Fuel valve BMW 318i 1996 E36 Owner's Guide
Page 178 of 759
130-
3
2
FUEL
INJECTION
Pin
1
Signal
1
Component/function
1
Signal
1
output
Fuel
pump
relay
control
Fuel
pump
relay
switches
with
engine
running
or
cranking
(crankshaft
position
signal
must
be
present
for
relay
switchover)
2
output
Idle
speed
control
valve
Pulsed
ground-close
signal
(seealso
pin
29)
3
output
Fuel
ínjectorcontrol,
cyl
.
5
Pulsed
ground
(injection
pulsewidth
in
ms)
cyl
.
5
4
output
Fuel
injectorcontrol,
cyl
.
6
Pulsed
ground
(injection
pulsewidth
in
ms)
cyl
.
6
5
output
Fuel
injectorcontrol,
cyl
.
4
Pulsed
ground
(injection
pulsewidth
in
ms)
cyl
.
4
6
ground
Ground
Ground
for
fuel
injector
output
stage
7
output
Camshaft
actuator
(VANOS
solenoid)
control
Camshaft
actuator
(VANOS
solenoid)
8
output
Check
Engine
Instrument
cluster,
Check
Engine
lamp
9
vacant
-
-
10
vacant
-
-
11
output
Throttle
position
Throttle
angle
signal
to
A/T
control
module
12
vacant
-
-
13
input
Oxygen
sensor
Oxygen
sensor
signal
(0-1
VDC
fluctuating
with
engine
running)
14
input
Mass
air
flow
sensor
Mass
air
flow
sensor
15
ground
Ground
Ground
16
input
Crankshaft
position/rpm
sensor
Voltage
pulse
(VAC)
between
pin
16
and
43
(crank
position/rpm
sensor)
17
input
Camshaft
position
sensor
Halleffect
camshaft
sensor
18
vacant
-
-
19
vacant
-
-
20
vacant
-
-
21
vacant
-
-
22
vacant
-
-
23
output
Ignition
coil
control,
cyl
.
4
Ignition
coil
4
24
output
Ignition
coil
control,
cyl
.
6
Ignition
coil
6
25
output
Ignition
coil
control,
cyl
.
5
Ignition
coil
5
26
input
Power
supply
(terminal
30)
Battery
voltage(B+)
at
all
times
27
input
Main
relay
control
Main
relayactivation
(terminal
85)
28
ground
Ground
Ground
for
ECM
and
sensor
shielding
29
output
Idle
speed
control
valve
Pulsed
ground-open
signal
(seealsopin
2)
30
vacant
-
-
31
output
Fuel
injectorcontrol,
cyl
.
3
Injection
pulse
wicith
in
ms-cyl
.
3
32
output
Fuel
injectorcontrol,
cyl
.
2
Injection
pulse
wicith
in
ms-cyl
.
2
33
output
Fuel
injectorcontrol,
cyl
.
1
Injection
pulsewidth
in
ms-cyl
.
1
34
ground
Ground
Ground
for
remaining
output
stages
35
vacant
-
-
36
output
Evaporative
purge
valve
control
37
vacant
-
-
38
output
Oxygen
sensor
heater
relay
control
Oxygen
sensor
heater
relay
switchover
(terminal
85)
39
vacant
-
-
40
ground
Oxygen
sensor
Oxygen
sensor
signal
ground
41
input
Mass
air
flow
sensor
Mass
air
flow
voltage
signal
42
input
Vehicle
speed
Vehicle
speed
signal
from
instrument
cluster
43
input
Crankshaft
position/rpm
sensor
Voltage
pulse
(VAC)
between
pin16
and
43
44
ground
Ground
Ground
for
intake
air
temp
.
sensor,
engine
coolant
temp
.
sensor,
throttle
position
sensor
ECM
PIN
ASSIGNMENTS
Table
j
.
