1998 BMW M3 Electrical Troubleshooting Manual








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Pin Assignments
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E = Input, A = Output, M = GroundE = X10182
18 Pins, black
F = X1325215 Pins, black
G = X1325326 Pins, yellow
H = X1325426 Pins, green
I = X1325526 Pins, nature
J = X1325815 Pins, white
X10182
Pin Type Description/Function Connection
1
ECrash signalCrash control unit
2ELight signalLight switch
3Not used
4EVoltage supply, terminal RFront power distribution box, fuse 43
5MGroundGround
6Not used
7AActivate relayHorn relay (Alpine)
8Not used
9ADiagnosis RxD signalData link connector
10Not used
11E/ADiagnosis TxD signalData link connector
12EStart signalStarter
13Not used
14Not used
15ADrive-away protectionElectronic immobilizer control module
(EWS II)
16Not used
17Not used
18EPower supplyFront power distribution box







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Pin Assignments
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E = Input, A = Output, M = Ground
X13252
Pin Type Description/Function Connection
1
EPower lock signalDoor lock motors
2AVoltage supplyAll lock motors
3APower supplyDoor lock heating
4EAutomatic interior light signalInterior light
5Not used
6AVoltage supplyPower window motor, driver’s door
7AVoltage supplyPower window motor, passenger’s door
8EPower supplyFront power distribution box, fuse 14
9ELock signalLock motor & luggage compartment lid
relay
10EPower supplyFront power distribution box, fuse 35
11AVoltage supplyInterior lights, engine compartment light,
glove box light
12EPower supplyFront power distribution box, fuse 33
13EMotor signalPower window motor, driver’s door
14EMotor signalPower window motor, passenger’s door
15MGroundGround
X13253
Pin Type Description/Function Connection
1
EPosition signalDoor lock motor, driver’s door
2EPosition signalDoor lock motor, passenger’s door
3ELock signal, luggage compartment lidLuggage compartment lid lock motor,
luggage compartment lid relay
4EData signalAnti-theft system control module (Alpine)
5Not used
6Not used
7ECrash signalInertia switch
8ERevolution signalPower window motor, driver’s door
9ERevolution signalPower window motor, passenger’s door







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Pin Assignments
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E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
10
Not used
11Not used
12Not used
13ECentral arrest signalDoor lock switches
14ELock signal, driver’s doorDoor lock motor, driver’s door
15ELock signal, passenger’s doorDoor lock motor, passenger’s door
16ELock signal, luggage compartment lidLuggage compartment lid lock motor
17EData signalAnti-theft system control module (Alpine)
18Not used
19ECentral locking signalCentral locking switch
20E/AData signalRelay module
21Not used
22Not used
23APlus supply (revolution)Power window’s motor, driver’s side
24AVoltage supply (revolution)Power window’s motor, passenger’s side
25Not used
26AVoltage supplyLuggage compartment lights
X13254
Pin Type Description/Function Connection
1
EDoor signalDriver’s door handle switch
2EDoor signalDoor jamb switch driver’s door
3EDoor signalDoor jamb switch passenger’s door
4EConvertible: Luggage compartment lid
signal
Four-door: Door signalLuggage compartment lid switch/luggage
compartment lid relay
Left rear door jump switch
5EDoor signalRight rear door jump switch
6EOPEN signalPower window switch, driver’s door
7ECLOSE signalPower window switch, driver’s door
8EOPEN signalPower window switch, passenger’s door
9ECLOSE signalPower window switch, passenger’s door
10EFour-door: child protection signalChild protection switch







