1998 HONDA CIVIC mode door

Temperature Control
Adjustment -'96 - 98 Models
1. From under the hood, disconnect the heater valve
cable from the heater valve.
TERVALVECABLEHEATER VALVE ARM
2.From under the dash, disconnect the air mix control
cable housing from the cable clamp,
AIR MIXCONTROLARM
3.Set the temperature control lever to MAX. COOL.
With the air mix control cable attached to the air
mix control arm, gently pull on the outer cable
housing to fully close the door and to remove any
slack in the cable. Don't pullto hard, or the temper-
ature control lever will move.
Hold the air mix control arm against the stop. then
snap the air mix control cable housing into the
cable clamp.
21-44
6. From under the hood. move the heater valve arm to
the fully closed position. then attach the heater
valve cable to the heater valve arm.
7. Hold the heater valve arm in the closed position,
and gently pull on the heater cable outer housing to
take up any slack. then install the heater valve cable
housing into the cable clamp.
HEATER VALVE ARM

Air Mix Gontrol Motor
't.
Test -'99 - 00 Models
Disconnect the 5P connector from the air mix con-
trol motor.
Connect battery power to the No. 1 terminal of the
air mix control motor, and ground the No. 5 termi,
nal; the air mix control motor should run, and stop
at MAX HOT. lf it doesn't, reverse the connections;
the air mix control motor should run, and stop at
MAX COOL.
lf the air mix control motor does not run, remove
it, then check the air mix control linkage and
doors for smooth movement.
lf they move smoothly, replace the air mix con-
trol motor.
AIR MIX CONTROL MOTOR
Measure the resistance between the No.2 and No.3
terminals. lt should be approximately 4.8 to 7.2 kO.
Measure the resistance between the No. 2 and No. 4
terminals. lt should be approximately 3.84 to 5.76 kO
at MAX HOT and approximately 0.96 to 1.44 kO at
MAX COOL.
21-46
5P OONNECYOB
Replacement -'99 - 00 Models
1, Disconnect the 5P connector from the air mix con-
trol motor. Remove the self-tapping screws, the airmix control motor and the flange collar.
CONTROLMOTOR
Install in the reverse order of removal. After installa-
tion, make sure the air mix control motor runs
smoothly.

Mode Control Motor
2.
Test
1.
4.
Disconnect the 7P connector from the mode control
motor.
Connect battery power to the No, 1 terminal, and
ground the No.7 terminal,
CAUTION: Never connecl the battery in iho oppo-
site direction.
Using a jumper wire, connect the No. 7 terminal
individually to the No. 2,3, 4,5 and 6 terminals in
that order. Each time the connection is made, the
mode control motor should run smoothly and stop.
NOTE: lf the mode control motor does not run when
jumping the first terminal, jump that terminal again
after jumping the other terminals. The mode control
motor is OK if it runs when jumping the first termi-
nal again.
MODE CONTROL MOTOR
lf the mode control motor does not run in step 3,
remove it. then check the mode control linkage and
doors for smooth movement. lf they move smoothly,
reolace the mode control motor,
Replacement
1. Disconnect the 7P connector from the mode control
motor,
Remove the rod from the arm of the mode control
motor.
Remove the tyvo self-tapping screws and the mode
control motor.
lnstall in the reverse order of removal. After installa'
tion, make sure the mode control motor runs
smoothly.
7P CONNECTOR
21-47

