Siemens MS43 Pinout

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	Name	Wire	Description / Signal type	Connection / Measuring notes
1	Input	U_15	0.5 GN	Voltage Supply Terminal 15	Fuel Injector Relay K6327
2
3	I/O	D_TXD2	0.5 WS/VI	Diagnostic Link TXD	K-Line
4	Ground	31E	1.5 BR/OR	Ground	Ground Connector X6454
5	Ground	31L	1.5 BR	Ground	Ground Connector X6458
6	Ground	31L	1.5 BR	Ground	Ground Connector X6458
7	Input	30H<102	1.5 RT	Voltage Supply Terminal 30	B+ Potential Distributor A2076
8	Input	U_HR<2	1.5 RT/WS/GE	Voltage Supply Terminal 87	Fuse Carrier Engine Electronics A8680
9	Input	U_HR<2	1.5 RT/WS/GE	(optional) Fuel Injector Supply Voltage	(optional) Fuel Injector Relay K6327

X60002 - Peripherals

X60002 24-pin
Pin	Type	Name	Wire	Description / Signal type	Connection / Measuring notes
1	Output	T_LHV1	0.50 BR	[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	D_CAN--L	0.35 SW	Gearbox CAN-Low	Transmission Control Unit A7000 (AT/SMG only)
4	I/O	D_CAN--H	0.35 GE	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	D_TXD2	0.50 WS/VI	Gearbox Diagnostic Link TXD2	Transmission Control Unit A7000 (AT/SMG only)
7	Output	T_LHH1	0.50 BR	[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	U_HR<2	0.50 RT/WS	[0/1] Pencil Coil Detection	ECU Main Relay With Pencil Coils
13	Output	T_LHV2	0.50 BR	[PWM] O2 Sensor Heater Pre-Cat Bank 2	Heated O2 Sensor Pre-Cat Bank 2 B62201
14	Input	A_LSV1	0.50 GE	[0-5V] Signal O2 Sensor Pre-Cat Bank 1	Heated O2 Sensor Pre-Cat Bank 1 B62101
15	Input	A_LSV2	0.50 GE	[0-5V] Signal O2 Sensor Pre-Cat Bank 2	Heated O2 Sensor Pre-Cat Bank 2 B62201
16	Input	A_LSH1	0.50 GE	[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	A_LSH2	0.50 GE	[0-5V] Signal O2 Sensor Post-Cat Bank 2	Heated O2 Sensor Post-Cat Bank 2 B62202
19	Output	T_LHH2	0.50 BR	[PWM] O2 Sensor Heater Post-Cat Bank 2	Heated O2 Sensor Post-Cat Bank 2 B62202
20	Ground	M_LSV1	0.50 SW	O2 Sensor Pre-Cat Bank 1	Heated O2 Sensor Pre-Cat Bank 1 B62101
21	Ground	M_LSV2	0.50 SW	O2 Sensor Pre-Cat Bank 2	Heated O2 Sensor Pre-Cat Bank 2 B62201
22	Ground	M_LSH1	0.50 SW	O2 Sensor Post-Cat Bank 1	Heated O2 Sensor Post-Cat Bank 1 B62102
23	Output	S_HR	0.50 BR/WS	[0/1] ECU Main Relay Control	ECU Main Relay K6300
24	Ground	M_LSH2	0.50 SW	O2 Sensor Post-Cat Bank 2	Heated O2 Sensor Post-Cat Bank 2 B62202