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Pin Assignments
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E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
11
Not used
12Not used
13Not used
14ELuggage compartment lid signalLuggage compartment lid switch
15AData signalRelay module
16AData signalRelay module
17AData signalRelay module
18Not used
19Not used
20Not used
21Not used
22Not used
23Not used
24Not used
25Not used
26Not used
X13255
Pin Type Description/Function Connection
1
AData signalRelay module
2EOPEN signalLeft rear power window switch
3EOPEN signalRight rear power window switch
4EConvertible: OPEN signal
Four-door: OPEN signalMain power window switch
Driver’s rear window switch
5EConvertible: Data signal
Four-door: CLOSE signalConvertible top control module
Passenger’s rear window switch
6Not used
7AData signalRelay module
8ECLOSE signalLeft rear power window switch
9ECLOSE signalRight rear power window switch
10EConvertible: CLOSE signal
Four-door: CLOSE signalMain power window switch
Driver’s window switch







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Pin Assignments
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E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
11
EConvertible: Data signal
Four-door: OPEN signalConvertible top control module
Passenger’s window switch
12Not used
13Not used
14Not used
15Not used
16Not used
17Not used
18Not used
19Not used
20Not used
21Not used
22Not used
23Not used
24Not used
25Not used
26Not used
X13258
Pin Type Description/Function Connection
1
EData signalCentral body electronic module
2AVoltage supply (motor)Right rear power window motor
3ESignalRight rear power window motor
4ESignalLeft rear power window motor
5AVoltage supply (motor)Left rear power window motor
6Not used
7Not used
8MGroundGround
9EData signalCentral body electronic module
10E/AData signalCentral body electronic module
11E/AData signalCentral body electronic module







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Pin Assignments
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E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
12
EData signalCentral body electronic module
13E/AData signalCentral body electronic module
14Not used
15EPower supplyFront power distribution box

1

CENTRAL BODY ELECTRONICS (ZKE IV) $%%




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.5 GR/SW
18 X10182
LIGHT SWITCH
DETAILS
6300.0 P90
FRONT POWER
DISTRIBUTION BOX


9
X2F3310AF1430AF3525A
DATA LINK
0670.5
12 8 10 X13252
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
2
X10182
58gSTART
1240.0
12 .35 SW/GN
6 X100188 X1001610
.5 WS/GE
7 X10182
.75 WS/GN
17
.5 WS/RT/GEX132532
.5 BR/GR/GE5
.5 BR/WS4 X13254
.5 GN/WS/GE
ANTI–THEFT
SYSTEM (ALPINE)
6575.2 FUSE DETAILS
0670.3FUSE DETAILS
0670.3FUSE DETAILS
0670.3FUSE DETAILS
0670.3
RXD
.5 BR/SW/GE
1 CRASH CONTROL
MODULE
6350.0
3
.5 BR/BL/GE
.5 BR/RT/GE
11
.5 WS/VITXD
ZKE CENTRAL
LOCKING (ZV)
5126.0 INTERIOR LIGHTS
6330.3
F435A
26 X10018
FUSE DETAILS
0670.3
4

CENTRAL BODY ELECTRONICS (ZKE IV) $%%




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P90
FRONT POWER
DISTRIBUTION BOX


15
F3525A
INTERIOR LIGHTS
6330.3
GROUND
DISTRIBUTION
0670.410X13252
A104
BODY
ELECTRONICS
CONTROL MODULE
(ZKE IV)
10 X10018
.5 BR/WS
4
.75 RT/SW11
1.5 VI/SW2
2.5 BL/GR1
2.5 SW9 X13252
2.5 WS
10
.5 GN/BL
ZKE CENTRAL
LOCKING (ZV)
5126.0FUSE DETAILS
0670.3
X495
POWER WINDOWS
(FH)
5133.1
14 X1325426
.75 VI/SWX1325315 X10182
.5 SW/GN
DRIVE–AW AY
PROTECTION
(EWS II)
6135.0
LICENSE PLATE/
LUGGAGE
COMPARTMENT
LIGHTS
6320.0LICENSE PLATE/
LUGGAGE
COMPARTMENT
LIGHTS
6320.0
4
.5 BL/RT/GE
3
.75 BR/GE
ZKE DOOR LOCK
HEATING (TSH)
5120.0X13253