window BMW 318ti 1999 E36 Electrical Troubleshooting Manual



 
Pin Assignments

 

E = Input, A = Output, M = Ground X11250
6-Pins, black
X1327410-Pins, black
X11250
Pin Type Description/Function Connection
1
EAir recirculation signalBlower switch
2MGroundGround point
3EFunction signalIHKS switch, engine control module (DME)
4EAir recirculation signalBlower switch
5EPressure signalPressure switch
6EEvaporative temperatureEvaporative temperature sensor
X13274
Pin Type Description/Function Connection
1
MGroundGround point
2Not used
3Not used
4EAir-recirculation signalBlower switch
5Not used
6ETerminal 58gLight switch
7ETerminal 15Front power distribution box, fuse 23
8AAir recirculation signalFresh air recirculation motor
9AFunction signalIHKS-control module, engine control
module (DME)
10ARear defogger signalRear window defogger relay




COMPONENT LOCATION CHART






 

COMP.8500.0 7100.0LOCATION DESCRIPTION
H27 . . LEFT BACK UP LIGHT . . . . . . . . . . . . . . LEFT LUGGAGE COMPARTMENT LIGHT ASSEMBLY

H28 . .

RIGHT BACK UP LIGHT . . . . . . . . . . . . .

RIGHT LUGGAGE COMPARTMENT LIGHT ASSEMBLY




H30 . . RIGHT TAIL LIGHT . . . . . . . . . . . . . . . . . . RIGHT LUGGAGE COMPARTMENT LIGHT ASSEMBLY
H31 . . RIGHT BRAKE LIGHT . . . . . . . . . . . . . . . RIGHT LUGGAGE COMPARTMENT LIGHT ASSEMBLY

H34 . .
HIGH LEVEL STOP LIGHT . . . . . . . . . . .
at back of rear window shelf



H37 . .

LEFT TAIL LIGHT . . . . . . . . . . . . . . . . . . .

LEFT LUGGAGE COMPARTMENT LIGHT ASSEMBLY




H39 . . RIGHT TAIL LIGHT . . . . . . . . . . . . . . . . . . RIGHT LUGGAGE COMPARTMENT LIGHT ASSEMBLY
H42 . . LEFT MID–HIGH RANGE SPEAKER . . in upper LH front door

H43 . .
RIGHT MID–HIGH RANGE SPEAKER .
in upper RH front door



H45 . . RIGHT REAR SPEAKER . . . . . . . . . . . . . in RH side of luggage compartment
H46 . . LEFT REAR SPEAKER . . . . . . . . . . . . . . in LH side of luggage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0


H50 . .
RIGHT FRONT HIGH RANGE
SPEAKER . . . . . . . . . . . . . . . . . . . . . . . .
in upper RH front door





H51 . .
RIGHT FRONT LOW RANGE
SPEAKER . . . . . . . . . . . . . . . . . . . . . . . .
in lower RH A–pillar





H52 . .
RIGHT REAR LOW RANGE SPEAKER
under rear window shelf



H53 . . RIGHT REAR HIGH RANGE SPEAKER under rear window shelf
H54 . . RIGHT FRONT MIDRANGE SPEAKER in upper RH front door
H55 . . LEFT FRONT MIDRANGE SPEAKER . in upper LH front door

H56 . .

LEFT REAR HIGH RANGE SPEAKER .

under rear window shelf




H57 . . LEFT REAR LOW RANGE SPEAKER . under rear window shelf




COMPONENT LOCATION CHART






 

COMP.8500.0 7100.0LOCATION DESCRIPTION
H58 . . LEFT FRONT LOW RANGE SPEAKER in lower LH A–pillar

H59 . .

LEFT FRONT HIGH RANGE SPEAKER

in upper LH front door




H66 . . SUBWOOFER . . . . . . . . . . . . . . . . . . . . . . at back of rear window shelf


H91 . .

