1997 BMW 318i BLOWER

610-26



ELECTRICAL
COMPONENT
LOCATIONS

Fuses31-46

v
.

-------------

Fuses
21-30

Fuses1-20

Fuse
positions
1-46
in
front
power
distribution
box

Tablee
.
1995
E36
Fuse
Positions

fuse



Rating



Protected
Circuit

1



30A



Power
sunroof

2



15A



Not
used

3



30A



Headlight
washer
(also
see
f
use
37)

4



15A



Heated
seats
(see
alsofuse
23)

5



30A



Power
seats
(see
alsofuse
40)

6



20A



Rear
window
defogger/blower(see
also
f
use
23)

7



5A



Central
body
electronics
(ZKE
IV)
(convertible
only)
(see
also
fuse
14,31,33,
35,43)
Centrallocking
(see
also
fuse
26,28,
35)
Convertible
roof
(see
also
fuse
27,
35,
42,43)
Interiorlights
(also
see
fuse
33,
43)
Roll-over
protection
(seealsofuse
35,42,
43)

8
I



15A
I
Horn

9
1



20A
1
Sound
system
(seealsofuse
33,
44)

0013034

10



30A



ABS
(seealsofuse
21,23,
27,
38,46,
47)
AST
(see
also
fuse
21,
26,27,38,
46)

11



7
.5A



Headlights/foglights
(see
also
fuse
12,
15,
17,
23,
25,29,
30)
On-Board
Computer
(seealsofuse
12,23,27,
31,
33,37,45,
46)

12



7
.5A



Headlights/foglights
(see
also
fuse
11,
15,
17,
23,25,
29,
30)
On-BoardComputer
(see
also
fuse
11,
23,27,
31,
33,37,45,
46)

13
I



5A
I
Notused
14



30A
~
Central
body
electronics
(ZKE
IV)
(see
alsofuse
7,
14,31,
33,
35,
43)
Front
power
Windows

15



15A



Headlights/foglights
(seealso
fuse
11,
12,
17,23,25,
29,30)

FOSE
POSITION
TABLES

Tablee
.
1995
E36
Fuse
Positions

fuse



1
Rating



1
Protected
Circuit

16



5A
~
Engine
control
module
(see
also
f
use
28,39)
Heating
andA/C
(IHKR
E36)(see
alsofuse
20,
23,31,
37,
39,
41)

17



10A



Headlights/foglights
(see
also
fuse
11,12,15,23,25,
29,
30)

18
1



15A
1
Fuel
pump

19
1



30A
1
Rear
power
Windows

20



30A



Blowermotor
Heating
andA/C
(IHKR
E36)
(see
also
fuse
16,23,31,
37,
39,
41)
Park
ventilation

21



5A



ABS
(seealsofuse
10,23,27,38,
46,47)
AST
(see
also
fuse
10,26,
27,
38,
46)

22



5A
~



Instrument
illumination
(see
also
f
use
25,
33,37)
Park/taillights
(see
also
fuse
33,
37)

23



5A



ABS
(seealsofuse
10,
21,
27,38,
46)
Headlights/foglights
(see
also
fuse
11,12,15,17,25,
29,
30)
Heated
seats
(see
also
fuse
4)
Heating
andA/C
(IHKR
E36)(see
alsofuse
16,20,31,
37,39,41)
Instrument
cluster
(see
also
f
use
27,31,
46)
Multi-function
clock
(see
also
fuse
26,27,31,
45,46)
On-Board
Computer
(seealso
f
use
11,
12,
27,
31,33,
37,
45,
46)
On-Board
Display
(seealso
fuse
26,27,31,
45,46)
Rear
window
defogger/blower
(see
also
f
use
6)
Turn
signals/hazard
lights
(see
also
f
use
34)

24
I



10A
I



Power
mirrors

25



5A



Headlights/foglights
(see
also
fuse
11,
12,
15,17,23,
29,
30)
Instrument
illumination
(see
also
fuse
22,33,
37)

26



10A



AST
(see
also
fuse
10,21,
27,
38,
46)
Back-up
lights
Centrallocking
(seealsofuse
7,
28,
35)
Electronic
transmission
control
(A4S
310R/Z)
(seealso
tuse
28,
46)
Multi-function
clock
(see
also
fuse
23,
27,31,
45,46)
On-Board
Display
(see
also
fuse
23,27,31,
45,46)
Starting
system
(see
alsofuse
28)

