2000 HONDA CIVIC Air con

Dashboard
Gomponent Removal/lnstallation
(cont'd)
Center panel removal:
1. Remove:
. Center dashboard lower cover (see page 20-69)
. Radio {see section 23)
2. Remove the rear window defogger switch and haz-
ard warning switch, then disconnect the connectors.
>: Screw locations, 5 >: Clip locationsA>,4 B>,3
fii*-)
CENTERPANEI.
rt-xR.
W
IHAZARDWARNINGswlTcH
r44 "
F.IZvl
IIREARwtNoowOEFOGGERswtrcH
MtxCONTNOLCABLE
3. Disconnect the air mix control cable, and remove the
screws, then pull out the center panel.
4. Disconnect the connectors from the heater control
u nit.
5. Installation is the reverse of the removal procedure.
NOTE:
. Make sure the connectors are connected properly.
. Adjust the air mix control cable (see section 21).
20-70
Removal
SRS components are located in this area. Review the
SRS component locations, precautions, and procedures
in the SRS section (24) before preforming repairs or ser-
vice.
NOTE:
. An assistant is helpful when removing and installing
the dashboard.
. Take care not to scratch the dashboard, body and
related parts.
1. Remove:
o Front and rear consoles (see page 20-67)
. Console panel (see page 2O 67),
. Driver's dashboard lower cover and knee bolster(see page 20-68)
. Glove box (see page 20-69)
. Center dashboard lower cover (see page 20-69i
2. Lower the steering column (see section 17).
@ To avoid accidental deplovment and
possible injury, always disconnect the driver's
airbag connector belore lowering the steering col-
umn lsee section 241.
NOTE: To prevent damage to the steering column,
wrap it with a shop towel.
3. Disconnect the dashboard wire harness connectors,
remove the nuts, then move the under-dash fuse/
relay box. Disconnect the antenna lead and moon-
roof relay connectors.
DASHBOARD cltPs
CONNECTORS(for some models)
MOONROOFRELAY
ANTENNALEAO
FRAME
SRS MAINHARNESS
9.8 N.m (1.0 kgf m,7.2lbt.ltl
DATACONNECTOR WIRE HARNESSDetach. CONNECTORS

Remove the following parts Irom the dashboard'
. Driver's dashboard side cover
o Passenger's dashboard lower cover
. Dashboard center lid
Disconnect the connectors and air mix control cable'
6x1.0mm9.8 N.m 11.0 kgl.m,
D>, 1
@7 2'orftl - ---//_._J
,{nil Lll , ,"o
Ift#5 L //Hl Wlj%u|5 i//Wt qT
W72-t11 7'::--J
>: Clip locationsA>, 1 B>, 1
Loosen the bolt.
DASHBOARD
AIR MIX CONTROL
CONNECTORS
FRONT PASSENGER'SAIRBAG CONNECTOR
Remove the bolts, then lift and remove the dashboard'
CAUTION: Use proteqtive plates on the bottom ot the front pillar trim'(cont'd)
20-71
M,::;:"lx3T:iJnif:3lilH:fl"*:1::f"*'il;ili"'"
disconnect rhe front passeneer's airbas
>: Bolt, screw locaiions
A>,7B>, 1
,i( 8x125mm(!,@ 22 N.m t2.2 kstm,-v, 16 tbf.ftl
8xl.25mm I22 N.m 12.2 kgt'm, I'"tt:___J
c>, 1
@
c>,6

Dashboard
Removal (cont'd)
7. lf necessary, remove the dashboard frame from the dashboard.
>: Screw localionsa>,21 B>,4a: Nut locations, 3
>: Clip locations
l^1./'\
I Shl:' Olb'tvY/l\-]1
ra 6 x '1.0 mm
Yi.!i[11"-"'".
DASHBOARD BRACKETSIDE COVER
Installation is the reverse of the removal orocedure.
NOTE:
. Before tightening the bolts, make sure the dashboard wire harnesses are not pinched.a Make sure the connectors, antenna lead and air mix control cable are connected properly.
FRONT PASSENGER'S
OASHBOARD
20-72

