out HONDA CIVIC 1996 6.G Workshop Manual

Opener and Latch
Hatch Latch/Lock Cylinder Replacement (cont'd)
4. Pullthe lock rod out.
lf necessary, remove the lock cylinder.
>: Bolt locelion. 1
6xr.omm I9.8 N.m (1.0 kq .m, I9.8 N.m (1.0 kq .m, I,:!!_J
6. Install in the reverse order of removal, and note
these atems:
. Apply grease to the hatch latch.. Make sure the connector is connected properly.. Before installing the hatch trim panel, make surethe hatch opens properly and locks securely.
ry*)*,,
\""<,/
.z ,/\
20-134

Body ('99 model)
Dashboard
Center Panel Removal and
lnstallation
Bumpers
Front Grille Removal and
lnstallation
Front Air Spoiler Replacement ."'.....
Seats
Front Seat DisassemblY and
ReassemblY 20-138
Front Seat Torsion Bar
Replacement '.'...".'....'... 20-139
Emblems
tnstallation 20-140
20-136
20-136
20-137
Outline of '99 Model Changes
The center Danel removal and installation procedures are different'
The front grille removal and installation procedures are different'
The front air spoiler has been added for some models of 2D'
A height-adjustable driver's seat was added to some models'
Emblems were added for some models ot 2D'

DashboardBumpers
I
Center Panel Removal and
Installation
1. Remove the dashboard center lower cover.
2. Remove the screws, then pull out the center panel.
>: Sc.ew locationi,4 >: Clip locationsA >,3B>,4rl
@Y,
UPPER VENT I(NOB
Disconnect the connectors from the heater controlunit and hazard warning switch.
Installation is the reverse of the removal procedure.
NOTE: Make sure the connectors are connectedpropefly.
20-136
Installation is the reverse of the removal procedure.
FRONT BUMPER
a&
Front Grille Removal and
Installation
NOTE: Take care not to scratch the front bumper.
Remove the front bumper. Remove the screws. thenslide the front grille forward by detaching the hooks.
>: Scrow locltion3,6
I
dbp i

Reassemble in the reverse order of disassembly' and
note these items:
. Make sure the bushing and pivot washer are installed
properly.
. To connect the connecting wire, twist it 90'.
. Replace the back cover clips with new ones
. To prevent wrinkles when installing the seat-back
cover, make sure the material is stretched evenly
over the pad.
. Apply multipurpose grease to the moving portion of
the seat track.
Front Seat Torsion Bar
Replacement
NOTE| Take care not to tear the seams or damage the
seat covers.
1. Remove the seat cushlon
2. Remove the torsion bar from the hook with a flat tip
screwdriver, then pull out the torsion bar from the
seat cushion frame Put on gloves to protect your
ha nds.
TORSIONSAR
SEAT CUSHION FNAME
TORSION BARSEAT CUSHION
FLAT TIP SCREWDRIVER
3. lnstall in the reverse order of removal'
20-139

Body {'00 model}
Seat Belts
Child Seat Anchor Plate Removal/
f nstallation 20-142
Emblem
f nstallation 20-144
Outline of '00 Model Changes
The child seat anchor plate removal and installation procedures are different'
An emblem was added for some model of 3D.

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.

Troubleshooting -'96 - 98 Models
Symptom Chart
NOTE;
. Check the engine coolant level. and allow the engine to warm up before troubleshooting.
. Any abnormality must be corrected before continuing the test.
. Because of the precise measurements needed. use a multimeter when testing.
o Before performing any troubleshooting procedures check:- Fuses No. 41 11.5 Al, No. 55 (40 A) in the under-hood fuse/relay box. and No. 17 (7.5 A) in the under-dash fuse/relay
box- Grounds No. G401, G402- Cleanliness and tightness of all connectors
SymptomRomedy
Hot air flow is low.Blower motor runs. but one or more
speeds are inoperative.
Perform the procedures in the flowchart (see page 21-8).
Blower runs properly.Check for the following:. Clogged heater duct. Clogged heater outlet. Incorrect door position
No hot air flow.Blower motor does not run at all,Perform the procedures in the flowchart (see page 21-10).
Blower motor runs.Check for the following:. Clogged heater duct. Clogged blower outlet. Clogged heater valve. Faultv air mix door. Heater valve cable adjustment (see page 21-44). Air mix control cable adiustment (see page 2'l-441. Faulty cooling system thermostat (see section 10). Clogged evaporator (with air conditioning). Frozen evaporator {with air conditioning)
Mode control motor does not run, or one or more modes
are inooerative.
Perform the procedures in the flowchart (see page 21-13).
Recirculation control door does not chanqe between
FRESH and RECIRCULATE.
Perform the procedu.es in the flowchan (see page 21-16).
Both heater and A,/C do not work.Perform the procedures in the flowchart (see page 21-18),
21-6

