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Bosch M3.3 S50B30 Pinout: Difference between revisions
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BMW S50B30 engine is controlled by seperated control unit for the double VANOS and the Bosch M3.3 for the rest of engine operation. Both control units communicate over CAN bus. | BMW S50B30 engine is controlled by seperated control unit for the double VANOS and the Bosch M3.3 for the rest of engine operation. Both control units communicate over CAN bus. | ||
[[File:Bosch M3.3 Page 1.jpg | =Engine Control Unit= | ||
[[File:Bosch M3.3 Page 1.jpg|thumb|right|Bosch M3.3 Pinout]] | |||
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=Vanos Control Unit= | =Vanos Control Unit= | ||
[[File:Bosch M3.3 Page 2.jpg|thumb|right|M3.3 VANOS Pinout]] | |||
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Latest revision as of 12:26, 1 July 2021
BMW S50B30 engine is controlled by seperated control unit for the double VANOS and the Bosch M3.3 for the rest of engine operation. Both control units communicate over CAN bus.
Engine Control Unit
Engine Control Unit | ||
---|---|---|
Pin | Type | Description |
1 | Output | Fuel Pump Relay |
2 | Output | Idle Control Valve (Closing) |
3 | Output | Injection Valve Cylinder 1 |
4 | Output | Injection Valve Cylinder 3 |
5 | Output | Injection Valve Cylinder 5 |
6 | Ground | Ground Injection Valves |
8 | Output | Malfunction Inidicator Light |
12 | Input | O2 Sensor Bank 2 |
13 | Input | O2 Sensor Bank 1 |
14 | Ground | Mass Air Sensor |
15 | Input | Ignition Circuit Monitoring |
16 | Input | Crankshaft Sensor + |
17 | Input | Camshaft Sensor + |
19 | Output | Secondary Air Pump Relay |
23 | Output | Ignition Coil Cylinder 5 |
24 | Output | Ignition Coil Cylinder 3 |
25 | Output | Ignition Coil Cylinder 1 |
26 | Input | Voltage Supply Terminal 30 |
27 | Output | Main Relay |
28 | Ground | Ground Injection Valves |
29 | Output | Idle Control Valve (Opening) |
31 | Output | Injection Valve Cylinder 2 |
32 | Output | Injection Valve Cylinder 4 |
33 | Output | Injection Valve Cylinder 6 |
34 | Ground | Ground Other Amplifier |
36 | Output | Tank Ventilation Valve |
37 | Output | O2 Sensor Heater Relay |
39 | Ground | O2 Sensor Bank 2 |
40 | Ground | O2 Sensor Bank 1 |
41 | Input | Mass Air Sensor |
42 | Input | Vehicle Speed Signal |
43 | Input | Crankshaft Sensor - |
44 | Input | Camshaft Sensor - |
45 | Ground | Ground Ignition Circuit Monitoring |
46 | Output | Engine Speed Signal |
47 | Output | Fuel Consumption Signal |
48 | Output | Air Conditioning Compressor Relay |
50 | Output | Ignition Coil Cylinder 6 |
51 | Output | Ignition Coil Cylinder 4 |
52 | Output | Ignition Coil Cylinder 2 |
54 | Input | Voltage Supply Main Relay |
55 | Ground | Ground Ignition |
56 | Input | Voltage Supply Terminal 15 |
59 | Output | +5V Supply Voltage |
60 | Input | Programming Voltage |
64 | Input | Air Conditioning Switch |
65 | Input | Air Conditioning Compressor |
66 | Input | Immobilizer |
68 | Input | Knock Sensor 3 |
69 | Input | Knock Sensor 2 |
70 | Input | Knock Sensor 1 |
71 | Ground | Ground Analog & Knock Sensors |
73 | Input | Throttle Position Sensor |
77 | Input | Intake Air Temperature Sensor |
78 | Input | Engine Temperature Sensor |
82 | Input | Engine Running Detection |
84 | Ground | CAN Bus Shielding |
85 | I/O | CAN Bus Low |
86 | I/O | CAN Bus High |
87 | I/O | Diagnostic Link TXD |
Vanos Control Unit
VANOS Control Unit | ||
---|---|---|
Pin | Type | Description |
1 | Output | Solenoid 1 (Retard) |
2 | Ground | Ground Load |
3 | I/O | Diagnostic Link RXD |
4 | I/O | CAN Bus Low |
5 | Ground | Ground Electronic |
6 | Input | Camshaft Sensor Exhaust |
8 | Input | Voltage Supply Terminal 15 |
9 | Output | Solenoid 2 (Advance) |
10 | Output | Electronic Cooling Fan Relay |
11 | I/O | Diagnostic Link TXD |
12 | I/O | CAN Bus High |
13 | Input | Voltage Supply Main Relay |
14 | Input | Camshaft Sensor Intake |