2003 HONDA CIVIC door

Heating and Air Conditioning
Recirculation Control Motor Test
1. Disconnect the 5P connector from the recirculation
control motor.
Incorrectly applying power and ground to
the recirculation control motor will damge it.
Follow the instructions carefullv.
2. Connect batterv oower to the No. 5 terminal ofthe
recirculation control motor, and ground the No. 1
and No. 2 terminals; the recirculation control motor
should run smoothly. To avoid damaging the
recirculation control motor, do not reverse power
and ground. Disconnect the No. 1 or No. 2
terminals from ground; the recirculation control
motor should stop at Fresh or Recirculate. Don't
cycle the recirculation control motor {or a long time.
RECIRCULATION CONTROL MOTOR
lf the recirculation control motor does not run in
step 2, remove it, then check the recirculation
control linkage and doors for smooth movement.
. lfthe linkage and doors move smoothly, replace
the recirculation control motor.. lf the linkageordoorsstickor bind, repairthem
as neeoeo.
21-36
Recirculation Control MotorI
Replacement
1.Remove the ECM (see page 11-4).
Remove the relay mount bracket bolt. and move
the relays out of the way,
Disconnect the 5P connector (A) from the
recirculation control motor (B), Remove the self-
tapping screws and the recirculation control motor
from the blower unit.
Installthe motor in the reverse order of removal.
Make sure the pin on the motor is properly
engaged with the linkage. After installation. make
sure the motor runs smoothly.
\

Blower Unit Components Replacement
Nole these items when overhauling the blower unit;
' The recirculation control motor (A), the power transistor (B), the blower motor (C), and the dust and pollen filtefs (D)
can be replaced without removing the blower unit.. Before reassembly, make surethatthe recirculation control linkage and doors move smoothly.. After reassembly, make surethe recirculation control motorruns smoothly (see page 2j-36).
A
21-41

Heating and Air Conditioning
A/C System Tests (cont'd)
1.
Performance Test
Air conditioning refrigerant or lubricant vapor
can irritate your eyes, nose, or throar.
Be carefulwhen connecting service equipment.
Do not breathe refrigerant or vapor.
The performance test will help determine if the air
conditioner system is operating within specifications.
Use only service equipment that is U.L.-listed and is
cenified to meet the requirements of SAE J2210 toremove HFC-134a (R-134alfrom the air conditioning
system.
lf accidental system discharge occurs, ventilate the
work area before resuming service
R-134a service equipment or vehicle air conditioning
systems should not be pressure tested or leak testedwith compressed air.
Additional health and safety information may be
obtained from the refrigerant and lubricant
manufacturers.
Connect a R-134a refrigerant recover/recycling/
charging station to the high-pressure service port
and the low-pressure service port, following the
equipment manufacturer's instructions.
Determine the relative humidity and air
Iemperaru re.
' Compressed air mixed with R-134a forms a
combustible vapor.. The vapor can burn or explode causing serious
Injury.. Never use compressed air to pressure test
R-134a service equipment or vehicle air
conditioning systems.
21-58
4.
Open the glove box. Remove both glove box stops,
then let the glove box hang down (see page 20-63).
Insert a thermometer (A) in the center vent, andplace another thermometer {B) near the blower unit.
Test conditions:
. Avoid direct sunlight.. Open the hood.. Open the front doors.. Sel the temperature control dial on Max Cool, the
mode control dial on Vent, and the recirculation
control switch on Recirculate.. Turn the A,/C switch on and the fan switch on Max.. Run the engine at 750 rpm.. No driver or passengers in vehicle.
After running the air conditioning for I0 minutes
under the above test conditjons, read the delivery
temperature from the thermometer in the center
vent, the intake temperature near the blower unit,
and the high and low system pressure from the Ay'Cga uges.