Door and Side Moldings
Replacement (cont'dl
Door molding removal:
The following materials and tools are required to repairthe door moldings.
NOTE: Followthe manufacturer's instructions.
Materials: (Reference)
. Stripe remover
3M 08907
Stripe adhesive remover
3M 08908
Adhesive tape
3M Super Automotive Attachment Tape
Tools;
a Protective tape
. Knife or Cutter
. Sponge or Shop towel. Infrared dryer
. Film
. Putty knife
. Alcohol
CAUTION: Put on gloves to protect your hands,
Remove the door panel, and pull back the plastic
cover,
Apply protective tape on and around the molding.
3. Release the clips from inside of the door. Carefullvcut the adhesive tape with a knife or cutter whilepulling the edge of the molding away trom the dooras shown.
NOTE: Take care not to scratch or bend the mold-Ing.
1.
KNIFE
DOOR MOLDING
\
20-104
Door molding installation:
1. Glue the new adhesive tape to the moldings assnown.
[\\\l : Adhesive tape tocations60 mm4D: t2 t i^l
40 mm11.6 in)
Forward L
REAR DOOR
2Dl3Dl
CLIPHOLDER
100 mm(3.94 inl1,050 mm 141.34 inl
Forward !
DOOR MOLDING
DOOR MOLDING
5 mm {0.2 inl
ADHESIVE TAPEThickness: 1.2 mm 10.05 in)
Installthe clips on the molding.
Heat the bonding surface of the door and doormolding with an infrared dryer.
Door: 104 - 140"F (40 - 60.C)Molding: 68 - 86"F (20 - 30.C)
NOTE: Use care when heating to prevent deforma-tion of the molding.
Align the molding with the clip locations, and setthe molding. Lightly push on the molding until itsedge is fully seated on the adhesive tape.
NOTE: Do not spray water on the motding withinthe first 24 hours after installation.
Reassemble all removed pans.

Heater and Air Conditioning
Heater '.'..""" 21'1
Air Conditioning ......."'.. "' 22-1
SUPPLEMENTAL RESTRAINT SYSTEM (SRS}
The civic sRs includes a driver's airbag located in the steering wheel hub ln addition, all models (except some
models for canada) have a passenger's airbag located in the dashboard above the glove box'
Information necessary to safely service the sRS is included in this service Manual ltems marked with an asterisk (*)
on the contents page include, or are located near, sRs components. servicing, disassembling or replacing these
items will require special precautions and tools, and should therefore be done by an authorized Honda dealer'
@-";;il rendsring the SRS inoperative, which could lead to personal iniury or deaih in the svent of a sev€re
frontal collision. all SRS service work must be pertormed by an authorized Honda d€aler'
. lmploper service procedures, including incorrest removal and instsllation of the sRs, could lead to personal
iniury caused by unintentional deployment of the airbags'
o Do not bump the SRS unit. Otherwise. the system may fait in case of a collision. or the airbags may deploy
when the ignition switch is ON {ll}'
. sRs electrical wiring harncsses are id€ntified by yellow colol coding. Related components ale located in lhe
steering column, front console, dashboard, dashboald lowet panel, and in the dashboard above the glove box'
Do not use electricaltest equipment on these circuits.