Heater Control Panel Input/Output Signals
HEATER CONTROL PANEL lilP CONNECToR
Wire side of lemale terminals
21-7
Terminal
No.
Wire
colorSignalTerminal
No.
Wire
colorSignal
1YELHEAT/DEFINPUT8YEVREDVENTINPUT
BLfiELINPUT9G RNI/ELHEATIr'ENTINPUT
WHT/BLU+BINPUT'10BLKGROUNDOUTPUT
4YEUBLUDEFINPUT11*BLU/REDA./C THERMOSTATINPUT
5REDDASH LIGHTS
BRIGHTNESS CONTROLLEROUTPUT12GRN/WHTFRESHINPUT
6RE D/8LKCOMBINATION LIGHT
SWITCHINPUT13GRN/REDRECIRCULATEINPUT
1BLUMHTHEATINPUT14GRNHEATER FAN SWITCHOUTPUT

Troubleshooting -'99 - 00 Models
Symptom
Mode control motor does not run, or one or more modes are inoperat've'
Recirculation control door does not change between Fresh and Recirculate'
Blower motor only runs on high speed position; it does not run in any other speed positions
Blower motor does not run at all.
Both heater and Ay'C do not work
See pags
a1_tq
21-21
21-29
21-31
21 35
Symptom Chart
For electrical malfunctions which are indicated by the self-diagnostic system, refer to self-diagnosis function (see next
page).
Note these items before troubleshooting a symptom'
. Check the engine coolant level, and allow the engine to warm up before troubleshooting'
. Any abnormality must be corrected before continuing the test
.Becauseoftheprec|semeasurementsneeded,UseadigitaImu|timeterwithanoutputoflmAor|essatthe20ko
range when testing
. Before performing any troubleshooting procedures check:
- Fuses No. 41 115 Al, No 55 (40 A)]n the under-hood fuse/relay box' and No 17 (7 5 A) in the under-dash fuse/relav
box- Grounds No. G401, G402
- Cleanliness and tightness of all connectors
21-19

Air Mix Gontrol Motor
Recirculation indicator light indicates Diagnostic Trouble code (DTC) 1l A problem in the air mix control linkage, door and
motor.
The air mix control motor regulates the mixture of cool/hot air according to outputs from the heater control panel'
Self-diagnosis circuit check indi'
cates a Problem in the air mix
conlrol motor circuit,
Check th6 aii mix conirol motor:
1. Disconnect the air mix control
motor 5P connector.
2. Test the air mix control motor(see page 21-46).
check the air mix control linkage
and doors:1. Remove the air mix control
motor (see Page 21-46)
2. Check the air mix control link-
age and doors lor smooth
movement.
ls the air mix control motor OK?
Do the air mix control linkage and
doors move smoolhlY?
R€olace the air mix control motor'
Check tor a short in the wiles:
1. Disconnect the heater controlpanel 20P connector-2. Check for continuitY between
body ground and the heater
control panel 20P connector
terminals No.3 and 4 individ'
uaIY.
Ropair any short in th€ wire{s}
betweon the heater control Paneland the air mix control motor'
HEATER CONTROL PANEL 2OP CONNECTOR
RED/WHTRED/YEL
Wire side ot female terminals
(cont'd)
fo page 21-22
21-21