Power WindowsComponent Location Index ..........
circuit Diagram . .. ............... .........:.::::.::::.:Master Switch Input Test ...........................Master Switch TestDriver's Window Motor Test .....................
Passenger's Window Switch lnput Test ...Passenger's Window Switch Test .............
Passenger's Window Motor Test ..............
lMaster Switch Replacement ......................
Passenger's Window SwitchReplacement
Wipers/WashersComponent Location Index .......................
Circuit DiagramRear Window Wiper Intermiftent
Control Unit Input Test ...........................Wiper/Washer SwitchTesVReplacementControl Unit Input Test ...............................Wiper Motor Test
Washer Motor TestWasher Fluid Level Switch TesV
Replacement (Canadal ..........................
Windshield Wiper Motor Replacement ....
Rear Window Wiper MotorReplacementWasher Reservoir Replacement ................
Washer Tubes Beplacement ......................
Accessory Power SocketCircuit Diagram ......... 22-149
Accessory Power Socket
TesVReplacement ................................... 22-1 49
Keyless/Power Door Lock System
Component Location Index ....................... 22-150
Circuit Diagram ......... 22-151Keyless Receiver Unit InputTest ............... 22-153
Control Unit Input Test ............................... 22-155
Door LockActuatorTest .........,.......,..,.,..... 22-158Hatch LockActuatorTest ........................... 22-159
Door Lock Knob Switch Test ...................... 22-160
Door Lock Switch Test ................................ 22-160
Transmitter Test ....... 22-161
Transmitter Programming ......................... 22-161
Multiplex Control SystemComponent Location Index ...........
circuit Diagram ...... ........................::.:..:.::.:
Svstem DescriDtionTroubleshootingMultiolex Control Unit InDut Test .............
22 12422-12522-12622-12822-129
22- t30
22-13222 13222-133
22-133
22-134
22-138
22-14022-14122-14322-144
22-14422-145
22-14622-14622 147
22,16422-16922-17'l22,11222-175
lmmobilizer Systemcomponent Location Index ...........
System Description ....... ............. ..:..:..:.:...
Circuit DiagramTroubleshootinglmmobilizer Control Unit-Receiver Replacement ...........................
22-16222-16322-164
22-167

Relay and Control Unit Locations
Door and Seat
Driver's Door:
Passenger's Seat:
l\:
].\
POWER WINDOW MASTER SWITCHlHas built-in control unit)
22-12

Gonnectors and Harnesses
aGonnector Index
ldentification numbers have been assigned to in-line connectors. The number is preceded by the letter "C" for connectors, "G" for groundterminals or "T" for non ground terminals.
HamessLocationEngine CompartmentDashboardOthers {Floor, Door,Trunk. and Roo{lNot€s
Starter subharnessC102 and C103T1 and T2T101 and T102
(see page 22-15)
Battery ground cableT3G'l and ( -{see page 22-l!)
Engine ground cableT4{see page 22-14)
Engine wire harnessCl0l through C104G 101(see page 22 16)
Engine compartment wire harness{rioht branchiG201 and G202(see page 22 18)
Engine compartment wire harness(left brench)G301(see page 22 18)
Engine compartment wire harness(dashboard)c401C451 and C452C501 through C503c551c851G402
(see page 22-18)
EPS subharnessC151 and C152G'151\see page 22 241
Dashboard wire harness Alleft branch)C504 through C510G501 and G503(see page 22-26)
Left side turn signal lightc506(see page 22-26)
Dashboard wire harness A(right branch)C50l through C503C5ll through C515C852 and C853G502
(see page 22-26)
Right side turn si9nal lightsub harnesslsee page 22-26)
Dashboard wire harness BC40l through C403c510G40l
(see page 22-30)
ECM wire harnessc101cl52C451 through C453c511G451
{see page 22-32}
Floorwire harness (front side)C402 and C403 G551c453C508 and C509c512C551 an.l C55?
(see page 22'34)
Floor wire harness (rear side)C553 and C554(see page 22-34)
Roo{ wire harnessc507(see paqe 22-38)Hatch wire harnessC553 and C554(s6e paqe 22'39)Driver's door wire harnessC504 and C505(see paqe 22-40)Passenqer's door wi.e harness514 and C515(see oaoe 22-41Te harness)552(see oaqe 22-42i/C wire harnessc851 rhrouoh c853(see paqe 22.43i
22-13