RIGHT LUGGAGE COMPARTMENT
LIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . .
right rear light assembly




I1008 . SEAT MAT . . . . . . . . . . . . . . . . . . . . . . . . . passenger’s seat

K2 . . . .
HORN RELAY . . . . . . . . . . . . . . . . . . . . . .
rear LH side of engine compartment in Power Distribution Box . . . . . . . . . .

0


K4 . . . . BLOWER RELAY . . . . . . . . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . 
0

K9 . . . . UNLOADER RELAY, TERMINAL 15 . . . below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
K13 . . REAR DEFOGGER RELAY . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . 
0

K16 . .

HAZARD FLASHER RELAY . . . . . . . . . .

rear LH side of engine compartment in Power Distribution Box . . . . . . . . . .


0


K19 . . COMPRESSOR CONTROL RELAY . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . 
0
K21 . . NORMAL SPEED RELAY . . . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . 
0

K22 . .
HIGH SPEED RELAY . . . . . . . . . . . . . . . .
rear LH side of engine compartment in Power Distribution Box . . . . . . . . . .

0



K45 . .

FOLDING SUNROOF COMFORT
RELAY . . . . . . . . . . . . . . . . . . . . . . . . . . .
below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

K46 . . HIGH BEAM LIGHT RELAY . . . . . . . . . . below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
K46z . DAY LIGHT RELAY MODULE . . . . . . . . below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
K47 . . FRONT FOG LIGHT RELAY . . . . . . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . 
0


K48 . .

LOW BEAM LIGHT RELAY . . . . . . . . . . .

rear LH side of engine compartment in Power Distribution Box . . . . . . . . . .


0


K125 . ABS PUMP MOTOR RELAY, TIMED . . . Power Distribution Box rear LH side of engine compartment . . . . . . . . . . . . 
0




COMPONENT LOCATION CHART






 

COMP.8500.0 7100.0LOCATION DESCRIPTION
K6300 ENGINE CONTROL MODULE RELAY . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . 
0

K6301w

FUEL PUMP RELAY . . . . . . . . . . . . . . . .

rear LH side of engine compartment in Power Distribution Box . . . . . . . . . .


0


K6304 SECONDARY AIR PUMP RELAY . . . . . rear LH side of engine compartment in Power Distribution Box . . . . . . . . . . 
0
K6326 UNLOADER RELAY, TERMINAL 15 . . . rear RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

L1 . . . .
EWS TOROIDAL COIL . . . . . . . . . . . . . .
at ignition switch



M2 . . .

FUEL PUMP . . . . . . . . . . . . . . . . . . . . . . . .

below RH side of rear seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0


M3 . . . WIPER MOTOR . . . . . . . . . . . . . . . . . . . . rear of engine compartment below center of cowl . . . . . . . . . . . . . . . . . . . . . 0
M4 . . . WASHER PUMP . . . . . . . . . . . . . . . . . . . . front RH side of engine compartment on washer fluid reservoir . . . . . . . . . . 0

M7 . . .
HEADLIGHT/FOG LIGHT WASHER
PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . .
front RH side of engine compartment on washer fluid reservoir . . . . . . . . . .

0



M9 . . .

AUXILIARY FAN MOTOR . . . . . . . . . . . .

behind front grille behind trim panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0


M12 . . DRIVER’S DOOR LOCK MOTOR . . . . . in lower LH front door behind trim panel
M13 . . PASSENGER’S DOOR LOCK MOTOR in lower RH side of front door behind trim panel

M16 . .
GAS FILLER LOCK MOTOR . . . . . . . . .
in RH rear side of luggage compartment behind trim panel . . . . . . . . . . . . .

0



M17 . .

LUGGAGE COMPARTMENT LOCK
MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . .
rear side of luggage compartment behind trim panel . . . . . . . . . . . . . . . . . . .

0

M21 . . DRIVER’S WINDOW MOTOR . . . . . . . . LH front door behind door panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0
M23 . . PASSENGER’S WINDOW MOTOR . . . . RH front door behind door panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

M24z . FOLDING SUNROOF MOTOR . . . . . . . . in roof panel



M25 . .