27



5A



ABS
(seealso
fuse
10,
21,
23,38,
46,47)
AST
(see
also
fuse
10,21,
26,
38,
46)
Convertible
roof
(see
also
f
use
7,
35,42,43)
Instrument
cluster
(seealso
f
use
23,
31,
46)
Multi-function
clock
(see
also
fuse
23,26,31,
45,46)
On-Board
Computer
(seealsofuse
11,
12,
23,
26,
31,33,
37,
45,
46)
On-Board
Display
(see
also
f
use
23,31,45,
46)

610-28



ELECTRICAL
COMPONENT
LOCATIONS

Fuses
31-46

k
Lírcoo)]
LE

7a
Maz

Fuses
21-30

Fuse
positions
1-46
in
front
power
distribution
box
Table
f
.
1996
E36
Fuse
Positions

fuse



Rating



Protected
Circuit

1



30A



Power
sunroof
(see
also
fuse
13)

2



15A



Notused
3



30A



Headlight
washer
(also
see
fuse
37)

4



15A



Heated
seats
(seealsofuse
23)

5



30A



Power
seats
(see
also
f
use
40)

6



20A



Rear
window
defogger/blower
(see
also
f
use
23)

7



5A



Central
body
electronics
(ZKE
IV)
(convertible
only)
(see
also
f
use
14,33,
35,
43)
Central
locking
(seealso
fuse
26,28,
35)
Convertible
roof
(seealsofuse
27,35,42,43)
Interiorlights
(also
see
fuse
33,
43)
Rol¡-oven
protection
(see
also
fuse
35,
42,
43)

8
I



15A
I
Horn
9
1



20A
1
Sound
system
(see
also
fuse
44)

10



30A



ABS
(seealsofuse
21,23,
27,38,46,
47)
AST
(see
also
fuse
21,26,27,
38,46)

11



7.5A



Headlights/foglights
(see
also
fuse
12,15,17,23,25,
29,30)
On-Board
Computer
(seealso
fuse
12,23,27,31,33,
37,45,46)

12



7
.5A



Headlights/foglights
(see
also
fuse
11,15,17,
23,
25,
29,30)
On-Board
Computer
(see
also
f
use
11,23,27,
31,
33,37,
45,46)

13
1



5A
1
Power
sunroof
(seealsofuse
1)

14



30A
~
Central
body
electronics
(ZKE
IV)
(see
also
fuse
7,
14,33,35,
43)
Front
power
windows

15



15A



Headlights/foglights
(see
also
fuse
11,12,17,23,25,29,
30)

FUSE
POSITION
TABLES

Fuses
1-20

0013034

Table
f
.
1996
E36
Fuse
Positions

fuse



1
Rating



1
Protected
Circult

16



5A
~
Engine
control
module
(see
also
f
use
28,
39)
Heating
andA/C
(IHKR
E36)(see
also
fuse
20,
23,31,37,39,41,
48)

17



10A



Headlights/foglights
(see
also
f
use
11,12,
15,23,25,29,
30)

18
1



15A
1
Fuel
pump

19
1



30A
1
Rear
power
windows

20



30A



Blower
motor
Heating
andA/C
(IHKR
E36)
(see
also
fuse
16,23,31,37,39,41,
48)
Park
ventilatíon

21



5A



ABS
(seealsofuse
10,23,
27,38,
46,
47)
AST
(see
alsofuse
10,
26,
27,38,
46)

22



5A



Instrument
illumínation
(see
also
f
use
25,33,
37)

23



5A



ABS
(see
also
fuse
10,21,
27,38,
46)
Headlights/foglights
(see
alsofuse
11,12,
15,17,25,29,
30)
Heated
seats
(seealsofuse
4)
Heating
andA/C
(IHKR
E36)(see
also
fuse
16,20,
31,
37,39,
41,48)
Instrument
cluster
(see
alsofuse
27,
31,46)
Multi-function
clock
(see
alsofuse
26,27,31,
45,46)
On-BoardComputen
(seealso
f
use
11,12,27,31,
33,
37,45,
46)
On-Board
Display
(see
alsofuse
26,
27,31,
45,46)
Rear
window
defogger/blower
(see
also
fuse
6)