Heater
lllustrated Index
'96 - 98 Models ................................ 21'2
'99 - 00 Models ................................ 21'3
Circuit Diagram
'96 - 98 Models .....21-4
'99 - 00 Models ................................ 21-5
Troubleshooting - '96 - 98 Models
Symptom Chart ............................... 21-6
Heater Control Panel Input/
Output Signals ..............,.............. 21-7
Flowcharts
Blower Motor Speed ................... 21-8
Bf ower Motor ,...21'10
Mode Control Motor ............... ,.'.' 21-13
Recirculation control Motor ....... 21-16
Heater Control Panel ................ ... 21 -14
Troubleshooting - '99 - 00 Models
Symptom Chart ............................... 21-19
Seff-diagnosis Function ............,,,.... 21-20
Flowcharts
Air Mix Control Motor ......,.......... 21-21
Mode Control Motor ............... ..... 21 -25
Recirculation Control Motor ....... 21-27
Bf ower Motor Speed .............. .....21'29
Bf ower Motor ....21-31
Heater Control Panel ................,.. 21-35
Heater Control Panel Input/
Output Signals ............................. 21-36
Blower Unit
Repf acement .........21-37
Overhaul ................ 21-38
* Heater Unit
Replacement ....'....21-39
overhaul """" """' 21-4'l
Heater Control Panel
Repfacement .........21'42
Overhaul -'96 - 98 Models ........... 21-43
Temperature Control
Adjustment - '96 - 98 Models """" 21-44
Adiustment - '99 - 00 Models .......21-45
Air Mix Control Motor
Test - '99 - 00 Models ...........' .......21'46
Replacement - '99 - 00 Models ....21'46
Mode Control Motol
Test ................, .,...'.21'47
Replacement '.'."...21-47
Recirculation Control Motor
Test ................. .......21-48
Repf acement ......." 21-48
Relays
Test ................. .......2'l-49
Heater Fan Switch
Test - '96 - 98 Models ............. .......21-49
Mode Control Switch
Test -'96 - 98 Models ..........."....... 21-50
Power Transistor
Test - '99 - 00 Models ....'........ ....".21-50
*: Read SRS Drecautions before working in this area.

lllustrated Index
'96 - 98 Models
SRS components are located in this area. Review the SRS component locations, precautions, and procedures in the SRS
section {24) before performing repairs or service.
BLOWER UNITReplacement, page 21-37Overhaul, page 21-38
HEATER UNITBeplacement, page 21-39Overhaul, page 21-41BLOWERRESISTOBTest,
CONTROL MOTORTest, page 21-48Replacement, page 21'48
a/c swtTcH{wirh A/c)
MOO€MOTORTest, page 21 47Replacement, page 21'47
AIR MIX CONTROL CABLEAdjustment, page 2'1-44Replacement, page 21'43
HEATER FANswtTcHTest, page 2l'49
MODEHEATER CONTBOLPANELswrTcHEsTest, page 21 50Rgplacement, page 2'l-42Overhaul, page 21-43
TEMPERATURE CONTROLLEVERAdiustment, page 21 44
Detroster-aqtivated A/C System
Turning the defroster on activates the A,/C and sets the air flow mode to FRESH. lt is possible to turn the A,/C off or to
change the air flow to RECIRCULATE by pressing the A/C bunon or the FRESH/RECIRCULATE button.
21-2

'99 - 00 Models
SRS components are located in this area, Review the SRS component locations, precautions, and procedures in the SRS
section (24) betore perfoming repairs or service.
HEATER UNITReplacement, page 21'39
Overhaul, page 21-41
BLOWEB UNITReplacement, page 21-37Overhaul, page 21 38
HEATER FANswtTcH
RECIRCULATIONCONTROL MOTORTest, page 21-48Beplacement, page 21-48
AIR MIX CONTROL MOTOBTest, page 21-46Replacement, page 21 46
BLOWERTest, page 21-49
POWER TRANSISTORTest, page 21 50
HIGH RELAY
MODE CONTROLDIALHEATER VALVE CABLEAdjustment, page 21 45TEMPERATURE CONTROLDIALAdjustment, page 21-45
REAR WINDOWDEFOGGERswtrcHSee section 23MODEMOTORTest, page 21 47Replacement, page 2 l-47A/C SWTTCH
lwith A/cl
CONTROL SWITCH
21-3