ECM
Pin
Assignment-Bosch
DME
M3
.3
.1
Page 180 of 759
130-
34
FUEL
INJECTION
Pin
i
Signal
1
Component/function
1
Signal
1
output
Oxygen
sensor
(monitoring
sensor)heater
Oxygen
sensor
heater
control
(switched
ground)
2
output
Idle
speed
control
valve
Pulsed
ground-close
signal
(see
also
pin
29)
3
output
Fuel
injector
control,
cyl
.
1
Pulsed
ground
(injection
pulsewidth
in
ms)
cyl
.
1
4
output
Fuel
injector
control,
cyl
.
4
Pulsed
ground
(injection
pulse
width
in
ms)
cyl
.
4
5
not
used
-
-
6
ground
Ground
Ground
for
fuel
injector
output
stage
7
not
used
-
8
1
output
1
Check
Engine
1
Instrument
cluster,
Check
Engine
lamp
9
not
used
-
-
10
input
Electronic
immobilizer
control
(EWS
II)
Electronic
immobilizer
control
(EWS
II)
module
11
output
Automatic
climate
control
Automatic
climate
control,
to
evaporator
controlier
12
not
used
-
-
13
not
used
-
-
14
not
used
-
-
15
not
used
-
-
16
input
Intake
air
temperature
Intake
air
temperature
Signal
17
input
Mass
air
flow
meter
Intake
air
signal
18
not
used
-
-
19
input
Oxygen
sensor
(monitoring
sensor)
Oxygen
sensor
control
20
output
Crankshaft/rpm
sensor
Crankshaft/rpm
sensor
control
21
input
Camshaft
position
sensor
Camshaft
position
signal
22
output
Ignition
coil
control,
cyl
.
3
Primary
signal,
ignitioncoil
3
23
output
Ignition
coil
control,
cyl
.
4
Primary
signal,
ignitioncoil
4
24
not
used
-
-
25
not
used
-
-
26
input
Power
supply
(terminal
30)
Battery
voltage
(B+)
at
al¡
times
27
input
Main
relay
control
Main
relay
activation
(terminal
85)
28
ground
Ground
Ground
for
ECM
and
sensor
shielding
29
output
Idle
speed
control
valve
Pulsed
ground-open
signal
(seealsopin
2)
30
output
Oxygen
sensor
(monitoring
sensor)
heater
Oxygen
sensor
heater
control
(switched
ground)
31
output
Fuel
injectorcontrol,
cyl
.
3
Pulsed
ground
(injection
pulsewidth
in
ms)
cyl
.
3
32
output
Fuel
injector
control,
cyl
.
2
Pulsed
ground
(injection
pulsewidth
in
ms)
cyl
.
2
33
I
not
used
40
input
Knock
sensor
#2
(cyl
.
3,4)
Knock
sensor
#2
signal
41
not
used
-
-
42
input
Vehicle
speed
Vehicle
speed
signal
from
instrument
cluster
43
not
used
-
-
44
output
Throttleposition
sensor
(TPS)
Throttleposition
reference
signal
ECM
PIN
ASSIGNMENTS
Table
k
.
ECM
Pin
Assignment-Bosch
DME
M5
.2
34
ground
Ground
Ground
for
ECM/
output
stages
35
not
used
-
-
36
input
A/C
compressor
relay
A/C
compressor
relay
control
37
not
used
-
-
38
not
used
-
-
39
not
used
-
-
Page 181 of 759
Table
k
.
ECM
Pin
Assignment-Bosch
DME
M5
.2
(continued)
Pin
I
Signal
1
Componentltunction
1
Signal
45
I
output
I
Mass
air
flow
meter
I
Intake
airSignal
46
output
Oxygen
sensor
(monitoring
sensor)
Oxygen
sensor
control
47
not
used
-
48
not
used
-
49
output
Ignition
coil
control,
cyl
.
1
Primary
signal,
ignition
coil
1
50
output
Ignition
coil
control,
cyl
.
