1998 HONDA CIVIC Workshop Manual

lights suspension tire type fuse diagram height tire pressure reset

Page 1953 of 2189

HONDA CIVIC 1998 6.G Workshop Manual - How the Circuit Works
96198 Models
The air delivery system directs the flow of air used
by the heater and air conditioner systems.
Mode Selection
Mode selection is controlled by the mode switches
i

- How the Circuit Works
'96198 Models
The air delivery system directs the flow of air used
by the heater and air conditioner systems.
Mode Selection
Mode selection is controlled by the mode switches
in the heater control panel and the mode control
motor. When you select a specific mode, voltage is
applied through the dimming circuit to the LED,
which comes on, indicating the mode selected.
Ground is orovided to the mode control motor
though that mode switch. The motor then runs until
the air control door reaches the proper position.
Fresh/Recirculation 56lection
When you press the fresh or recirculation button, a
ground signal is sent from the heater control panel
to the recirculation control motor. The motor then
runs until the recirculation door reaches the proper
position. Battery voltage is also applied through the
dimming circuit to the corresponding LED, and the
LED comes on.
Refer to the Service Manual (Section 21, Heater) for
specitic tests or troubleshooting proc€dures.
'99J00 Models
The heater control panel receives battery voltage at
all times through fuse 47. With the ignition switch in
ON (ll), voltage is supplied to the heater control
panel through fuse 17. The control panel is
grounded at G402.
The heater control panel controls the air delivery
motors, and supplies a 5 VDC reterence voltage to
the air mixture control motor.
The air mixture and mode control motors each
receive inputs trom the heater control panel. The air
mix motor regulates the mixture of cold and hot air
by varying the position of the heater-evaporator doot
The mode control motor controls the direction and
volume of outlet air. The air flow can be directed to
the dashboard vents or the corner vents.
Both the air mixture control molor and mode control
motor are grounded by the h€aler control panel.
The recirculation control motor receives battery
voltage through fuso 17 when the ignition swilch is
in ON (ll). lt regulates the position of the fresh/recirc
door, and is controlled by two position inputs from
the heater control panel ("Recirc" and "Fresh").
Refer to the Service Manual (Section 21, Heater) tor
specific tests or troubleshooting procedures.
61-3

Page 1954 of 2189

$HONDA CIVIC 1998 6.G Workshop Manual A/C Compressor Controls - AllModels cc5)M7 BLU/RED ? \a @ &cCOMPRESSORCLUTCHRELAYPHOfO 10 a ! ,acc, : POWERTRATN! arn.^-^,o..^, I or ENGINE ! ii i"i-iiii"v i.,ii.r | fi 3$18. I A/C request ! (pCM or E$

Page 1955 of 2189

HONDA CIVIC 1998 6.G Workshop Manual - 96-98 Models
From C214 onfacing page.
v
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UNDER.HOODFUSE/RELAYBOX
HEATERco TROLPANEL----1 Dimmino
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lrcI
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Page 1956 of 2189

HONDA CIVIC 1998 6.G Workshop Manual AiC Compressor Gontrols (contd)
- 99-00 Models
From page 62.
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ihtli4
BLUAVHT
15
6LUAVHT
UNDER.HOODFUSE/RELAYBOX
Seg Pow6rDistrlbutiofl,pag€ l Gl1-c353PHO|O 8
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Page 1957 of 2189

HONDA CIVIC 1998 6.G Workshop Manual - How the Circuit Works
Battery voltage is supplied through tuse 56 to the
A,/C compressor clutch r€lay contacts at all times.
With the ignition switch in ON (ll), vollage is applied
to the coil of

Page 1958 of 2189

$HONDA CIVIC 1998 6.G Workshop Manual Fans - AllModels\,1 | splicedtogetherinstead of inthe junctionconnector onDl6Y5 models c211PHOTO 11 FANRELAYPrtofo 10 Se€ Ii CCompre€sorCont ols 1 ALKAED a c352 f BLKaEou Y 9,;%,.cFN I vIEw 5e ;$

Page 1959 of 2189

HONDA CIVIC 1998 6.G Workshop Manual - 96-98 Models
Fromunder,hood i-T ig;Eili--l UiB!* il-;;.;l
Fuse/Relay Box onrac,nspaee | 1"1 seepower i$f" I i tS^* !
V L-I----q,ryli"--Jri
L8ry-s:d-J
| 9 X ,cgr,g "" wxr eru I vrw i."
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Page 1960 of 2189

HONDA CIVIC 1998 6.G Workshop Manual Fans (contd)
- 99-00 Models
Switch"common
a,/cTHERMOSTATOff below3C (37" F).
rla
iTm,il-- l5;i;T iln"lgg1
L_t]stE"_i*-o* !-J-___i
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I I .-.. Sse Power II ,

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