Siemens MS43 Pinout

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BMW MS 43 Pinout.png


Note: Some pins were intended to be used in further developement stages, but never in actual production. We marked them grey in the following table.

X60001 - Voltage Supply

X60001 9-pin
Pin Type Description / Signal type Connection / Measuring notes
1 Input Voltage Supply Terminal 15 Fuel Injector Relay K6327
2
3 I/O Diagnostic Link TXD K-Line
4 Ground Ground Ground Connector X6454
5 Ground Ground Ground Connector X6458
6 Ground Ground Ground Connector X6458
7 Input Voltage Supply Terminal 30 B+ Potential Distributor A2076
8 Input Voltage Supply Terminal 87 Fuse Carrier Engine Electronics A8680
9 Input (optional) Fuel Injector Supply Voltage (optional) Fuel Injector Relay K6327

X60002 - Peripherals

X60002 24-pin
Pin Type Description / Signal type Connection / Measuring notes
1 Output [PWM] O2 Sensor Heater Pre-Cat Bank 1 Heated O2 Sensor Pre-Cat Bank 1 B62101
2 Input [0-5V] Signal EGT Sensor Pre-Cat Bank 1 Never Used In Production
3 I/O Gearbox CAN-Low Transmission Control Unit A7000 (AT/SMG only)
4 I/O Gearbox CAN-High Transmission Control Unit A7000 (AT/SMG only)
5 Input [0-5V] Signal EGT Sensor Pre-Cat Bank 2 Never Used In Production
6 I/O Gearbox Diagnostic Link TXD2 Transmission Control Unit A7000 (AT/SMG only)
7 Output [PWM] O2 Sensor Heater Post-Cat Bank 1 Heated O2 Sensor Post-Cat Bank 1 B62102
8 Ground EGT Sensor Pre-Cat Bank 1 Never Used In Production
9 Ground EGT Sensor Pre-Cat Bank 2 Never Used In Production
10 Ground EGT Sensor Post-Cat Bank 1 Never Used In Production
11 Ground EGT Sensor Post-Cat Bank 2 Never Used In Production
12 Input [0/1] Pencil Coil Detection Voltage Supply Terminal 87 if pencil style ignition coils are equipped
13 Output [PWM] O2 Sensor Heater Pre-Cat Bank 2 Heated O2 Sensor Pre-Cat Bank 2 B62201
14 Input [0-5V] Signal O2 Sensor Pre-Cat Bank 1 Heated O2 Sensor Pre-Cat Bank 1 B62101
15 Input [0-5V] Signal O2 Sensor Pre-Cat Bank 2 Heated O2 Sensor Pre-Cat Bank 2 B62201
16 Input [0-5V] Signal O2 Sensor Post-Cat Bank 1 Heated O2 Sensor Post-Cat Bank 1 B62102
17 Input [0-5V] Signal EGT Sensor Post-Cat Bank 2 Never Used In Production
18 Input [0-5V] Signal O2 Sensor Post-Cat Bank 2 Heated O2 Sensor Post-Cat Bank 2 B62202
19 Output [PWM] O2 Sensor Heater Post-Cat Bank 2 Heated O2 Sensor Post-Cat Bank 2 B62202
20 Ground O2 Sensor Pre-Cat Bank 1 Heated O2 Sensor Pre-Cat Bank 1 B62101
21 Ground O2 Sensor Pre-Cat Bank 2 Heated O2 Sensor Pre-Cat Bank 2 B62201
22 Ground O2 Sensor Post-Cat Bank 1 Heated O2 Sensor Post-Cat Bank 1 B62102
23 Output [0/1] ECU Main Relay Control ECU Main Relay K6300
24 Ground O2 Sensor Post-Cat Bank 2 Heated O2 Sensor Post-Cat Bank 2 B62202