2
Primary
signal,
ignition
coil
2
51
not
used
-
52
not
used
-
53
input
Throttleposition
sensor
Throttleposition
Signal
54
input
Power
supply
Batteryvoltage
from
main
relay
(terminal
87)
55
ground
Ground
Ground
for
ECM
56
input
Power
supply
(terminal
15)
Battery
voltage
with
key
on
or
engine
running
57
output
Activate
cooling
fan
(man
.
trans
.)
control
Normal
speed
relay
58
not
used
-
-
59
not
used
-
-
60
input
Programming
voltage
Programming
voltage
via
data
link
connector,
pin
18
61
output
Evaporative
emissionvalve
Evaporative
emission
valve
control
62
vacant
-
-
63
output
Fuel
pump
relay
Fuel
pump
relay
control
64
not
used
-
65
not
used
-
-
66
not
used
-
-
67
not
used
-
-
68
input
Signal
above
80°C(man
.
tran
.)
Double
temperature
switch
69
input
Automatic
climate
control
Automatíc
climate
control
70
input
Knock
sensor
#1
(cyl
.
1,2)
Knock
sensor
#1
Signal
71
ground
Ground
Ground
for
analog
signals
and
knock
sensors
72
not
used
-
-
73
not
used
-
-
74
input
Engine
coolant
temperature
sensor
Engine
coolant
temperatura
Signal
75
not
used
-
-
76
not
used
-
-
77
output
Oxygen
sensor
(regulating
sensor)
Oxygen
sensor
control
78
input
Crankshaft/rpm
sensor
Crankshaft
position/rpmSignal
79
input
ABS
or
traction
control
ABS
or
AST
control
80
input
Engine
speed
Engine
speed
Signal
81
not
used
-
-
82
not
used
-
-
FUEL
INJECTION
130-
3
5
83
input
On-board
computar
From
On-boardcomputer
(terminal
4)
84
not
used
-
-
85
not
used
-
-
86
not
used
-
-
87
input
Diagnostic
connector
(RxD)
Diagnostic
RxD
(receive)signal
to
pin
15
in
Data
link
connector
88
output
I
Diagnostic
connector
(TxD)
Diagnostic
TxD
(transmit)
signal
to
pin
17in
Data
link
connector
ECM
PIN
ASSIGNMENTS
Page 182 of 759
130-
3
6
FUEL
INJECTION
Pin
1
Signal
1
Componentffunction
1
Signal
1
output
Ignition
coil
control,
cyl
.
2
Primary
signal,
ignition
coil
2
2
output
Ignition
coil
control,
cyl
.
4
Primary
signal,
ignitioncoil
4
3
output
Ignition
coil
control,
cyl
.
6
Primary
signal,
ignition
coil
6
4
ground
Ground
Ground
5
output
Fuel
injectorcontrol,
cyl
.
2
Pulsed
ground
(injection
pulse
width
in
ms)
cyl
.
2
6
output
Fuel
injectorcontrol,
cyl
.
1
Pulsed
ground
(injection
pulse
width
in
ms)
cyl
.
1
7
output
Mass
air
flow
meter
Mass
air
meter
signal
8
input
Mass
air
flow
meter
Mass
air
meter
signal
9
output
Instrument
cluster
Fuel
consumption
signal
10
output
Engine
coolant
temperature
(ECT)
sensor
ECT
signal
11
output
Fueltankpressure
sensor
Fueltankpressure
sensor
control
12
input
Throttleposition
sensor
(TPS)
Throttleposition
signal
13
-
14
input
Intake
air
temperature
(IAT)
sensor
Intake
air
temperature
signal
15
Traction
control
AST
module
16
input
Automatic
climate
control
Automatic
climate
control
17
18
input
Electronic
immobilizer
control
(EWS
II)
Electronic
immobilizer
control
(EWS
II)
module
19
Automatic
climate
control
Automatic
climate
control
20
-
Instrument
cluster
Instrument
cluster
21
output
Camshaft
actuator
(VANOS
solenoid)
control
Camshaft
actuator
(VANOS
solenoid),
switched
ground
22
output
Fuel
injectorcontrol,
cyl
.
3
Pulsed
ground
(injection
pulse
width
in
ms)
cyl
.