Turn
signals/hazard
lights
(seealsofuse
34)

24
I



10A
I
Power
mirrors

25



5A



Headlights/foglights
(see
also
fuse
11,
12,15,
17,
23,
29,
30)
Instrument
illumination
(seealso
fuse
22,
33,
37)

26



10A



Airbag
(SRS)
(see
also
fuse
43)
AST
(see
also
f
use
10,21,
27,
38,
46)
Back-up
lights
Central
locking
(seealsofuse
7,
28,
35)
Electronic
transmission
control
(A4S
310R/Z)
(seealso
f
use
28,
46)
Multi-function
clock
(see
alsofuse
23,27,31,
45,46)
On-Board
Display
(see
also
fuse
23,
27,
31,
45,46)
Starting
system
(see
also
fuse
28)
.

27



5A



ABS
(see
also
fuse
10,21,
23,38,
46,
47)
AST
(see
also
fuse
10,
21,
26,38,
46)
Convertible
roof
(see
also
f
use
7,
35,42,
43)
Instrument
cluster
(see
alsofuse
23,
31,46)
Multi-function
clock
(see
alsofuse
23,26,
31,
45,46)
On-Board
Computer
(seealsofuse
11,12,
23,
26,31,33,37,
45,46)
On-Board
Display
(see
also
fuse
23,
31,45,
46)

610-30



ELECTRICAL
COMPONENT
LOCATIONS

Fuses
31-46

v

--------------

15A
I
Horn
Fuses21-30

Fuses
1-20

Fuse
positions
1-46
in
front
power
distribution
box

Tableg
.
1997-1998
E36
Fuse
Positions

fuse



Rating



Protected
Circuit

1



I



30A
I



Power
sunroof

4
1



15A
1
Heated
seats
(see
also
fuse
23)

5
1



30A
1
Power
seats
(see
also
fuse
40)

10



30A



ABS
(see
also
fuse
21,27,38,
46)
AST
(see
alsofuse21,27,
38,
46)

13
I



5A
I
Not
used

FUSE
POSITION
TABLES

0013034

2
I



5A



Engine
controls
DME
M5
.2
(see
also
fuses
16,18,
39,
46)

30A



Wiper/washer
module
(seealso
fuse
36,37,44)

20A
~
Rear
window
defogger/blower
(see
also
f
use23,43)
Antenna
(see
also
fuse
23)

5A
~
Central
locking
(seealso
fuse
28,31,35,
45)
Convertible
roof
(see
also
fuse
24,
27,42,
43,49)
9
1



20A
1
Sound
system
(see
also
fuse
33,43,
44)

11



7
.5A



Headlights/foglights
(see
also
fuse
12,15,
23,
25,29,
30)
On-Board
Computer
(see
also
fuse
12,23,
26,
27,31,33,
37,45,
46)

12



7
.5A



Headlights/foglights
(see
also
fuse
11,15,
23,
25,29,
30)
On-Board
Computer
(see
also
f
use
11,23,
26,27,
31,33,
37,45,
46)

14
I



30A
~
Central
body
electronics
(ZKE
IV)
(see
also
fuse
33,
35,43)
Power
windows
(seealso
f
use
19)

15



15A



Headlights/foglights
(see
alsofuse
11,
12,23,25,
29,
30)

Tableg
.
1997-1998
E36
Fuse
Positions

fuse



1
Rating



1
Protected
Circuit

16



5A



Engíne
control
DME
M5
.2
(see
alsofuse
2,
18,39,
46)
Engine
control
DME
MS
41
.1
(see
also
fuse
18,39,46,
50)
Heating
andA/C
(IHKR
E36)
(see
also
fuse
20,
23,31,39,41,
48)

17
I



10A
1
Not
used

18



15A



Engine
control
DME
M5
.2
(seealso
fuse
2,
16,39,
46)
Engine
control
MS
41.1(seealso
fuse
16,
39,
46,50)

19
1



30A
j
Power
windows
(seealsofuse
14

20



30A



Blowermotor
Heating
andA/C
(IHKR
E36)
(see
also
fuse
16,
23,
31,37,39,
48)
Park
ventilation

21



5A



ABS
(seealso
f
use
10,
27,38,
46)
AST
(see
also
fuse
10,27,38,
46)

