Pin Assignments
E = Input, A = Output, M = GroundPin ConnectionDescription/Function Signal Type
19
MM_TOELGOil temperature signal –Transmission valve unit
20AS_MV1Solenoid valve 1 controlTransmission valve unit
21Not used
22Not used
23AF_NTU+Speed sensor turbine +Transmission valve unit
24MF_NTU–Speed sensor turbine –Transmission valve unit
25MW_NTUGround for shieldShield for speed sensor turbine
26Not used
27Not used
28Not used
29Not used
30Not used
31Not used
32E/AD_TXD2TXD diagnostic data linkEngine control module
33Not used
34Not used
35Not used
36E/AD_CAN-HCAN-bus HighEngine control module
37E/AD_CAN-LCAN-bus LowEngine control module
38MW_NABGround for shieldShield for speed sensor
39MF_NAB–Speed sensor shaft –Transmission valve unit
40AF_NAB+Speed sensor shaft +Transmission valve unit
Pin Assignments
E = Input, A = Output, M = Ground
X17
Pin Type Description/Function Connection
1
ETire pressure warning lamp controlEngine control module (DME) (M 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
5Not used
6EGround supply, terminal 61 for battery
charge indicatorGenerator (Z3 Versions)
Engine control module (DME) (M Versions)
7Not used
8EFog light indicator controlFront power distribution box, fuse 15
9ASound tone signalChime module
10Not used
11Not used
12Not used
13Not used
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
17Not used
18Not used
19EOil pressure warning lamp controlOil pressure switch (Z3 Versions)
Engine control module (DME) (M Versions)
20Not used
21EABS warning lamp (ABS)ABS/ASC/DSC control module
22EIgnition key warning/audible ignition key
warningIgnition switch
23EDriver’s door openDriver’s door jamb switch
24Not used
25EFuel consumption signalBoard computer (Z3 Versions)
26Not used
Pin Assignments
E = Input, A = Output, M = Ground
X271
Pin Type Description/Function Connection
1
AFuel level sensorFuel tank sensors
2Not used
3AGround supply for fuel tank sensor and
vehicle speed sensorFuel tank sensor and vehicle speed
sensor
4EPosition signal (TW)Vehicle speed sensor
5Not used
6EA/C-ON-signalAir condition switch
7EActivate A/CPressure switch
8Not used
9EOil level signalThermal oil level sensor (TOENS) control
module (Z3 Versions)
Engine control module (DME) (M Versions)
10Not used
11Not used
12Not used