3
23
Fuel
injectorcontrol,
cyl
.
6
Pulsed
ground
(injection
pulse
width
in
ms)
cyl
.
6
24
Fuel
injectorcontrol,
cyl
.
4
Pulsed
ground
(injection
pulse
width
in
ms)
cyl
.
4
25
output
Oxygen
sensor
heater
control
Oxygen
sensor
heater
ground
26
input
Power
supply
(terminal
30)
Battery
voltage(B+)
at
all
times
27
output
Idle
speed
control
valve
Pulsed
ground-open
signal
(see
also
pin
53)
28
ground
Ground
Ground
29
output
Ignition
coil
control,
cyl
.
1
Primary
signal,
ignition
coíl
1
30
output
Ignition
coil
control,
cyl
.
3
Primary
signal,
ignition
coil
3
31
output
Ignition
coil
control,
cyl
.
5
Primary
signal,
ignition
coil
5
32
ground
Ground
Ground
33
output
Fuel
injector
control,
cyl
.
5
Pulsedground
(injection
pulsewidth
in
ms)
cyl
.
5
34
ground
Ground
Ground
35
output
Secondary
air
injection
Secondary
air
injection
pump
relay
control
36
output
Engine
speed
output
Engine
speed
signal
37
-
38
ground
Knock
sensor
Shielding
for
knock
sensors
39
output
Intake
air
temperature
sensor
(IAT
Sensor)
Voltagesupply
to
IAT
sensor
and
ECT
sensorEngine
coolant
temperature
(ECT)
sensor
40
output
Crankshaft
position
sensor
(Hall
effect)
Crankshaft
position
sensor
control
41
ground
Camshaft
position
(CMP)
sensor
Shielding
for
CMP
sensor
42
output
Throttle
position
sensor
(TPS)
TPS
ground
43
input
Camshaft
position/rpm
sensor
Camshaft
position/rpm
sensor
control
44
output
Throttle
position
sensor
(TPS)
Voltagesupply
to
TPS
(5
VDC)
45
Traction
control
AST
module
46
-
Instrument
cluster
Instrument
cluster
ECM
PIN
ASSIGNMENTS
Table
I.
ECM
Pin
Assignment-Siemens
DME
MS
41
.1
Page 183 of 759
Table
I
.
ECM
Pin
Assignment-Siemens
DME
MS
41
.1
(continued)
Pin
I
Signal
I
Component/function
1
Signal
FUEL
INJECTION
130-
37
47
-
48
input
Crankshaft
position
sensor
(Hall
effect)
Crankshaft
position
sensor
control
49
input
Power
supply
(terminal
15)
Batteryvoltage
with
key
onor
engine
running
50
output
Solenoid
valve
(running
losses)
Running
losses
51
output
Carbon
canister
valve
Carbon
canister
valve
control
52vacant
-
53
output
Idle
speed
control
valve
Pulsed
ground-close
signal
(seealsopin29)
54
input
Power
supply
Battery
voltagefrom
main
relay
(terminal
87)
55
vacant
-
56
-
57
input
Knock
sensor
(cyl
.
1-3)
Knock
sensor
input
Signal
58
output
Knock
sensor
(cyl
.
1-3)
Knock
sensor
control
59
input
Knock
sensor
(cyl
.
4-6)
Knock
sensor
input
Signal
60
input/output
Diagnostic
connector
(TxD)
Diagnostic
TxD
(transmit)
signal
to
pin
18
in
Data
link
connector
61
output
Oxygen
sensor
heater
(monitoring
sensor)
Oxygen
sensor
heater
ground
62
output
Secondary
air
injection
Secondary
air
injection
control
valve
63
output
Knock
sensor
(cyl
.
