1998 BMW M3 Electrical Troubleshooting Manual




COMPONENT LOCATION VIEWS $%%





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B6231
OIL PRESSURE
SWITCH
R6252
THROTTLE
POSITION SENSOR
B6232
ENGINE COOLANT
TEMPERATURE
SENSOR
X6256
X6231
T6151
CYL. 1 IGNITION
COIL
T6152
CYL. 2 IGNITION
COILT6153
CYL. 3 IGNITION
COIL
T6154
CYL. 4 IGNITION
COIL

318is318is 318is






COMPONENT LOCATION VIEWS $%%





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M9
AUXILIARY FAN
MOTOR
B18
BRAKE FLUID
LEVEL SWITCH B6205
INTAKE AIR
TEMPERATURE
SENSOR
S123
ABS PEDAL
TRAVEL SENSOR
X20
X69X111X1162
S63
ENGINE COOLANT
LEVEL SWITCH
X82
X112


318is
B6217
HOT FILM AIR
MASS METERX70
X6205X6217
M25
CRUISE CONTROL
ACTUATOR
(TEMPOMAT)


K10
ABS RELAY
K13
REAR DEFOGGER
RELAY
K19
COMPRESSOR
CONTROL RELAYK6301w
FUEL PUMP RELAY
K21
NORMAL SPEED
RELAY




COMPONENT LOCATION VIEWS $%%





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K2
HORN RELAY
K4
BLOWER RELAY
K16
HAZARD FLASHER
RELAYK47
FRONT FOG LIGHT
RELAY
K48
LOW BEAM LIGHT
RELAYK22
HIGH SPEED
RELAY
K125
ABS PUMP MOTOR
RELAY, TIMEDK6300
ENGINE CONTROL
MODULE RELAY
K6301
CYL. 1–6 FUEL
PUMP RELAY


K6304
SECONDARY AIR
PUMP RELAY







COMPONENT LOCATION VIEWS $%%





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M2
FUEL PUMP
X6120X638X679


318isY6120
EVAPORATIVE
EMISSION VALVE

B21
ON–BOARD
COMPUTER
TEMPERATURE
SENSOR
X770




COMPONENT LOCATION VIEWS $%%





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B6
FUEL LEVEL
SENSOR
X13142X1241

M105
REAR WINDOW
BLOWER X273
X274





COMPONENT LOCATION VIEWS $%%





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M98
LEFT REAR
WINDOW MOTOR
M99 *
RIGHT REAR
WINDOW MOTOR
X13256
X13257 *

M43
CONVERTIBLE TOP
STORAGE LID
LOCK MOTOR
X10223
X10224


* RH SIMILAR

X11205






COMPONENT LOCATION VIEWS $%%





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X382
E56
DRIVER’S SEAT-
BACK HEATER X275X726X727X728X729X778E57
DRIVER’S SEAT
HEATER
M50
DRIVER’S SEAT
CUSHION TILT
MOTORM51
DRIVER’S SEAT
MOVEMENT
MOTOR
M52
DRIVER’S SEAT
HEIGHT MOTOR
M53
DRIVER’S SEAT-
BACK RECLINER
MOTOR X402

E36
PASSENGER’S
MAKE–UP MIRROR
LIGHT
S78
PASSENGER’S
MAKE–UP MIRROR
SWITCH




COMPONENT LOCATION VIEWS $%%





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C101
CONTACT RINGS2
IGNITION SWITCH



S7
COMBINATION
SWITCH
S28
CRUISE CONTROL
SWITCH G5
DRIVER’S AIR BAG
GAS GENERATOR
S4
HORN SWITCHX9997

X740
X741
X10218