Siemens MS41 Pinout

Pin Type Description Connection
1 Output Ignition signal cyl. 2 Ignition coil cyl. 2
2 Output Ignition signal cyl. 6 Ignition coil cyl. 6
3 Output Ignition signal cyl. 4 Ignition coil cyl. 4
4 Ground Ground Ground connector, power
5 Output Fuel injector cyl. 2 Fuel injector cyl. 2
6 Output Fuel injector cyl. 1 Fuel injector cyl. 2
7 Ground Ground, hot film air mass meter Hot-film air mass meter
8 Input Signal, hot film air mass meter Hot-film air mass meter
9 Output Injection signal for KVA Integrated electronic control unit (IKE)
10 Input Temperature sensor signal DME Dual temperature switch
11
12 Input Throttle potentiometer signal Throttle potentiometer
13
14 Input Intake air temperature Intake air temperature sensor
15 Input Speed signal, rear ABS control unit, ABS / ASC control unit
16 Input A/C compressor signal Heating and A/C control module
17  
18 Input Anti-theft alarm system signal (EWS II) Electronic immobilizer control unit (EWS II)
19 Input Air conditioning ON signal Heating and A/C control module
20    
21 Output VANOS valve signal VANOS valve
22 Output Fuel injector cyl. 3 Fuel injector cyl. 3
23 Output Fuel injector cyl. 6 Fuel injector cyl. 6
24 Output Fuel injector cyl. 4 Fuel injector cyl. 4
25 Output Signal, oxygen sensor heater Heated oxygen sensor 1 in front of catalytic converter
26 Input Terminal 30 Fuse carrier, engine electronics
27 Output Idle actuator closing winding Idle actuator
28 Ground Ground Ground connector, electronics
29 Output Ignition signal cyl. 1 Ignition signal cyl. 1
30 Output Ignition signal cyl. 3 Ignition signal cyl. 3
31 Output Ignition signal cyl. 5 Ignition signal cyl. 5
32 Ground Ground Ground connector, power
33 Output Fuel injector cyl. 5 Fuel injector cyl. 5
34 Ground Ground Ground
35  
36 Output Engine speed signal Integrated electronic control unit (IKE)
37    
38 Ground Shield, knock sensor Knock sensor
39 Ground NTC Signal Solder connector, temperature sensor
40 Ground Crankshaft sensor ground Crankshaft sensor
41 Ground Shield Camshaft sensor
42 Ground Ground, throttle potentiometer Throttle potentiometer
43 Ground Camshaft sensor ground Camshaft sensor
44 Output Throttle potentiometer +5V supply Throttle potentiometer
45 Output Throttle position signal ABS / ASC Control unit
46    
47      
48 Ground Supply crankshaft sensor Crankshaft sensor
49 Input Terminal 15 Fuse F24
50
51      
52      
53 Output Idle actuator opening winding Idle actuator
54 Input Terminal 87 Connector, terminal 87
55 Input Signal Oxygen sensor heater Heated oxygen sensor 2 in front of catalytic converter
56 Ground Signal, ignition circuit monitoring Ground connector
57 Output Signal Knock sensor, cyl. 1-3 Knock sensor
58 Input Signal Knock sensor, cyl. 1-3 Knock sensor
59 Output Signal Knock sensor, cyl. 4-6 Knock sensor
60 Input Programming voltage input Diagnostic connector
61      
62      
63 Input Signal Knock sensor, cyl. 4-6 Knock sensor
64 Output Voltage signal, camshaft sensor Camshaft sensor
65 Input Signal, camshaft sensor Camshaft sensor
66      
67 Ground Ground Heated oxygen sensor 1 Heated oxygen sensor 1 in front of catalytic converter
68 Output Tank ventilation valve Charcoal filter valve
69 Output EKP relay Fuel pump relay 1
70 Ground Ground Heated oxygen sensor 2 Heated oxygen sensor 2 in front of catalytic converter
71      
72      
73 Input DME relay DME relay
74 Output Signal, A / C compressor relay Heating and A / C control module
75 Output Signal, oxygen sensor Heated oxygen sensor 1 in front of catalytic converter
76 Output Signal, oxygen sensor Heated oxygen sensor 2 in front of catalytic converter
77      
78      
79      
80 Input Ignition fade-out ABS / ASC control unit
81 Input Ignition timing adjustment ABS / ASC control unit
82 Input Signal, idle speed increase (anti-stall) ABS / ASC control unit
83 Input Crankshaft sensor signal Crankshaft sensor
84      
85 Input / Output CAN bus low EGS Transmission control unit
86 Input / Output CAN bus high EGS Transmission control unit
87 Input Terminal 87 Connector, terminal 87
88 Input / Output Diagnostic link TXD Diagnostic connector