4-6)
Knock
sensor
control
64
input
Camshaft
position/rpm
sensor
Camshaft
position/rpm
sensor
control
65
input
Camshaft
position/rpm
sensor
Camshaft
position/rpm
sensor
control
66
-
67
output
Oxygen
sensor
Oxygen
sensor
reference
voltage
68
output
Evaporative
purge
valve
control
Pulsed
ground
with
engine
at
normal
temperature
and
varyingengine
load
69
output
Fuel
pump
relay
control
Fuel
pump
relay
switches
with
engine
runningorcranking
(crankshaft
position
signal
must
be
present
for
relay
switchover)
70
vacant
-
-
71
output
Oxygen
sensor
heater
(regulating
sensor)
Oxygen
sensor
heater
ground
72
output
Oxygen
sensor
(monitoring
sensor)
Oxygen
sensor
referencevoltage
73
input
Main
relay
control
Main
relay
activation
(terminal
85)
74
output
A/C
compressor
control
A/C
compressor
relay
control
75
input
Oxygen
sensor
Oxygen
sensor
signal
76
not
used
-
-
77
input
Oxygen
sensor
(regulating
sensor)
Oxygen
sensor
signal
78
input
Oxygen
sensor
(monitoring
sensor)
Oxygen
sensor
signal
79
output
Oxygen
sensor
(regulating
sensor)
Oxygen
sensor
referencevoltage
80
Traction
control
AST
module
81
Traction
control
AST
module
82
Traction
control
AST
module
83
output
Crankshaft
position
sensor
(Hall
effect)
Crankshaft
position
sensor
control
84
vacant
-
-
85
output
Automatic
transmission
Automatic
transmission
control
module
86
input
Automatic
transmission
Automatic
transmissíon
control
module
87
input
Power
supply
Battery
voltage
from
main
relay
(terminal
87)
88
input/output
Diagnostic
connector
(TxD)
Diagnostic
TxD
(transmit)
signal
to
pin
17
in
Data
link
connector
ECM
PIN
ASSIGNMENTS
Page 188 of 759
160-
4
FUEL
TANK
AND
FUEL
PUMP
Fig
.
4
.
Pinch
off
supply
and
retum
fuel
hoses
(arrows)
before
dis-
connecting
from
rigid
metal
lines
.
0013143
Fig
.
5
.
After
removing
exhaustsystem,
remove
heat
shield
screws
(arrows)
and
heat
shield
.
9
.
Working
underneath
car,
loosen
hose
clamp
and
dis-
connect
filler
hose
.
10
.
Support
tank
from
below
.
Remove
tank
strap
mounting
bolts
.
Lower
and
remove
tank,
disconnecting
right
side
TheE36
model
uses
a
two-lobed
fuel
tank
and
each
lobeof
vent
and
other
hoses/electrical
connectors
as
neces-
the
tank
has
its
own
fuel
level
sending
unit
.
sary
.
11
.
Installation
is
reverse
of
removal
.
"
Always
use
new
seals,
gaskets,
O-rings,
and
hose
clamps
.
"
Inspect
hoses
and
replace
any
that
are
chafed,
dried
outor
cracked
.
"
Inspect
heat
shield
and
replace
if
corroded
.
"
Inspect
rubber
buffers
and
liners
on
fuel
tank,
support
straps
and
on
underside
of
body
.
Replace
rubber
parts
that
are
hardened
or
damaged
.
FUEL
LEVEL
SENDERS
CAUTION-
"
Before
starting
the
engine,
fill
the
fuel
tank
with
at
least
1.5
gallons
(5
liters)
of
fuel
to
prevent
damaging
a
dry
fuel
pump
.
"
If
the
filler
neck
has
been
removed
from
the
body,
be
sure
toreattach
theneck's
grounding
screw
(where
applicable)
.
Check
electrical
resistance
between
the
ground
tab
and
wheel
hub
.
The
re-
sistance
shouldbeno
higher
than
0
.6
ohms
.
Tightening
Torques
"
Fuel
tank
to
body
.............
...
23
Nm
(17
ft-Ib)
"
Hose
clamps
(10
mm-16
mm
día
.)
..