22



5A



Instrument
illumination
(see
also
f
use
25,
33,
37)

23



5A



Antenna
(see
also
fuse
6)
Headlights/foglights
(see
also
fuse
11,
12,
15,
25,
29,
30)
Heated
seats
(see
also
fuse
4)
Heating
andA/C
(IHKR
E36)(see
also
fuse
16,
20,
31,39,41,
48)
Instrument
cluster
(seealso
f
use
27,
31,45,
46)
Multi-function
clock
(seealsofuse
26,27,31,
45,46)
On-Board
Computer
(see
also
fuse
11,12,27,
31,
33,37,45,
46)
On-Board
Display
(seealsofuse
26,27,
31,
45,46)
Rear
window
defogger/blower
(see
also
f
use6,43)Turn
signals/hazard
lights
(seealsofuse
34)

24



10A
~
Convertible
roof
(see
also
f
use
7,
27,42,43,
49)
Power
mirrors

25



5A



Headlights/foglights
(seealso
fuse
11,12,
15,23,
29,30)
Instrument
illumination
(seealso
fuse
22,33,
37)

26



10A



Back-up
lights
Electronic
transmission
control
(A4S
310R/Z)
(see
also
f
use
28,
46)
Electronic
transmission
control
(A5S
310Z)
(see
also
fuses
28,46)
Multi-function
clock
(see
also
fuse
23,
27,
31,
45,46)
On-Board
Computer
(see
alsofuse
11,
12,
23,
27,31,33,37,45,
46)

610-32



ELECTRICAL
COMPONENT
LOCATIONS

Tableg
.
1997-1998
E36
Fuse
Positions

fuse



Rating



Protected
Circult

43



5A



Anti-theft
system
(Alpine)
(see
also
f
use47)
Cellular
phone
(seealso
fuse
33)
Central
body
electronics
(ZKE
IV)
(see
alsofuse
14,
33,35)
Convertible
roof
(seealso
fuse
7,
24,
27,
42,49)
Interiorlights
(also
see
fuse
33)
Rear
window
defogger/blower
(see
alsofuse
6,23)
Roll-over
protection
(see
also
fuse
42)
Sound
system
(seealso
fuses
9,
33,
44)

44



15A



Ashtray
light
(seealso
f
uses
32,
33,
37)
Cassette
compartment
light
(seealso
fuses
32,33,
37)
Charging
socket
(seealso
fuses
32,33,
37)
Cigar
lighter
(seealso
fuses
32,33,
37)
Glove
compartment
light
(seealso
f
uses
32,
33,37)
Sound
system
(seealsofuse
9,
33,
43)
Wiper/washer
(seealsofuse
3,
36,
37)

45



7
.5A



Central
locking
(see
also
fuses
7,
28,31,
35)
Drive-away
protection
(EWS
II)
(see
alsofuse
28,
29,31)
Instrument
cluster
(see
also
f
uses
23,27,31,
46)
Multi-function
clock
(see
also
f
use
23,26,27,
31,46)
On-Board
Computer
(see
alsofuse
11,
12,23,
26,27,
31,33,37,
46)
On-Board
Display
(seealsofuse
23,27,31,
46)
Starting
system
(seealso
fuses
28,31)

46



15A



ABS
(see
also
fuse
10,21,27,
38)
AST
(seealsofuse
10,
21,27,
38)
Brake
lights
Cruise
control
(see
also
fuse
28)
Electronic
transmission
control
(A4S
310R)
(see
also
fuse
26,
28)
Electronic
transmission
control
(A5S
310Z)
(see
also
f
use
26,28)
Engine
control
DME
M5
.2
(see
also
fuses
2,
16,18,
39)
Engine
control
DME
MS
41
.1
(seealso
fuses
16,18,39,
50)
Instrument
cluster
(see
also
fuse
23,27,31,
45)
Multi4unction
clock
(see
also
fuse
23,26,27,
31,45)
On-Board
Computer
(seealsofuse
11,
12,23,26,27,
31,
33,37,
45)

47
1



15A
1
Anti-theft
system
(see
also
fuse
43)

48



40A



Heating
and
A/C
(IHKR
E36)(see
also
fuse
16,20,23,
31,
39,
41)

49



20A



Convertible
roof
(see
also
fuses
7,
24,
27,
42,43)

50



5A



Engine
control
DME
MS
41
.1
(seealso
fuses
16,18,39,
46)

FUSE
POSITION
TABLES

WARNING
-

"
Fuse
designations
and
locations
are
subject
to
change
and
may
vary
fromcar
to
car,
depending
on
options
.
If
questions
arise,
please
remember
that
an
authorized
BMW
dealer
is
the
bestsource
for
the
most
accurate
and
up-to-date
information
.

