BMW Z3 E37 1998 Electrical Troubleshooting Manual page 125

BMW BMW BMW BM
04/99
Z3
Pin Assignments
X74
Pin Type Description/Function
1 A Pyrotechnical belt tensioner
2 A Pyrotechnical belt tensioner
3 A Pyrotechnical belt tensioner
4 A Pyrotechnical belt tensioner
5 E Power supply
6 M Ground
7 A Air bag warning indicator
8 E Belt switch
9 E/A TxD diagnostic data line
10 A Air bag (+)
11 A Air bag (–)
12 E Belt switch
13 A Air bag (+)
14 A Air bag (–)
15 E Seat occupancy detector
16 A Gas generator
17 A Gas generator
18 A Gas generator
19 A Gas generator
20 E Impact sensor
21 E Impact sensor
22 Not used
23 Not used
24 Not used
25 Not used
26 Not used
27 Not used
28 Not used
29 Not used
E = Input, A = Output, M = Ground
3234.0 a
Connection
Driver's side pyrotechnical belt tensioner
Driver's side pyrotechnical belt tensioner
Passenger's side pyrotechnical belt
tensioner
Passenger's side pyrotechnical belt
tensioner
Front power distribution box, fuse 41
Ground point
Instrument cluster
Passenger's seat belt switch
Data link connector
Driver's air bag gas generator
Driver's air bag gas generator
Driver's seat belt switch
Passenger's air bag gas generator
Passenger's air bag gas generator
Seat occupancy detector
Gas generator, left side air bag
Gas generator, left side air bag
Gas generator, right side air bag
Gas generator, right side air bag
Driver's side impact sensor
Passenger's side impact sensor
1998