A/C System Service
Performance Test
The performance test will help determine if the air con-
ditioner system is operating within specifications.
Use only service equipment that is U.L.-listed and is cer-
tified to meet the reouirements of SAE J2210 to remove
HFC-134a (R-134a) from the air conditioner system.
CAUTION: Exposure to air conditionor rofrigerant and
lubricant vapor or mist can irrilalo €yes, nose and
throat. Avoid breathing tho air conditioner rstrigerrnt
and lubricant vapor or mist,
lf accidental system discharge occurs, ventilate work
area before resuming service.
R-134a service equipment or vehicle air conditioner sys-
tems should not be pressure tested or leak tested with
compressed air.
@ some mixtur$ of air and R-134a have been
shown lo b9 combustible rt glgvatad pr€ssur63 and can
resull in tire 01 oxplosion causing inlury ot property
damage. Never uao compre33ed air to pressure t99t R-
134a ssrvico 6quipmsnt or vohicla air conditioner sys-
tems.
Additional health and safety information may be obtained
from the refrigerant and lubricant manufacturers.
'1. Connect a R-134a refrigerant recover/recycling/
charging station to the vehicle, as shown, following
the equipment manufacturer's instructions.
2. lnsert a thermometer in the center vent outlet.
Determine the relative humidity and air tempera-
ture,
Test conditions:
. Avoid direct sunlight.
. Open hood.
. Open front doors.
. Set the temDerature control lever or dial to MAX,
COOL, the mode control switch or dial on VENT
and the recirculation control switch on RECIRCU-
LATE.
. Turn the A,/C switch on. and the heater fan switch
on MAX.
. Run the engine at 1,500 rpm.
. No driver or passengers in vehicle
After running the air conditioning for 10 minutes
under the above test conditions, read the delivery
temperature from the thermometer in the dash vent
and the high and low system pressure from the A,/C
gauges.
Recovery/Rocycling/Charging Station
22-24

O
UNDER.OASHFUSE/NELAY BOX
. TCM (CVT): Coupe. KEYLESS DOOR LOCK CONTROL UNIT: '99 model {USAI
REAR WINDOWDEFOGGEB
INTERLOCK CONTROL UNIT
POWER WINDOW RELAY
oF- -=----rr Jl r c
23-11

Gonnector ldentification and Wire Harness Routing
Floor Wire Harness lCoupe/Haichbackl
Connsclor or
Terminal
Number of
CavitiesLocationConnects toNotes
c551
c552
c553
c554
c556
c556
c557
c558
c560
c561
c562
c564
c56s
16
8'16
14
20
2
25,)
,I
2
1
14
20
2
2?
1
10
Behind underdash fuse/relay box
Behind under-dash fuse/relay box
Above under-dash fuse/relay box
Under left side of dash
Above under-dash fuse/relay box
Above under-dash fuse/relay box
Driver's door
Driver's door
Passenger's door
Passenger's door
Middle of floor
Left side offloor
Left B-pillar
lnside of left rear wheel
Left c-pillar
Left C-pillar
Left C-pillar
Fueltank
Fueltank
Inside of right rear wheel
Right B-pillar
Fueltank
Left side ot dash
Under-dash fuse/relay box {C923)
Under-dash fuse/relay box (C921)
Dashboard wire harness {C503)
Main wire harness (C402)
Main wire harness (C401)
Main wire harness {C401)
Driver's door wire harness (C631)
Driver's door wire harness (C631)
Passenger's door wire harness (C651)
Passenger's door wire harness (C651)
Parking brake switch
Driver's seat belt switch
Driver's door switch
Left rear ABS wheel sensor
Rear wire harness (C601)
Rear wire harness (C601)
Rear wire harness {C602}
Fuel gauge sending unit
Fuel pump
Right rear ABS wheel sensor
Passenger's door switch
Fuel tank pressure sensor sub-harness(c791)
Power mirror switch
ABS
ABS
ABS
G551
G552
Left kick panel
Left side of floor
Body ground, via floor wire harness
Body ground. via floor wire harness
*1r With power windows*2: Without power windows*3: D16Y8 engine {Coupe)
*4: '96 - 98 models*5: '99 - 00 models
23-40

