Specifications

8
Operations Connecting to a Vehicle
Figure 3-4 38-pin connector—fits MB-1 adapter
Pin Function Pin Function
1
Ground, circuit 31 (W12, W15, electronics
ground)
14
On-off ratio, engine 119 LH-SFI, engine 120
LH-SFI (right)
2 Voltage, circuit 87 or 15z
15
On-off ratio, engine 120 LH-SFI (left)
3 Voltage, circuit 30 Instrument cluster
4
Electronic diesel system
16
Air conditioning (models 124, 202, 208,
210)
Electronic distributor-type fuel injection
(diesel)
Tempmatic air conditioning (model 170)
Electronic inline fuel injection (diesel)
17
Distributor ignition, engines 104, 119,
engine 120 (right)
HFM sequential multiport fuel injection/
ignition
TD-speed signal (time division) (diesel)
(model 140)
LH sequential multiport fuel injection,
engines 104, 119, 120 (right)
TN-speed signal, LH-SFI engines, HFM
(model 202)
ME sequential multiport fuel injection/
ignition, engines 119, 120 (right)
18 Distributor ignition, engine 120 (left)
5
LH sequential multiport fuel injection,
engine 120 (left)
19 Diagnostic module
ME sequential multiport fuel injection/
ignition, engine 120 (left)
20
Pneumatic system equipment (model 140)
6
Antilock brake system Combination control module (model 210)
Electronic traction system
21
Convenience feature (model 140)
Acceleration slip regulation Roadster soft top (model 129)
Electronic stability program 22 Roll bar (model 129)
7
Electronic accelerator 23 Anti-theft alarm
Cruise control/idle speed control 24–25 Not used
8
Base module 26 Automatic locking differential (model 202)
Brake assist 27 Not used
9
Automatic locking differential (models 124,
129, 140)
28 Parktronic system (model 140)
10 Electronic transmission control 29 Not used
11 Adaptive damping system 30 Airbag/ETR (SRS)
12 Speed-sensitive power steering 31 Remote central locking
13
TNA-signal (gasoline) LH-SFI engines 32–33 Not used
TD-signal (diesel) (model 210) 34 Communication and navigation system
TN-signal (gasoline), HFM (ME)-SFI
engines
35–38 Not used