"
Tolocate
fuses
47-50,
refer
to
Fuse
Positions
inthis
repair
group
.

GENERAL

E36
cars
are
equipped
with
integrated
automatic
heating

and
air
conditioning
systems
.
Many
of
the
procedures
given
in

this
repair
group
require
that
the
A/C
refrigerant
charge
be

evacuated
using
specialized
equipment
.
See
A/C
System
Warningsand
Cautions
later
in
this
repair
group
.

HEATER
AND
CONTROLS

Blower
motor,
removing
and
installing

NOTE-

On
6-cylinder
cars,
the
plastic
top
enginecover
and
fuel
rail
covermustbe
removed
.
The
fuel
injectorhamess
re-
taining
screws
must
be
removed
and
the
harness
set
aside
.
The
engine
control
module
(ECM)
cover
must
be
removed,
the
control
unit
connectors
unplugged
and
the
harness
pulled
out
of
the
way
.
See
130
Fuel
Injection
.

1
.
Disconnect
negative
(-)
cable
from
battery
.

2
.
Open
hood
.
Unclip
engine
bulkhead
plenum
grille
at

base
of
windshíeld
and
remove
grille
.
See
Fig
.
1
.

HEATING
AND
AIR
CONDITIONING



640-1

640
Heating
and
Air
Conditioning

GENERAL
.
...
.
....
.
.
.
.
.
.
.
.
.
.......
.
.
.
640-1



Heater
andA/C
air
distribution
motor,

replacing(rotary-knob)
.
.
...
.
.
.
.......
.
640-10

HEATER
AND
CONTROLS
.
.....
.
.
.
.
.
.
.640-1



Rear
Window
Defogger
.
.
.



.
.
.
.
.
.
.
...
.
.
.
640-10
Blower
motor,
removing
and
installing
.
.
.
.
.
.
640-1



Rear
Window
Blower
(convertible
models)
.
.640-10

Blowermotor
resistor
pack,
replacing



.
.
.
.
.
.
640-3



AIR
CONDITIONING
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
640-11
Heater
valve,
replacing
...........
.
.
.
.
.
.
.
640-3

Heater
box,
removing
and
installing
.
.
.
.
.
.
.
.
640-4



A/CSystem
Warnings
and
Cautions
.
.
.
.
.
.
:640-11

Heater
core,
replacing
.....
.
.
:
....
.
.
.
.
.
.
.
640-6



A/C
compressor,
replacing
.
.
::.
:
:
.
.
.
.
.
.
.
.640-12

Heater
core
temperature
sensor,
replacing
.
.
640-7



A/C
Compressor
Clutch
.
.
.
.
.
.
.
:
.
.
.
.
.
.
.
.
.
640-13

Heater
andA/C
Control
Head
.
.
....
.
.....
.
640-7



A/C
condenser,
replacing
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
640-14

Heater
andA/C
control
head,
removing



A/C
receiver/drier,
replacing
.
.
.
.
.
.
.
.
.
.
.
.
.
640-15
and
installing
(rotary-knob)
.
.
....
.
......
640-7



A/C
expansion
valve,

Heater
andA/C
control
head,
removing



removing
and
installing
...
.
.....
.
.
.
.
.
.
.
640-16
and
installing
(digital-display)
.
.....
.
.....
640-8



