Page 147 of 357
Pin Assignments
E = Input, A = Output, M = Ground
X1170
Pin Type Signal Description/Function Connection
1
MVL–Sensor groundLeft front speed sensor (ABS)
2EVL+Speed signalLeft front speed sensor (ABS)
3Not used
4E15A21Voltage supplyFuse 21
5MHL–Sensor groundLeft rear speed sensor (ABS)
6EHL+Speed signalLeft rear speed sensor (ABS)
7E/ATXDTXD signalDiagnostic link
8M31LGroundGround point
9E30<10Voltage supplyFuse 10
10E/ACAN–CAN bus lowInstrument cluster/engine control
module
11E/ACAN+CAN bus highInstrument cluster/engine control
module
12Not used
13E54Brake signalBrake light switch
14EASCSASC-ON-signalASC switch
15Not used
16AWLASWarning lampInstrument cluster
17Not used
18Not used
19MVR–Sensor groundRight front speed sensor (ABS)
20EVR+Speed signalRight front speed sensor (ABS)
21ADFAHRRight rear speed signalEngine control module (DME)
22EHR+Speed signalRight rear speed sensor (ABS)
23MHR–Sensor groundRight rear speed sensor (ABS)
24M31LGroundGround point
25E30<38Voltage supplyFuse 38
Page 194 of 357
Pin Assignments
E = Input, A = Output, M = Ground
X16
Pin Type Description/Function Connection
1
EHigh beam indicator controlCombination switch
2ETerminal 58g, instrument illumination powerLight switch (dimmer)
3ERight turn signal indicator controlHazard flasher relay
4ELeft turn signal indicator controlHazard flasher relay
5Not used
6E/ACAN bus highEngine/slip control module (Z3 Versions)
7E/ACAN bus lowEngine/slip control module (Z3 Versions)
8Not used
9Not used
10Not used
11ADiagnosis RXD signalData link connector (M Versions)
12E/ADiagnosis TXD signalData link connector
13E/ACAN jumperInstrument cluster (Z3 Versions)
14EAirbag warning lamp (SRS) controlSupplemental restraint system control
module
15Not used
16E“Check engine” indicator controlEngine control module (DME) (M Versions)
17EPark brake warning lamp controlPark brake switch
18EBrake fluid warning lamp controlBrake fluid level switch
19EBrake pad wear warning lamp controlBrake pad sensors
20ECrankshaft RPM speed signal TDEngine control module (DME)
21Not used
22EVoltage supply, terminal 30Front power distribution box, fuse 31
23EVoltage supply, terminal 15 for indicator and
warning lampsFront power distribution box, fuse 27
24MGround supply, terminal 31 for instrument
cluster electronicsGround point
25E/ACAN jumperInstrument cluster (Z3 Versions)
26Not used
Page 195 of 357
Pin Assignments
E = Input, A = Output, M = Ground
X17
Pin Type Description/Function Connection
1
ETrailer turn signal indicator controlHazard flasher relay (Z3 Versions)
2AVehicle speed signalVarious control modules
3MGround supply, terminal 31 for indicator and
warning lampsGround point
4EVoltage supply, terminal 15 for instrument
cluster electronicsFront power distribution box, fuse 23
5EVoltage supply, terminal 15 for battery
charge indicatorIgnition switch, terminal 15 (M Versions)
6EGround supply, terminal 61 for battery
charge indicatorGenerator
7Not used
8EFog light indicator controlFront power distribution box, fuse 15
(Z3 Versions)
9ASound tone signalChime module
10not used
11ESlip control system warning lamp (ABS)
controlSlip control module (ABS/ASC)
(M Versions)
12EASC signalASC control module (M Versions)
13ATI-measurement signal (fuel consumption)Engine control module (DME) (M Versions)
14ESeat belt warning lamp controlDriver’s seat belt switch
15ESIA reset/service interval indicator resetData link connector
16EVoltage supply, terminal RFront power distribution box, fuse 46
17ACoolant temperature sensor (–)Coolant temperature sensor (M Versions)
18ECoolant temperature sensor (+)Coolant temperature sensor (M Versions)
19EOil pressure warning lamp controlOil pressure switch (M Versions)
Engine control module (Z3 Versions)
20Not used
21MGround (ASC)Ground point (M Versions)
21EABS warning lamp (ABS)Slip control module (ABS/ASC)
(Z3 Versions)
22EIgnition key warning/audible ignition key
warningIgnition switch