X60003 - Engine

X60003 52-pin
Pin Type Description / Signal type Connection / Measuring notes
1 Input [0-5V] Signal Hot Film Mass Air Flow Sensor Hot Film Mass Air Flow Sensor
2 Input Signal Exhaust Camshaft Sensor Exhaust Camshaft Sensor
3 Output Spare Output 1 Never Used In Production
4
5 Input Signal Intake Camshaft Sensor Intake Camshaft Sensor
6
7 Output [+5V] Voltage Supply Electric Throttle Body Electric Throttle Body
8 Input Signal Crankshaft Sensor Crankshaft Sensor
9
10 Input [0-5V] Signal Electric Throttle Body Potentiometer 2 Electric Throttle Body
11 Output Spare Output 3 Never Used In Production
12
13
14
15 Ground Exhaust Camshaft Sensor Exhaust Camshaft Sensor
16
17 Ground Hot Film Mass Air Flow Sensor Hot Film Mass Air Flow Sensor
18 Ground Intake Camshaft Sensor Intake Camshaft Sensor
19 Input [0-5V] Signal Electric Throttle Body Potentiometer 1 Electric Throttle Body
20 Ground Electric Throttle Body Electric Throttle Body
21 Input Ground Crankshaft sensor Crankshaft sensor
22 Output [0-5V] Signal Intake Air Temperature Intake Air Temperature Sensor
23 Ground Intake Air Temperature Intake Air Temperature Sensor
24 Output [0-5V] Signal Coolant Temperature Coolant Temperature Sensor
25 Ground Coolant Temperature Coolant Temperature Sensor
26
27 Output [0-5V] Signal Engine Oil Temperature Oil Temperature Sensor
28 Ground Engine Oil Temperature Oil Temperature Sensor
29 Input Signal Knock Sensor 1A Knock Sensor Cylinder 1-3
30 Input Signal Knock Sensor 1B Knock Sensor Cylinder 1-3
31 Input Signal Knock Sensor 2A Knock Sensor Cylinder 4-6
32 Input Signal Knock Sensor 2B Knock Sensor Cylinder 4-6
33 Output [0/1] Signal Fuel Injector Cylinder 1 Fuel Injector Cylinder 1 Y6101 Pin 1
34 Output [0/1] Signal Fuel Injector Cylinder 2 Fuel Injector Cylinder 2 Y6102 Pin 1
35 Output [0/1] Signal Fuel Injector Cylinder 3 Fuel Injector Cylinder 3 Y6103 Pin 1
36 Output [0/1] Signal Fuel Injector Cylinder 4 Fuel Injector Cylinder 4 Y6104 Pin 1
37 Output [0/1] Signal Fuel Injector Cylinder 5 Fuel Injector Cylinder 5 Y6105 Pin 1
38 Output [0/1] Signal Fuel Injector Cylinder 6 Fuel Injector Cylinder 6 Y6106 Pin 1
39
40 Output [PWM] Signal VANOS Intake Solenoid VANOS Intake Solenoid
41 Output [PWM] Signal VANOS Exhaust Solenoid VANOS Exhaust Solenoid
42 Output [PWM] Signal Fuel Tank Vent Valve Fuel Tank Vent Valve
43 Output [H-Bridge] Electric Throttle Body Actuator 1 Electric Throttle Body
44 Output [H-Bridge] Electric Throttle Body Actuator 2 Electric Throttle Body
45 Output [0/1] Characteristic Map Cooling Thermostat Thermostat
46 Output [H-Bridge] Idle Speed Actuator Closing Coil Idle Speed Actuator
47 Output [H-Bridge] Idle Speed Actuator Opening Coil Idle Speed Actuator
48 Ground Shield Knock Sensors Knock Sensors
49 Output [0/1] Variable Intake Manifold Flap (VIM/DISA) Variable Intake Manifold Flap (VIM/DISA)
50
51 Output [PWM] DMTL Heater Diagnostic Module Fuel Tank Leakage (With Heater)
52 Output [0/1] Signal Secondary Air Pump Valve Secondary Air Pump Valve

X60004 - Vehicle

X60004 40-pin
Pin Type Description / Signal type Connection / Measuring notes
1
2
3 Output [0/1] Signal Secondary Air Pump Relay Secondary Air Pump Relay
4 Output [PWM] Signal Electric Cooling Fan Electric Cooling Fan
5 Ground Secondary Air Pump MAF Sensor Secondary Air Pump MAF Sensor
6
7 Ground Pedal Value Sensor Accelerator Pedal
8 Input [0-5V] Signal Pedal Value Sensor 1 Accelerator Pedal
9 Output [+5V] Supply Voltage 1 Pedal Value Sensor Accelerator Pedal
10 Input Signal Fuel Pump Relay Fuel Pump Relay
11
12 Ground Pedal Value Sensor Accelerator Pedal
13 Input [0-5V] Signal Pedal Value Sensor 2 Accelerator Pedal
14 Output [+5V] Supply Voltage 2 Pedal Value Sensor Accelerator Pedal
15 Input [0-5V] Signal Secondary Air Pump MAF Sensor Secondary Air Pump MAF Sensor
16 Output Spare Output 4 Never Used In Production
17 Output Engine Speed Signal OBD-II Connector
18 Output [0/1] Signal Exhaust Flap Valve (M54B25xi & M54B30 Only) Exhaust Flap Valve
19
20 Input [0-5V] Signal Diagnostic Module Fuel Tank Leakage (DMTL) Diagnostic Module Fuel Tank Leakage
21
22 Input Signal Processed Wheel Speed Sensor Rear Right ABS/ASC or ABS/DSC Control Unit
23 Input [0-5V] Signal Clutch Switch Clutch Switch
24 Input [0-5V] Signal Brake Light Switch (BLS) Light Control Module
25
26 Input Voltage Supply Terminal 15 Fuse F29
27 I/O Data Link Multi Function Steering Wheel Volute Spring Steering Wheel
28 Input [0-5V] Signal Brake Light Test Switch (BTS) Brake Light Switch
29 Output [0/1] Signal A/C Compressor Relay (ACC_RLY) A/C Compressor Relay
30 Output [0/1] Signal Diagnostic Module Fuel Tank Leakage Pump (DMTL) Diagnostic Module Fuel Tank Leakage
31
32 I/O Engine Diagnostic Link TXD OBD-II Connector
33 [I/O] Electronic Vehicle Immobilisation Crosslink Electronic Vehicle Immobilisation Unit (EWS)
34 Input [0-5V] Input Fuel Cap Status Switch Diagnostic Module Fuel Tank Leakage
35
36 I/O CAN High CAN Bus Connector
37 I/O CAN Low CAN Bus Connector
38 Ground Coolant Outlet Temperature Coolant Outlet Temperature Sensor
39 Input [0-5V] Signal Coolant Outlet Temperature Coolant Outlet Temperature Sensor
40

X60005 - Ignition

X60005 9-pin
Pin Type Description / Signal type Connection / Measuring notes
1 Output Ignition Signal Cylinder 3 Ignition Coil Cylinder 3
2 Output Ignition Signal Cylinder 2 Ignition Coil Cylinder 2
3 Output Ignition Signal Cylinder 1 Ignition Coil Cylinder 1
4
5 Ground Ignition Coil Ground Ground Connector X6458
6 Input Signal Feedback Ignition Coils Ignition Coil Wiring Harness
7 Output Ignition Signal Cylinder 6 Ignition Coil Cylinder 6
8 Output Ignition Signal Cylinder 5 Ignition Coil Cylinder 5
9 Output Ignition Signal Cylinder 4 Ignition Coil Cylinder 4