.
type 1:
type 2:
\

Rear Window Defogger
J
I
Component Location Index
*:Rear window defogger switch is built into the heater control panel.
UNDER.HOOD FUSE/RELAY BOX
REAR WINDOWDEFOGGER SWITCH+
t
REAR WINDOW DEFOGGER RELAYTest, page 22-51
u
NOISE CONDENSERCapacityTest, page 22 107
REAR WINDOW DEFOGGEBFunction Test, page 22 106Defogger Wire Repair, page 22 106
22-104
J

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.
22-106
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.

Power Windows
IJComponent Location Index
DRIVER'S WINDOW MOTORTest, page 22-129
UNDER.DASHFUSE/RELAY BOX
POWER WINDOW RELAYIest, page 22-51
FRONT PASSENGER'SWINDOW MOTORTest, page 22-132
tJ
POWER WINDOW MASIER SWITCHInput Test. Daqe 22.126Test, page 22--128Replacement, page 22-133
FRONT PASSENGER'S WINDOW SWITCHInDut Tesl, paqe 22-130f est, page 22-132Beplacement, page 22-133
al.l ' -f..--.--
L-.::
22-124
\J

Power Windows
Master Switch Input Test
NOTE: The power window control unit is built into the power window master switch, and it only controls the driver'swindow operations.
1. Remove the window master switch {A) (see page 22-133).
2. Disconnect the 14P connector (B) from the master switch.
GRN/WHT
3. Inspect the co nnector and socket terminals to be sure they are all making good contact.
. lf theterminals are bent, loose orcorroded, repairthem as necessary, and recheckthe system.. lf the terminals look OK, go to step 4.
22-126

4. Withthe connector still disconnected, makethese inputtests attheconnector.
.lfanytestindicatesaproblem,findandcorrectthecause.thenrecheckthesystem.
. lf allthe inputtests prove OK, goto step 5.
5. Reconnect the 14P connector to the switch, and perform the following input tests.
.lfanytestindicatesaproblem,findandcorrectthecause,thenrecheckthesystem.
. lf all the input tests prove OK, the control unit must be faulty. Replace the power window master switch.
CavityWireTest conditionTest: Desired resultPossible cause if result is not
obtained
10BLKUnder all conditionsCheck for continuity to
grouno:
There should be continuity.
. Poor ground {G50'1). An open in the wire
14
11G RN^,^/HTlgnition switch ON (ll)Check for voltage to
ground:
There should be battery
voltage.
Blown No.6 (7.5A) fuse in
the under-dash fuse/relay
box
Blown No. 22,23 l2OA) tuse
in the under-dash fuse/
relay Dox
Faulty power window relay
Poor ground (G201)
An open in the wire
2GRN/BLK
1RED/YELConnect the No. 'l'1 and
No. 7 terminals, and the
No, 4 and No. 14 terminals,
and turn the ignition switch
oN flr).
Check for driver's window
molor operaflon:
It should run (the driver's
window moves down).
. Faulty driver's window
motor. An open in the wireRED/B LK
3BLU/REDConnect the No. 2 and No. 1
terminals, and the No. 3
and No. 10 terminals, and
turn the ignition switch ON
fi r),
Check for passenger's
window motor operation:
It should run (the
passenger's window moves
oown).
Faulty passenger's window
motor
Faulty passenger's window
swatch
An open in the wire
BLU/WHT
CavityWireTest conditionTest: Desired resultPossible cause if result is not
obtained
13ORNConnect the No. 11 and
No. 7 terminals, and the
No. 4 and No. 14 terminals,
and turn the ignition switch
oN 0r).
Check for voltage between
the No. 13 and No. 14
termtnals:
About6Vshouldbe
indicated with the driver's
window motor running.
. Faulty driver's window
molor. An open in the wire
22-127