2
.0
Nm
(18
in-lb)
Fuel
Tank
Evaporative
Control
System
The
fuel
tank
evaporative
control
system
is
used
to
vent
the
fuel
tank
to
a
charcoal
canister,
which
is
then
purgedby
en-
gine
vacuum
during
normal
engine
operatíon
.
This
controls
emission
of
raw
hydrocarbons
(fuel)
to
the
atmosphere
.
See
Fig
.
1
.
A
fuel
expansion
tank,
located
under
the
right
rear
fender,
traps
overflow
fuel
and
incorporates
extra
fuel
tank
plumbing
.
Startingwith
1996
models,
OBD
II
standards
require
that
the
fuel
tank
evaporative
control
system
be
monitored
for
leaks
.
This
is
accomplished
usingthe
fuel
tankpressuresen-
sor,
the
ventshut
off
valve,
and
the
evaporative
purge
valve
.
NOTE-
On
most
early
cars(1992-1995),
the
charcoal
canister
is
in
the
engine
compartment
.
On
latercars,
the
char-
coal
canister
is
under
the
spare
tire
in
the
luggage
com-
partment
.
FUEL
LEVEL
SENDERS
The
right
side
fuel
leve¡
sender
is
integrated
with
the
fuel
pump
.
Each
senderhas
a
float
connected
to
a
variable
resis-
tance
for
fuel
leve¡
.
When
replacing
the
sender/pump
assem-
bly
always
replace
hose
clamps,gaskets
and
O-rings
.
WARNING
-
When
removing
the
fuel
level
sender
or
the
fuel
pump,
the
fuel
tank
should
be
emptied
.
Page 193 of 759
NOTE-
NOTE
-
On
1996
and
later
4-cylinder
cars,
use
BMW
special
"
Use
BMW
pressure
gauge
Part
No
.
133
060,or
an
tool
13
6051
(hose
with
quick
release
coupling)
toat-
equivalent
.
The
fuel
pressure
gauge
should
have
a
tach
pressure
gauge
to
Shraeder
valve
fitting
on
top
of
rangeof
0
to
5bar
(0
to
75
psi)
and
mustbe
securely
the
M44
fuel
rail
.
See
Fig
.
13
.
connected
to
prevent
it
from
coming
loose
under
pres-
sure
.
u012503a
Fig
.
13
.
Fuel
rail
showing
location
of
Shrader
valve
fitting
on
M44
en-
gine
(arrow)
.
Later
model
6-cylinder
fuel
systems
require
BMW
specíal
tool
16
1
050
to
release
fittings
and
connect
the
fuel
gauge
.
See
Fig
.
14
.
0012699
Fig
.
14
.
Fuel
lines
at
rear
of
íntake
manifold
on
M52
engine
.
Use
BMW
special
tool
16
1
050
to
release
fittings
.
If
the
special
tools
arenot
available,
a
length
offuel
line
and
a
T-fitting
can
be
installed
tothe
inlet
fuel
line
and
connected
to
a
fuel
gauge
.
FUEL
TANK
AND
FUEL
PUMP
160-
9
"
On
cars
with
6-cylinder
engine,
thetop
left-side
en-
Bine
cover
will
have
to
be
removed
to
access
the
fuel
rail
.
System
pressure,
testing
System
pressure
is
the
pressure
created
by
the
fuel
pump
and
maintained
by
the
pressure
regulator
.
See
Fig
.
15
.
Sys-
tem
pressure
is
not
adjustable
.
1
.
Remove
fuel
tank
filler
cap
.
Fig
.
15
.
Fuel
pressure
regulator
.
Fuel
pressure
deflects
diaphragm
to
retum
fuel
to
tank
when
pressure
reaches
desired
limit
.
CA
UTION-
The
fuel
pump
is
capable
of
developing
a
higher
pressure
than
that
regulated
by
the
pressure
reg-
ulator
.
In
the
event
the
fuel
pump
check
valve
is
faulty
(stuck
closed),
make
sure
the
fuel
pressure
does
not
rise
aboye
6
.0
bar(87
psi)
.