CRUISE CONTROL ACTUATOR
(TEMPOMAT) . . . . . . . . . . . . . . . . . . . . .


front LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0



M30 . . BLOWER MOTOR . . . . . . . . . . . . . . . . . . rear of engine compartment behind RH fresh air cowl




COMPONENT LOCATION CHART






 

COMP.8500.0 7100.0LOCATION DESCRIPTION

S78 . .
PASSENGER’S MAKE–UP MIRROR
SWITCH . . . . . . . . . . . . . . . . . . . . . . . . .
above RH sun visor in sun visor bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0


S82y . FOG LIGHT SWITCH . . . . . . . . . . . . . . . . on instrument cluster

S126y

DRIVER’S POWER WINDOW SWITCH

center console near gearshift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0




S127y

PASSENGER’S POWER WINDOW
SWITCH . . . . . . . . . . . . . . . . . . . . . . . . .
center console near gearshift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0


S198 . JET HEATER THERMOSWITCH . . . . . . front LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

S218 . REAR DEFOGGER SWITCH . . . . . . . . . center console

S235 .

STARTER IMMOBILIZATION SWITCH .

LH footwell underside of steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0


S238 . FOLDING SUNROOF SWITCH . . . . . . . in roof panel
S302 . CENTRAL LOCKING SWITCH . . . . . . . . center console near gearshift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0


S530 .
IHKS CONTROL SWITCH . . . . . . . . . . . .
center of dash



S531 . TEMPERATURE WHEEL SWITCH . . . . center of dash
S8503 PROGRAM SWITCH . . . . . . . . . . . . . . . . center console
S8507 KICK–DOWN SWITCH . . . . . . . . . . . . . . LH footwell

S8511
REVERSING LIGHT SWITCH . . . . . . . .
under front of car LH side of transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0

T6151 CYL. 1 IGNITION COIL . . . . . . . . . . . . . . RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
T6152 CYL. 2 IGNITION COIL . . . . . . . . . . . . . . RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
T6153 CYL. 3 IGNITION COIL . . . . . . . . . . . . . . RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

T6154

CYL. 4 IGNITION COIL . . . . . . . . . . . . . .

RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0


X0 . . . . B+ JUNCTION POINT . . . . . . . . . . . . . . . rear LH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0




COMPONENT LOCATION CHART






 

COMP.8500.0 7100.0LOCATION DESCRIPTION
X336 . (6 PINS, NATURAL) . . . . . . . . . . . . . . . . . under roof center panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 0
X351 .

(2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .

in upper RH B–pillar




X352 . (2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . in upper LH B–pillar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
X371 . (2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . front RH side of engine compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

X372 .
(2 PINS, GRAY) . . . . . . . . . . . . . . . . . . . . .
in RH front bumper



X379 .

(1 PIN, NATURAL) . . . . . . . . . . . . . . . . . .

on lift gate




X380 . (1 PIN, NATURAL) . . . . . . . . . . . . . . . . . . on lift gate
X381 . (3 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . under roof center panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0 0

X382 .
(3 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .
above RH sun visor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
0
X383 . (2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . under rear of car LH side of on differential . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
X389 . (2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . rear LH side of engine compartment
X390 . (2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . RH side of dash behind glove box

X400 .

(8 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .

in LH rear side of luggage compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .



0
X401 . (1 PIN, BLACK) . . . . . . . . . . . . . . . . . . . . . above LH sun visor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0
X402 . (1 PIN, BLACK) . . . . . . . . . . . . . . . . . . . . . above RH sun visor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

X413 .
(3 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .
at back of rear window shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0
X423 . (1 PIN, –––) . . . . . . . . . . . . . . . . . . . . . . . . below center console on rear of park brake lever . . . . . . . . . . . . . . . . . . . . . . 0

X424 . (1 PIN, WHITE) . . . . . . . . . . . . . . . . . . . . . in LH side of luggage compartment behind trim panel . . . . . . . . . . . . . . . . . .