A/C
evaporator,
removing
and
installing
.
.
..
640-17

Heater
andA/C
control
module,removing



A/C
evaporator
temperature
sensor,

and
installing
(rotary-knob)
.
.
...
.
.
.
.
.
.
.
.
640-8



replacing
.
.
.
.
.
.
..............
.
.
.
.
.
..
640-17

Heater
andA/C
control
module,removing



A/C
microfilter,
replacing
......
.
....
.
.
.
..
640-18

and
installing
(digital-display)
.
...
.
.
.
.
.
...
640-8

Sensor
fan
for
interior
temperature,



TABLES

replacing
.
.
.
....
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
640-9



a
.
Blower
Motor
Test
Values
.........
...
.
.
......
640-3

Heater
andA/C
AirDistribution
Motors
.
.
.
.
.
.
640-9



b
.
Heater
Core
Temperature
Sensor
Test
Values
...
.640-7

c
.
Evaporative
Temperature
Sensor
Test
Values
...
640-17

d
.
A/C
System
Fluid
Capacities
(total)
..
..........
640-18

0012527

Fig
.
1
.
Detach
grille
retaining
clips
(arrows)
and
pull
grille
upward
and
out
of
rubbergasket
.

CAUTION-

Prior
to
disconnectiog
the
battery,
read
the
battery
disconnection
cautionsgiven
at
the
front
of
this
manual
onpage
viii
.

HEATER
AND
CONTROLS

640-2



HEATING
AND
AIR
CONDITIONING

3
.
Remove
wiring
harness
retaining
clip
at
bulkhead
.
Re-

move
screws
retaining
wiring
harness
cover
and
pull

cover
forward
.
See
Fig
.
2
.

0012529

Fig
.
2
.
Ming
harness
cover
screws
at
base
ofwindshield
(arrows)
.

4
.
On
passenger
side,
push
aside
wiring
harness
and
re-

move
two
screws
retaining
plenum
housing
.
See
Fig
.
3
.

Fig
.
3
.



Ríghtside
plenum
retaining
screws
(arrows)
.

VU1L535

5
.
On
driverside,
push
aside
wiring
harness
and
remove

screw
retaining
plenum
.
Pull
plenum
up
and
remove
from
engine
bay
.
See
Fig
.
4
.

6
.
Unclip
blower
motor
housing
cover,
disconnect
control

cable,
and
turn
center
retainer
1
/4
turn
to
remove
cover
.
See
Fig
.
5
.

7
.
Disconnect
electrical
connectors
from
blower
motor
.

8
.
Remove
left
upper
section
of
blower
housingby
detach-
ing
spring
clipsat
edge
of
housing
.
See
Fig
.
6
.

HEATER
AND
CONTROLS

Fig
.
4
.



Remove
screw
at
A
and
pull
air
plenumupward
.

0012534

0012636

Fig
.
5
.



Blower
motor
housing
clips
(A)
;
control
cable
(B)
;
and
center
retainer(C)
.

i
[u6,

Fig
.
6
.



Spring
clips
(arrows)
on
driver
sideof
blower
housing
.

9
.
Release
blower
motor
retaining
strap
andremove
blow-
er
motor
and
fans
fromcowl
opening
.

NOTE-

Twist
and
rotate
blowermotor
assembly
to
facilítate
re-
moval
from
opening
.
If
the
blower
motor
is
to
be
rein-stafled,
use
care
not
to
damage
fan
wheels
during
removal
.
ff
the
blower
motor
fs
to
be
replaced,
cut
offfan
wheels
at
center
to
aid
in
removal
.

10
.
Installation
is
reverse
of
removal
.
When
installing
a
re-
placement
blower
motor,
instan
motor
into
cowlarea
before
installing
fan
wheels
.
Blower
motor
test
specifi-

cations
are
listed
in
Table
a
.

NOTE
-

On
replacementblowermotors
from
BMW,
thefan
wheels
come
unattached
to
aid
in
installation
.
Locatearrow
on
blower
motor
and
instan
fan
wheels
atthis
po-
sition
.
Be
sure
color
coolng
matches
.
Retain
fan
wheels
using
the
new
clips
.
See
an
authorized
BMW
parts
de-
partment
for
the
latest
parts
information
.

Table
a
.
Blower
Motor
Test
Values

Testingvoltage



13
VDC

Operating
voltage



9-15
VDC

Max
.
current
consumption
(approx
.)



12
amps

Maximum
speed



3,600-4,000rpm

Axialplay
(max
.
allowable)



1
.0
mm
(0
.04
in
.)

Blower
motor
resistor
pack,
replacing

The
blower
resistor
pack
is
clipped
into
the
upper
left
side
of
theheater
box
.

1
.
Remove
lower
left
dash
trim
panel
.
See513
Interior

Trim
.