Damage
to
the
fuel
fines
or
fuel
system
components
could
re-
sult
.
2
.
Connect
in-fine
a
Tfitting
and
fuel
pressure
gauge
to
outlet
hose
atfuel
pump
.
FUEL
PUMP
Page 399 of 759
Tablea
.
E36
Component
Locations
Component
Model
Year
Location
Refer
to
Engine
Compartment
Light
Switch
1993-1996
Over
right
headlight
assembly
Fig
.
7
.
Engine
Control
Module
(ECM)
1992-1998
Right
rear
enginecompartment,
behind
bulkhead
panel
Fig
.
7
.
Engine
Control
Module
(System)
1992-1998
I
Power
distribution
box
Fig
.
2
.
Relay
Engine
Coolant
Leve¡
Sensor
1
1992-1998
1
Left
front
of
enginecompartment,
radiator
coolant
reservoir
Engine
Coolant
Temperature
1992-1998
I
Left
front
of
engine
under
intake
manifold
I
Fig
.
19
.
Sensor
Fig
.
20
.
Evaporative
Emission
Valve
1992-1998
Left
side
strut
Power
area
Evaporator
Temperature
Sensor
1992-1998
Left
side
of
heater
box
EWS
II
Control
Module
1/1995
-
1998
Behind
glove
compartment
Fig
.
8
.
Fig
.
9
.
EWS
II
Ring
Antenna
1
1/1995
-
1998
1
At
ignition
cylinder
EWS
II
Transmitter
Module
1/1995
-
1998
Right
side
of
steering
column
in
auxiliaryrelay
panel
Fig
.
3
.
Exhaust
Gas
Flap
Valve
1996-1998
Left
rear
muffler
area
Flasher
Relay
1992-1998
Power
distribution
box
Fig
.
2
.
Foglight
Relay
1
1992-1998
1
Power
distribution
box
1
Fig
.
2
.
Fresh
Air
FlapActuator
1
1992
1
Right
side
of
heater
box
Fresh
Air
FlapActuator
1
1993-1995
1
Below
right
side
heater
box
Fresh
Air
FlapActuator
1
1996-1998
Below
left
side
heater
box
Fuel
Injectors
1992
-
1998
Top
left
side
of
engine
Fuel
Leve¡
Sensor,
Left
1
1992-1998
/
Under
left
side
of
rear
seat
infuel
tank
Fuel
Leve¡
Sensor,
Right
1
1992-1998
1
Under
right
side
of
rear
seat
in
fuel
tank
1
Fig
.
28
.
Fuel
Pump
1
1992-1998
1
Under
right
side
of
rear
seat
in
fuel
tank
1
Fig
.
28
.
Fuel
Pump
Relay
1
1992-1998
1
Power
distribution
box
1
Fig
.
2
.
Fuel
Pump/Start
Identification
Relay
1994
-
1996
Power
distribution
box
Fuel
Tank
Pressure
Sensor
1
1997-1998
1
Right
rear
wheel
well
behind
trim
liner
ELECTRICAL
COMPONENT
LOCATIONS
610-13
Fuse
andRelay
x(Power
11992-1998
I
Left
side
of
engine
compartment
I
Fig
.
2
.
Distribution
Box
Fig
.
7
Fig
.
10
.
Gas
Filler
LockMotor
1992-1998
Right
side
of
luggage
compartment
Gear
Position/Neutral
Safety
Switch
1992-1998
Next
to
gear
shift
lever
in
center
console
Fig
.
29
.
(Automatic
Transmission
Range
Switch)
Glove
Compartment
Lock
Motor
1994-1998
Behind
glove
compartment
Grounds
G
100
1995-1998
Front
of
left
front
fender
(headlights)
Fig
.
22
.