X60003 - Engine

X60003 52-pin
Pin	Type	Name	Wire	Description / Signal type	Connection / Measuring notes
1	Input	A_HFM	0.50 GE	[0-5V] Signal Hot Film Mass Air Flow Sensor	Hot Film Mass Air Flow Sensor
2	Input	P_NWGA1	0.50 GE	Signal Exhaust Camshaft Sensor	Exhaust Camshaft Sensor
3	Output			Spare Output 1	Never Used In Production
4
5	Input	P_NWGE1	0.50 GE	Signal Intake Camshaft Sensor	Intake Camshaft Sensor
6
7	Output	U_DKG	0.50 BR/WS	[+5V] Voltage Supply Electric Throttle Body	Electric Throttle Body
8	Input	P_KWG	0.50 GE	Signal Crankshaft Sensor	Crankshaft Sensor
9
10	Input	A_DKG2	0.50 BR/BL	[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	M_NWGA1	0.50 BR	Exhaust Camshaft Sensor	Exhaust Camshaft Sensor
16
17	Ground	M_HFM	0.50 SW	Hot Film Mass Air Flow Sensor	Hot Film Mass Air Flow Sensor
18	Ground	M_NWGE1	0.50 BR	Intake Camshaft Sensor	Intake Camshaft Sensor
19	Input	A_DKG1	0.50 BR/VI	[0-5V] Signal Electric Throttle Body Potentiometer 1	Electric Throttle Body
20	Ground	M_DKG	0.50 BR/GR	Electric Throttle Body	Electric Throttle Body
21	Input	M_KWG	0.50 BR	Ground Crankshaft sensor	Crankshaft sensor
22	Output	A_TANS	0.50 GR	[0-5V] Signal Intake Air Temperature	Intake Air Temperature Sensor
23	Ground	M_TANS	0.50 GR/BR	Intake Air Temperature	Intake Air Temperature Sensor
24	Output	A_TMOT	0.50 BR/RT	[0-5V] Signal Coolant Temperature	Coolant Temperature Sensor
25	Ground	M_TMOT	0.50 GR/BR	Coolant Temperature	Coolant Temperature Sensor
26
27	Output	A_TOEL	0.50 RT/BL	[0-5V] Signal Engine Oil Temperature	Oil Temperature Sensor
28	Ground	M_TOEL	0.50 GR/BR	Engine Oil Temperature	Oil Temperature Sensor
29	Input	A_KS1A	0.50 GE	Signal Knock Sensor 1A	Knock Sensor Cylinder 1-3
30	Input	A_KS1B	0.50 SW	Signal Knock Sensor 1B	Knock Sensor Cylinder 1-3
31	Input	A_KS2A	0.50 GN	Signal Knock Sensor 2A	Knock Sensor Cylinder 4-6
32	Input	A_KS2B	0.50 BR	Signal Knock Sensor 2B	Knock Sensor Cylinder 4-6
33	Output	P_EVZ1	0.75 BR/WS	[0/1] Signal Fuel Injector Cylinder 1	Fuel Injector Cylinder 1 Y6101 Pin 1
34	Output	P_EVZ2	0.75 BR/RT	[0/1] Signal Fuel Injector Cylinder 2	Fuel Injector Cylinder 2 Y6102 Pin 1
35	Output	P_EVZ3	0.75 BR/GE	[0/1] Signal Fuel Injector Cylinder 3	Fuel Injector Cylinder 3 Y6103 Pin 1
36	Output	P_EVZ4	0.75 BR/BL	[0/1] Signal Fuel Injector Cylinder 4	Fuel Injector Cylinder 4 Y6104 Pin 1
37	Output	P_EVZ5	0.75 BR/GN	[0/1] Signal Fuel Injector Cylinder 5	Fuel Injector Cylinder 5 Y6105 Pin 1
38	Output	P_EVZ6	0.75 BR/VI	[0/1] Signal Fuel Injector Cylinder 6	Fuel Injector Cylinder 6 Y6106 Pin 1
39
40	Output	T_NWE1	0.50 GN/BL	[PWM] Signal VANOS Intake Solenoid	VANOS Intake Solenoid
41	Output	T_NWA1	0.50 GN/VI	[PWM] Signal VANOS Exhaust Solenoid	VANOS Exhaust Solenoid
42	Output	T_TEV	0.50 BR	[PWM] Signal Fuel Tank Vent Valve	Fuel Tank Vent Valve
43	Output	T_MDK1	0.75 GR/WS	[H-Bridge] Electric Throttle Body Actuator 1	Electric Throttle Body
44	Output	T_MDK2	0.75 BR/SW	[H-Bridge] Electric Throttle Body Actuator 2	Electric Throttle Body
45	Output	S_KFK	0.50 GR/BR	[0/1] Characteristic Map Cooling Thermostat	Thermostat
46	Output	T_LLFSS	0.50 WS/GN	[H-Bridge] Idle Speed Actuator Closing Coil	Idle Speed Actuator
47	Output	T_LLFSO	0.50 WS/GE	[H-Bridge] Idle Speed Actuator Opening Coil	Idle Speed Actuator
48	Ground	M_KS	Shielding	Shield Knock Sensors	Knock Sensors
49	Output	S_DISA	0.50 BR/BL	[0/1] Variable Intake Manifold Flap (VIM/DISA)	Variable Intake Manifold Flap (VIM/DISA)
50
51	Output	DMTLH	0.75 SW/RT	[PWM] DMTL Heater	Diagnostic Module Fuel Tank Leakage (With Heater)
52	Output	S_SLV	0.50 BR/WS	[0/1] Signal Secondary Air Pump Valve	Secondary Air Pump Valve