Gonnector ldentification and Wire Harness Routing
Connector ol
Terminal
Number of
CavitiesLocationConnects toNotes
c553
c554
c556
c557
c557
c558
c559
c560
c561
c562
c563
c564
c565
c566
c567
L5bY
c570
c511
c572
c513
6
14
25
2
25
'|
1
2't4
1'10
6
6
I
1
Behind underdash fuse/relay box
Behind under-dash fuse/relay box
Above under-dash fuse/relay box
Under left side of dash
Above under-dash fuse/relay box
Drlver's door
Driver's door
Passenger's door
Passenger's door
Middle of floor
Left side of floor
Right B-pillar
lnside of left rear wheel
Left C-pillar
Left C-pillar
Fuel tank
Fuel tank
Inside of right rear wheel
Left B-pillar
Left side of steering wheel
Right B-pillar
Left B-pillar
Left quarter panel
Right quarter panel
Under-dash fuse/relay box {C923)
Under-dash fuse/relay box (C921)
Dashboard wire harness (C503)
Main wire harness (C402)
Main wire harness (C401)
Driver's door wire harness (C631)
Driver's door wire harness (C631)
Front passenger's doorwire harness (C651)
Front passenge/s doorwire harness (C651)
Parking brake switch
Driver's seat belt switch
Front passenger's door switch
Left rear ABS wheel sensor
Rear wire harness (C601)
Rear wire harness (C602)
Fuel gauge sending unit
Fuel pump {FP)
Right rear ABS wheel sensor
Driver's door switch
Power mirror switch
Right rear door wire harness (C671)
Left rear door wire harness (C661)
Left rear door switch
Right rear door switch
ABS
ABS
ABS
G552
Left kick panel
Left side of floor
Body ground, via floor wire harness
Body ground, via floor wire harness
Floor Wire Harness lSedanl: '96 model
*l:With power windows*2; Without power windows
23-42

Gonnector ldentification and Wire Harness Routing
Floor Wire Harness (Sedanl: '97 - 00 models
Connector or
Terminal
Number of
CavitiesLocationConnects toNotes
c552
c553
c554
c555
c556
c557
c557
c558
c559
c560
c56'l
c562
c563
c564
c566
c568
c569
c570
c571
c572
16
8
14
20
25
2
2
1
2
1
20
2
2
2
1
l0
1
1
Behind under-dash fuse/relay box
Behind under dash fuse/relay box
Above under-dash fuse/relay box
Under left side of dash
Above under-dash fuse/relay box
Above under-dash fuse/relay box
Driver's door
Driver's door
Passenger's door
Passenger's door
Middle of floor
Left side of floor
Right B-pillar
Inside of left rear wheel
Left C-pillar
Left C-pillar
Left C-pillar
Fuel tank
Fuel tank
Inside of righr rear wheel
Left B-pillar
Fuel tank
Left side of steering wheel
Righr B,pillar
Left B pillar
I ofr ^,,.riar ^.^al
Right quarter panel
Under-dash fuse/relay box (C923)
Under-dash fuse/relay box (C921)
Dashboard wire harness (C503)
Main wire harness (C402)
Main wire harness (C401)
Main wire harness (C401)
Driver's door wire harness (C631)
Driver's door wire harness {C631}
Front passenger's door wire harness (C651)
Front passenger's door wire harness (C651)
Parking brake switch
Driver's seat belt switch
Front passenger's door switch
Left rear ABS wheel sensor
Rear wire harness (C601)
Rear wire harness (C601)
Rear wire harness (C602)
Fuel gauge sending unit
Fuel pump (FP)
Right rear ABS wheel sensor
Driver's door switch
Fuel tank pressure sensor sub-harness(c791)
Power mirror switch
Right rear door wire harness (C671)
Left rear door wire harness (C661)
Left rear door switch
Right rear door switch
ABS
ABS
ABS
G551Left kick panel
Left side of floor
Body ground, via floor wire harness
Body ground, via floor wire harness
"1r With power windows*2: Without power windows
*3:'97 - '98 models*4: '99 - 00 models
23-44