Siemens MS43 Pinout

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BMW MS 43 Pinout.png

X60001

X60001 9-pin
Pin Type Description / Signal type Connection / Measuring notes
1 A Terminal 15 Relay, fuel injectors
2 Not used
3 A/E Signal Diagnostic link TXD K-Line
4 M Ground Ground connector
5 M Ground Ground connector
6 M Ground Ground connector
7 E Terminal 30 B+ terminal
8 E Voltage supply Fuse carrier, engine electronics
9 Not used

X60002

X60002 24-pin
Pin Type Description / Signal type Connection / Measuring notes
1 E Signal Oxygen sensor heater in front of catalytic converter Heated oxygen sensor 1 in front of catalytic converter
2 Not used
3 A/E Signal CAN bus low Transmission control unit (AT only)
4 A/E Signal CAN bus high Transmission control unit (AT only)
5 Not used
6 A/E Signal Diagnostic link TXD Transmission control unit (AT only)
7 E Signal Oxygen sensor heater behind catalytic converter Heated oxygen sensor 1 in front of catalytic converter
8 Not used
9 Not used
10 Not used
11 Not used
12 Not used
13 E Signal Oxygen sensor heater in front of catalytic converter Heated oxygen sensor 2 in front of catalytic converter
14 E Signal Oxygen sensor before catalytic converter Heated oxygen sensor 1 in front of catalytic converter
15 E Signal Oxygen sensor before catalytic converter Heated oxygen sensor 2 in front of catalytic converter
16 E Signal Oxygen sensor after catalytic converter Heated oxygen sensor 1 behind catalytic converter
17 Not used
18 E Signal Oxygen sensor after catalytic converter Heated oxygen sensor 2 behind catalytic converter
19 E Signal Oxygen sensor heater behind catalytic converter Heated oxygen sensor 2 behind catalytic converter
20 M Ground Oxygen sensor before catalytic converter Heated oxygen sensor 1 in front of catalytic converter
21 M Ground Oxygen sensor before catalytic converter Heated oxygen sensor 2 in front of catalytic converter
22 M Ground Oxygen sensor after catalytic converter Heated oxygen sensor 1 behind catalytic converter
23 E Signal Activation, main relay DME relay
24 M Ground Oxygen sensor after catalytic converter Heated oxygen sensor 2 behind catalytic converter

X60003

X60003 52-pin
Pin Type Description / Signal type Connection / Measuring notes
1 E Signal Air mass sensor Hot-film air mass meter
2 E Signal Exhaust camshaft sensor 1 Camshaft sensor II
3 Not used
4 Not used
5 E Signal Inlet camshaft sensor 1 Camshaft sensor I
6 Not used
7 A Voltage supply Electric throttle actuator Electric throttle actuator
8 E Signal Crankshaft sensor Crankshaft sensor
9 Not used
10 E Signal Electric throttle actuator Electric throttle actuator
11 Not used
12 Not used
13 Not used
14 Not used
15 M Ground Exhaust camshaft sensor 1 Camshaft sensor II
16 Not used
17 M Ground Air mass sensor Hot-film air mass meter
18 M Ground Inlet camshaft sensor 1 Camshaft sensor I
19 E Signal Electric throttle actuator Electric throttle actuator
20 M Ground Electric throttle actuator Electric throttle actuator
21 E Ground Crankshaft sensor Crankshaft sensor
22 A Signal Intake air temperature Intake air temperature sensor
23 M Ground Intake air temperature Intake air temperature sensor
24 A Signal Coolant temperature Coolant temperature sensor
25 M Ground Coolant temperature Coolant temperature sensor
26 Not used
27 A Signal Engine oil temperature Oil temperature sensor
28 M Ground Engine oil temperature Oil temperature sensor
29 A Signal Knock sensor Knock sensor
30 A Signal Knock sensor Knock sensor
31 A Signal Knock sensor Knock sensor
32 A Signal Knock sensor Knock sensor
33 E Signal Fuel injector 1 Fuel injector 1
34 E Signal Fuel injector 2 Fuel injector 2
35 E Signal Fuel injector 3 Fuel injector 3
36 E Signal Fuel injector 4 Fuel injector 4
37 E Signal Fuel injector 5 Fuel injector 5
38 E Signal Fuel injector 6 Fuel injector 6
39 Not used
40 E Signal VANOS inlet valve VANOS inlet valve
41 E Signal VANOS outlet valve VANOS outlet valve
42 E Signal Fuel tank vent valve Fuel tank vent valve
43 E Signal Electric throttle actuator Electric throttle actuator
44 E Signal Electric throttle actuator Electric throttle actuator
45 E Signal Characteristic map cooling Thermostat, characteristic map cooling
46 E Signal Close idle speed control valve Idle actuator
47 E Signal Open idle speed control valve Idle actuator
48 M Signal Shield, knock sensor Shield, knock sensor
49 E Signal Valve, individual control intake system Valve, individual control intake system
50 Not used
51 Not used
52 E Signal Secondary air pump valve Secondary air pump valve