X60004 - Vehicle

X60004 40-pin
Pin	Type	Name	Wire	Description / Signal type	Connection / Measuring notes
1
2
3	Output	S_SLP	0.35 BR/BL	[0/1] Signal Secondary Air Pump Relay	Secondary Air Pump Relay
4	Output	T_ELUE	0.50 SW/GN	[PWM] Signal Electric Cooling Fan	Electric Cooling Fan
5	Ground	M_SHFM	0.50 SW/GE	Secondary Air Pump MAF Sensor	Secondary Air Pump MAF Sensor
6
7	Ground	M_FWG1	0.35 BR/GN	Pedal Value Sensor	Accelerator Pedal
8	Input	A_FWG1	0.35 WS	[0-5V] Signal Pedal Value Sensor 1	Accelerator Pedal
9	Output	U_FWG1	0.35 GE	[+5V] Supply Voltage 1 Pedal Value Sensor	Accelerator Pedal
10	Input	S_EKP	0.35 SW/VI	Signal Fuel Pump Relay	Fuel Pump Relay
11
12	Ground	M_FWG2	0.35 BR	Pedal Value Sensor	Accelerator Pedal
13	Input	A_FWG2	0.35 WS/GN	[0-5V] Signal Pedal Value Sensor 2	Accelerator Pedal
14	Output	U_FWG2	0.35 GE/GN	[+5V] Supply Voltage 2 Pedal Value Sensor	Accelerator Pedal
15	Input	A_SHFM	0.50 SW/RT	[0-5V] Signal Secondary Air Pump MAF Sensor	Secondary Air Pump MAF Sensor
16	Output			Spare Output 4	Never Used In Production
17	Output	F_TD	0.35 SW	Engine Speed Signal	OBD-II Connector
18	Output	S_AKL	0.50 GR/VI	[0/1] Signal Exhaust Flap Valve	Exhaust Flap Valve (xi & B30 only)
19	Output
20	Input	DMTL	0.50 SW/GN	[0-5V] Signal DMTL	Diagnostic Module Fuel Tank Leakage
21
22	Input	F_DFAHR	0.35 WS/GN	Signal Processed Wheel Speed Sensor Rear Right	ABS/ASC or ABS/DSC Control Unit
23	Input	S_KUP	0.35 BL/BR	[0-5V] Signal Clutch Switch	Clutch Switch
24	Input	S_BLS	0.35 BL/RT	[0-5V] Signal Brake Light Switch (BLS)	Light Control Module
25
26	Input	15<29	0.50 GN/VI	Voltage Supply Terminal 15	Fuse F29
27	Input	FGRS	0.35 BL/SW	Data Link Multi Function Steering Wheel	Volute Spring Steering Wheel
28	Input	S_BLTS	0.35 BR/GR	[0-5V] Signal Brake Light Test Switch (BTS)	Brake Light Switch
29	Output	S_KOREL	0.50 SW/BL	[0/1] Signal A/C Compressor Relay (ACC_RLY)	A/C Compressor Relay
30	Output	DMTLP	0.75 BR/BL	[0/1] Signal DMTL Pump	Diagnostic Module Fuel Tank Leakage
31
32	I/O	D_TXD2	0.50 WS/VI	Engine Diagnostic Link TXD	OBD-II Connector
33	I/O	D_EWS	0.35 SW/VI	Electronic Vehicle Immobilisation Crosslink	Electronic Vehicle Immobilisation Unit (EWS)
34	Input			[0-5V] Input Fuel Cap Status Switch	Diagnostic Module Fuel Tank Leakage
35	Ground	31	0.50 BR/OR	Cruise control interface	Cruise control interface (Z3 only)
36	I/O	D_CAN--H	0.50 GE/RT	CAN High	CAN Bus Connector
37	I/O	D_CAN--L	0.50 GE/BR	CAN Low	CAN Bus Connector
38	Ground	M_TKA	0.35 SW/GN	Coolant Outlet Temperature	Coolant Outlet Temperature Sensor
39	Input	A_TKA	0.35 SW/GR	[0-5V] Signal Coolant Outlet Temperature	Coolant Outlet Temperature Sensor
40

X60005 - Ignition

X60005 9-pin
Pin	Type	Name	Wire	Description / Signal type	Connection / Measuring notes
1	Output	P_ZSZ3	1.5 SW/GE	Ignition Signal Cylinder 3	Ignition Coil Cylinder 3
2	Output	P_ZSZ2	1.5 SW/RT	Ignition Signal Cylinder 2	Ignition Coil Cylinder 2
3	Output	P_ZSZ1	1.5 SW/WS	Ignition Signal Cylinder 1	Ignition Coil Cylinder 1
4
5	Ground	31L	2.5 BR	Ignition Coil Ground	Ground Connector X6458
6	Input	A_ZSR	0.5 BR	Signal Feedback Ignition Coils	Ignition Coil Wiring Harness
7	Output	P_ZSZ6	1.5 SW/VI	Ignition Signal Cylinder 6	Ignition Coil Cylinder 6
8	Output	P_ZSZ5	1.5 SW/GN	Ignition Signal Cylinder 5	Ignition Coil Cylinder 5
9	Output	P_ZSZ4	1.5 SW/BL	Ignition Signal Cylinder 4	Ignition Coil Cylinder 4