2
.
Working
under
left
(driver's)
side
of
dash,
unclip
and

pulí
out
resistor
pack
from
sideof
heater
box
.
Remove

harness
connector
from
resistor
pack
.
See
Fig
.
7
.

3
.
Installation
is
reverse
of
removal
.

Heater
valve,
replacing

The
two-way
heater
valve
is
located
in
the
rear
of
the
engine

compartment
on
the
driver
side
.
The
solenoid
operated
valves

control
the
coolant
flow
through
the
dual-chamber
heater

core
.

1
.
Drain
engine
coolant
.
See
170
Radiator
and
Cooling

System
.

HEATING
AND
AIR
CONDITIONING



640-
3

uuiGO4I

Fig
.
7
.



Blower
fan
resistor
pack
(black
arrow)
and
resistor
pack
re-
ceptacle
(white
arrow)
below
left
sideof
dash
.

WARNING
-

Allow
the
cooling
system
to
cool
before
opening
ordraining
the
cooling
system
.

2
.
Disconnect
hoses
and
harness
connector
at
heater
valve
.
See
Fig
.
8
.

001[ó38b

Fig
.
S
.



Hoses
(A)
and
harnessconnector
(B)
at
heatervalve
.

3
.
Carefully
pull
heater
valve
out
of
rubber
mounting
and

pull
up
and
out
of
engine
compartment
.

4
.
Installation
is
reverse
of
removal
.
Use
new
hose

clamps
.
Inspect
hoses
and
replace
asnecessary
.

HEATER
AND
CONTROLS

640-4



HEATING
AND
AIR
CONDITIONING

Heater
box,
removing
and
installing

The
heater
box,
located
underneath
thecenter
of
the
dash-

board,
houses
theheater
core,
the
A/C
evaporator,
and
asso-

ciated
sensors
and
actuators
.
Removal
of
theheater
box

requires
that
the
A/C
refrigerant
be
discharged
.

CAUTION-

"
Removing
the
heater
box
requires
evacuating
the
AIC
system
.
DO
NOT
attempt
this
procedure
without
proper
tools
and
training
.

"
Any
person
who
services
a
motor
vehicle
air
con-

ditioner
must,
by
law,
be
properly
trained
and
cer-
tified,
and
use
approved
refrigerant
recycling
equipment
.
Technicians
must
complete
an
EPA-
approved
recycling
course
to
be
certified
UU12639

Fig
.
10
.
Heater
core
mounting
nuts
at
left
sideof
bulkhead
(arrow)
.

1
.
Drain
engine
coolant
.
See
170
Radiator
and
Cooling



wiper
assembly
shown
removed
for
clarity
.

System
.

2
.
Remove
complete
dashboard
.
See513
Interior
Trim
.

3
.
Remove
blower
motoras
described
earlier
.

4
.
Remove
nut
retaining
water
hose
flange
to
rear
bulk-
head
.
I'ush
flange
to
one
side
.
See
Fig
.
9
.

Fig
.
9
.



Nut
retaining
coolant
hose
flangeat
bulkhead
(arrow)
.

NOTE-

Clear
any
remaining
coolant
from
the
heater
core
by
blowing
compressed
air
finto
the
coolant
feed
hose
.

HEATER
AND
CONTROLS

0012638b

6
.
Cut
wire
tie
holding
wire
harness
to
heater
box
and
dis-

connect
cable
harness
connector
from
heater
box
.
See

Fig
.
11
.

0012647

Fig
.
11
.
Harness
connectors
(A)
and
cable
tie
(B)
at
heaterbox,
under
driver
side
dash
.

7
.
Followingmanufacturer's
instructions,
connect
ap-

proved
refrigerant
recovery/recycling/recharging
unitto

A/C
system
and
discharge
system
.

8
.
Unbolt
A/C
refrigerantlines
flange
from
engine
bay
bulkhead
.
See
Fig
.
12
.

9
.
On
models
with
rotary-knob
A/C
control
head
:
Discon-
5
.
Remove
nuts
from
heater
box
retaining
bracket
on
en-



nect
wiring
harness
connectors
to
A/C
control
module
gine
bulkhead
left
side
.
See
Fig
.
10
.
Repeat
procedure



in
center
console
and
remove
module
.
See
Fig
.
13
.
for
right
side
nuts
.