X60004

X60004 40-pin
Pin Type Description / Signal type Connection / Measuring notes
1 Not used
2 Not used
3 E Signal Secondary air pump Secondary air pump relay
4 E Signal Electric fan Electric fan
5 Not used
6 Not used
7 M Ground Pedal position sensor Pedal position sensor
8 E Signal Pedal position sensor Pedal position sensor
9 A Voltage supply Pedal position sensor Pedal position sensor
10 E Signal Fuel pump relay 1 Fuel pump relay 1
11 Not used
12 M Ground Pedal position sensor Pedal position sensor
13 E Signal Pedal position sensor Pedal position sensor
14 A Voltage supply Pedal position sensor Pedal position sensor
15 Not used
16 Not used
17 A Speed signal Diagnostic connector
18 A Signal Valve, exhaust flap M54 3.0 l only Valve, exhaust flap
19 Not used
20 A Signal Diagnostic module, fuel tank leakage Diagnostic module, fuel tank leakage
21 Not used
22 E Signal Processed wheel speed, rear right ABS/ASC unit ABS/DSC unit
23 A Signal Clutch switch Clutch switch
24 E Signal Brake light switch Light switching centre control unit
25 Not used
26 E Terminal 15 Fuse F29
27 E Data link MFL Volute spring steering wheel
28 E Signal Brake light switch Brake light switch
29 E Signal Relay, A/C compressor Relay, A/C compressor
30 A Signal Diagnostic module, fuel tank leakage Diagnostic module, fuel tank leakage
31 Not used
32 E/A Signal Diagnostic link TXD Diagnostic connector
33 E Electronic vehicle immobilisation Electronic immobiliser control unit
34 Not used
35 Not used
36 E/A Signal CAN bus high Connector, CAN bus
37 E/A Signal CAN bus low Connector, CAN bus
38 M Ground Coolant outlet temperature Temperature sensor
39 A Signal Coolant outlet temperature Temperature sensor
40 Not used

X60005

X60005 9-pin
Pin Type Description / Signal type Connection / Measuring notes
1 E Signal Ignition coil 1 Ignition coil 1
2 E Signal Ignition coil 2 Ignition coil 2
3 E Signal Ignition coil 3 Ignition coil 3
4 Not used
5 M Ground Ground connector
6 Not used
7 E Signal Ignition coil 6 Ignition coil 6
8 E Signal Ignition coil 5 Ignition coil 5
9 E Signal Ignition coil 4 Ignition coil 4
X60005 9-pin
Pin Type Description / Signal type Connection / Measuring notes
1 E Signal Ignition coil 3 Ignition coil 3
2 E Signal Ignition coil 2 Ignition coil 2
3 E Signal Ignition coil 1 Ignition coil 1
4 Not used
5 M Ground Ground connector
6 Not used
7 E Signal Ignition coil 6 Ignition coil 6
8 E Signal Ignition coil 5 Ignition coil 5
9 E Signal Ignition coil 4 Ignition coil 4