Connectors and Harnesses
Dashboard Wire Harness A {Left branchl
Connector or TerminalffiAccessory power socketAudio antennaBrake pedal position switchClutch interlock switchClutch pedal poistion switchCruise control unitCruise main switchDaytime r!nning lights control unitDaytime running lights relayGauge assembly connector AGauge assembly connector BHazard warning switchHeater control panel connector AHeater control panel connector BHVAC push switch assemblyKeyless receiver unitLow beam cut relayOptional security connectorPower mirror switchUnder-dash fuse/relay boxconnector K (see page 22-45)Under'dash fuse/relay box
L {see page 22-45}Underdash fuse/relay boxconnector M lsee page 22'45)Under-dash fuse/relay boxconnector N (see page 22-45)UndeFdash fuse/relay boxconnector O (see page 22-45)UndeFdash fuse/relay boxconnectorY (see page 22 45)c504
c505
c506
c507
c508
c509
c510
22226
3029628
I820111819105327
,I4
12
11
34
1
24
25
2 Under middle of dash2 Under left side of dash4 ] Under left side of dash2 ] Under left srde of dash2 | Under left side of dash14 I Under left side of dash5 Under left side of dash14 Under lett side of dash4 Under lett side of dash22 I Behind gauge assembly22 i Behind gauge assembly10 Behind hazard warnning switch22 Behind heater control panel'14 Behind heater control panel10 ] Behind HVAC switch assembly5 I Under middle of dash5 lUnderleftsideofdash16 Under lefr side of dash13 Under left side oI dash17 ln the under-dash fuse/relay box
CanadaCanada
l0In the under-dash fuse/relay box
In the undeFdash fuse/relay box
In the underdash fuse/relay box
In the under-dash fuse/relay box
In the under-dash fuse/relay box
Under left side of dash
Under left side ot dash
Under left side of dash
Under left side of dash
Under middle of dash
Under middle of dash
Under middle ol dash
Driver's door wire harness(see page 22'40)Driver's door wire harness(see page 22-40)Left side turo signal lightsuonarnessRoof wire harness (see page22 3AlFloor wire harness {see page22-341Floor wire harness (see page22 34JDashboard wire harness B(see oaoe 22-30)
12
12
G501
G503
1
21
Under gauge assembly
Under left side of dash
Body ground via dashboard
Body ground via dashboard
Left Side Turn Signal Light Sub harness
Connector to Harness Index (cont'd)
L
Connector or TerminalCavitiesLocationConnects toNolesLeft side turn signal lightc506353422Behind left side turn signal lightUnder left side of dashDashboard wire harness A
22-26

Connectors and Harnesses
Connector to Harness Index (cont'd)
Dashboard Wire Harness A (Right branch)
Conneclor or TerminalCavitiesLocationConnects toNotesAudio u nit connectorc501
c502
c502
c503
c5'11
c512
c514
ca52
c8533
9
2
6
5
5
4
12
8
10
2010
4
8
5
8
2
6
21
'l
Eehind audio unitUnder right side of dash
Under right side of dash
Under right side of dash
tJnder right side of dash
Under middle of dash
Under middle of dash
Under right side of dash
Under right side of dash
Under right side of dash
Under middle ofdash
Under middle of dash
Engine compartment wireharness (see page 22,18)Engine companmentwireharness (see page 22-18)Engine compartment wireharness (see page 22-18)Engine compartment wireharness (see page 22- 18)ECN4 wire harness (see page22-321Floor wire harness {see page22-341Right side turn signal lightsuonarnessPassenger's door wireharness (see page 22 4l)Passenger's door wireharness (see page 22 4'l)A,/C wire harness (see page22-43)ly'C wire harness (see page22-431
USA
Canada
G502Under right side of dashEody ground via dashboard
Right Side Turn Signal Light Sub harness
Connector orTorminalCavitiesLocationConnectstoNot€sRight side turn signal lightc5't31822Eehind right side turn signal lightUnder rioht side of dashDashboard wire harness A
22-28