0
X494 . GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . under driver’s seat left . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0

X495 .

GROUND . . . . . . . . . . . . . . . . . . . . . . . . . .

RH side of glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0


X498 . GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . under driver’s seat left . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0




COMPONENT LOCATION CHART






 

COMP.8500.0 7100.0LOCATION DESCRIPTION
X13287 (1 PIN, WHITE) . . . . . . . . . . . . . . . . . . . . . center of dash behind center console

X13305

(8 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .

center console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .



0
X17159 (12 PINS, –––) . . . . . . . . . . . . . . . . . . . . . . at back of rear window shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
X17179 (12 PINS, –––) . . . . . . . . . . . . . . . . . . . . . . in LH side of luggage compartment behind trim panel . . . . . . . . . . . . . . . . . . 0

X18126
(17 PINS, BLACK) . . . . . . . . . . . . . . . . . .
center console behind radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .



0

X18196

(10 PINS, BLACK . . . . . . . . . . . . . . . . . . .

behind LH footwell speaker grille . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .




0
X18198 (10 PINS, BLACK . . . . . . . . . . . . . . . . . . . behind RH footwell speaker grille . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
0
X18279 (2 PINS, GRAY) . . . . . . . . . . . . . . . . . . . . . LH front door behind door panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0

X18280
(2 PINS, GRAY) . . . . . . . . . . . . . . . . . . . . .
RH front door behind door panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0


X18333 (2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . on instrument cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

X18334 (2 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . on instrument cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0

X18337 (12 PINS, BLACK) . . . . . . . . . . . . . . . . . . on instrument cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
0
X18338

(12 PINS, BLACK) . . . . . . . . . . . . . . . . . .

on instrument cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0

0
X18518 (4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . under RH front seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
X18520 (10 PINS, –––) . . . . . . . . . . . . . . . . . . . . . . center console RADIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
0

X18521
(10 PINS, –––) . . . . . . . . . . . . . . . . . . . . . .
RH side of luggage compartment CD CHANGER . . . . . . . . . . . . . . . . . . . . . .



0
X18723 GROUND . . . . . . . . . . . . . . . . . . . . . . . . . . below LH side of dash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
X18994 (3 PINS, YELLOW) . . . . . . . . . . . . . . . . . . LH footwell underside of steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0 0
X19527 (16 PINS, BLACK) . . . . . . . . . . . . . . . . . . center console right . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0 0
X62001

(4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . .

under center of car . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


0

0
X62002 (4 PINS, BLACK) . . . . . . . . . . . . . . . . . . . . under center of car . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0 0

S126y
DRIVER’S POWER
WINDOW SWITCH
S127y
PASSENGER’S
POWER WINDOW
SWITCHX316X324X8503
S3
AUTOMATIC
TRANSMISSION
RANGE SWITCH
S18
HAZARD SWITCHX511
X516
X1178
Y19
SHIFT–LOCK




COMPONENT LOCATION VIEWS








 




S302
CENTRAL LOCKING
SWITCH

S54
PASSENGER’S
SEAT, SEAT
HEATER SWITCHS56
PASSENGER’S
SEAT, SEAT
CONTROL SWITCH

S13
PASSENGER’S
DOOR JAMB
SWITCH
S14
DRIVER’S DOOR
JAMB SWITCH
M23
PASSENGER’S
WINDOW MOTOR
X256
X538X624X744X18280
X660X747




COMPONENT LOCATION VIEWS










 




M21
DRIVER’S WINDOW
MOTOR
X537
X625X749X18279
S61y
LUGGAGE
COMPARTMENT
LIGHT SWITCH
X711




COMPONENT LOCATION VIEWS







X319X424

 

N8
ANTENNA
AMPLIFIER AM/FM