G
101
1992-1998
Front
of
right
front
fender
Continued
COMPONENT
LOCATIONS
Page 447 of 759
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
Page 526 of 759
ELE-42
ELECTRICAL
WIRING
DIAGRAMS
BC321
IGNITION
HEATED
__
COILS
HEATED
OXYGEN
ENGINE
(
SHIELD
I
IOXVGEN
II
SENBOR
I
(
CONTROL
I
(SENSOR
-~
SHIELD
I
(
MODULE
I
¢~
I
_I
(DME)
CONTROL
HEATED
I
(MODULE
I
(OXYGEN
I
_-J(OME)
ISENSOR2
0-0
G103
(M3CANADA)
IGNITION
CRANKSHAFT
I
COILS
I
I
POSITIONIRPM
SHIELD
k=__SENSOR
-
SHIELD
I
ENGINE
I-
CONTROL
I
I
MODULE
SRN
IL
1
G123
(3251)
ENGINE
I
(CONTROL
I
(MODULE
I
_
I
(DME)
BRNIORG
BRN/ORG
BRN
3
G119
(3201
.
3251
.
M3
CANADA)
Ground
Distribution
1994-95
Except
318ti
(3
of
5)
HEATED
(OXYGENSENSOR,--
SHIELD
F
_~
HEATED
(OXYGEN
NCA~
_
_~
SENSOR
--
SHIELD
---
I
VARIABLE
CAMSHAFT(CONTROL
I
I
MODULE
----
(VANOS)
CRANKSHAFT
CRANKSHAFT
POSITION/RPM
SENSOR
---~
SHIELD
CAMSHAFT
POSITION
I
I
AIR
PUMP
CAMSHAFT
POSITION/RPM
I
POSITION_
_
I
I
HOT
__
SENSOR
_
SENSOR
FILM
-~SHIELD
-~
SHIELD_
I
I
AIR
M<
I
I
MASS
z
-
--
ETER
m
SENSOR
1
SHIELD
SENSOR
1
SHIELD
-
SENSOR
METER
I
(DME)
_~
SHIELD
19
3y
1Y
__
I
-
I
I
BT
_
I
_
<
557
By
347
287
T
oI
RESISTOR
BRN/I
ORG
_
SENSOR
---~
SHIELD
I
II
v
I
I
(CHANGE-
I
I
19
OVER
I
I
VALVE
_I
m
F---D,SENSOR2
I
(VARIABLE
I
(VARIABLESHIELD
CAMSHAFT
CAMSHAFTS
I
I
(CONTROL
I
(CONTROL
I
-
ISENSORI
I
-
I3ENSOR2
SENSOR2
I
SHIELD
1
GROUND
HEATED
TRANSMISSION
HOT
HALL
I
(
OXYGEN
I
(CONTROL_
I
(
FILM
I(
EFFECT
CRANKSHAFT
I;
SENSOR
I
(MODULE
I
(AIR
I
(CAMSHAFT
POSITION/RPM
I
(EGS)I
MASS
I
I
SENSOR
._
II
(SHIELD
I
FUEL
PUMPf
START
I
I
IDENTIFICATION
I
v
I
RELAY
197
L
DAN
TA
K
I
oICONNECTOR
DATA
LINK
CONNECTOR
I
CYL1
(
ICYL3
I
CYL5
I
(ENGINE
I
(CRUISE
I
(INSTRUMENT
I
(
WIPER/
I
BODY
IGNITION
IGNITION
IGNITION
ONTROL
CONTROL
CLUSTER
WASHER
ELECTRONICS
I
;
COIL
I
(
COIL
I
(
COIL
I
IC
MODULE
I
(
MODULE
I
I
I
(
MODULE
I
(
CONTROL
I
_I
I
_I
I
_I
I
-
I
(DME)
I
_
I
(CANADA)
MODULE
2
2
2
1565
17
26
25
B
CYL2
CYL4
CYLS
U
o
I
(
IGNITION
m
I
(
IGNITION
z
I
(
IGNITION
I
(
COIL
I
(
COIL
I
(
COIL
CRASH
WIPER/
ON
-BOARD
I
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CONTROL
rt
WASHER
O
COMPUTER
I
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I
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MODULE
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.
.
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_
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I)
I
-
I
SENSOR
2
Y
USA)
-
,