Connector X60001 (9-Pin, Black) — Power & Grounds
Below is the complete hardware pinout matrix for the 134-Pin Modular Header Standard (X60001 through X60005), detailing exact wiring pinouts for Siemens MS42, MS43, MS45.1, and MSS54:
18.1 Connector X60001 (9-Pin, Black) — Power & Grounds#
| Pin | Function Name | Circuit Direction | Electrical Level | Terminal Designation |
|---|
| 1 | Main Power Relay Output | Input to DME | +12 ext{V} Switched | KL87 |
| 2 | DME Main Relay Trigger | Output from DME | Low-Side Ground Pulse | Coil Trigger |
| 3 | Unswitched Battery Power | Input to DME | +12 ext{V} Constant | KL30 |
| 4 | Electronics Chassis Ground | Ground Return | 0 ext{V} Reference | KL31 |
| 5 | Electronics Chassis Ground | Ground Return | 0 ext{V} Reference | KL31 |
| 6 | Electronics Chassis Ground | Ground Return | 0 ext{V} Reference | KL31 |
| 7 | Ignition Key Run/Start | Input to DME | +12 ext{V} Switched Run | KL15 |
| 8 | Unswitched Battery Power | Input to DME | +12 ext{V} Constant | KL30 |
| 9 | Unused / Secondary Relay | Spare | Open / Switched Ground | Aux |
18.2 Connector X60002 (24-Pin, Black) — Ignition Drivers#
| Pin | Function Name | Connected Component | Signal Type | Wire Color |
|---|
| 1 | Ignition Coil 1 Primary Trigger | Cylinder 1 Spark Plug | Low-Side Ground Pulse | Black/Blue |
| 2 | Ignition Coil 2 Primary Trigger | Cylinder 2 Spark Plug | Low-Side Ground Pulse | Black/Red |
| 3 | Ignition Coil 3 Primary Trigger | Cylinder 3 Spark Plug | Low-Side Ground Pulse | Black/Brown |
| 4 | Ignition Coil 4 Primary Trigger | Cylinder 4 Spark Plug | Low-Side Ground Pulse | Black/Green |
| 5 | Ignition Coil 5 Primary Trigger | Cylinder 5 Spark Plug | Low-Side Ground Pulse | Black/White |
| 6 | Ignition Coil 6 Primary Trigger | Cylinder 6 Spark Plug | Low-Side Ground Pulse | Black/Yellow |
| 7–12 | Secondary Coil Ground Loops | Ignition Harness Bar | Dedicated Secondary Ground | Brown |
| 13–24 | RF Ground Shielding | Braided Harness Shield | High-Frequency Ground Return | Shield Ground |
18.3 Connector X60003 (52-Pin, Black) — Sensors & Engine Bay Actuators#
| Pin | Function | Sensor / Actuator | Signal Type | Range / Spec |
|---|
| 1 | Intake VANOS Solenoid | Solenoid Valve (Intake) | PWM Low-Side Ground | 100 ext{ Hz}, 0\dots 100\% |
| 2 | Exhaust VANOS Solenoid | Solenoid Valve (Exhaust) | PWM Low-Side Ground | 100 ext{ Hz}, 0\dots 100\% |
| 3 | DISA Resonance Flap | Variable Intake Valve | Low-Side Ground Switch | 0 ext{V} / 12 ext{V} |
| 4 | Cam Sensor Intake | Hall Effect Sensor | Square Wave Digital | 0\dots 5 ext{V} |
| 5 | Cam Sensor Exhaust | Hall Effect Sensor | Square Wave Digital | 0\dots 5 ext{V} |
| 6 | Crankshaft Sensor (CKP) | 60-2 Trigger Wheel | Differential VR / Hall | Frequency \propto RPM |
| 17 | Airbox MAP (MSS54HP) | CSL 1-Bar MAP Sensor | Analog Voltage | 0.5\dots 4.5 ext{V} |
| 18 | Aux MAP (MS43X Turbo) | 3-Bar / 4-Bar MAP Sensor | Analog Voltage | 0\dots 5 ext{V} |
| 23 | Throttle Potentiometer 1 | MDK / EDK Blade Wiper | Analog Voltage | 0.5\dots 4.5 ext{V} |
| 24 | Throttle Potentiometer 2 | MDK / EDK Redundant Wiper | Inverted Analog | 4.5\dots 0.5 ext{V} |
| 31 | Airflow Sensor (MAF) | Bosch HFM5 Hot-Film | Analog Voltage | 0.2\dots 4.8 ext{V} |
| 32 | MAF Sensor Ground | Isolated Ground Return | Clean Sensor Ground | 0.0 ext{V} |
| 37 | Coolant Temp Sensor (ECT) | NTC Thermistor | Analog Resistance | 2.5 ext{k}\Omega\dots 200\Omega |
| 38 | Intake Air Temp (IAT) | NTC Thermistor | Analog Resistance | 2.5 ext{k}\Omega\dots 200\Omega |
| 41–42 | Knock Sensor 1 | Piezo Accelerometer (1-3) | AC Differential Voltage | Resonance 6.5 ext{ kHz} |
| 43–44 | Knock Sensor 2 | Piezo Accelerometer (4-6) | AC Differential Voltage | Resonance 6.5 ext{ kHz} |
18.4 Connector X60004 (40-Pin, Grey) — Body Harness, Bus Communications & Pedal#
| Pin | Function | External Module | Signal / Protocol | Engineering Role |
|---|
| 7 | Pedal Pot 1 Reference | Accelerator Pedal (PWG) | +5.0 ext{V} Regulated | Power Supply |
| 8 | Pedal Pot 1 Signal | Accelerator Pedal (PWG) | Analog (0.5\dots 4.5 ext{V}) | Driver Torque Demand |
| 9 | Pedal Pot 1 Ground | Accelerator Pedal (PWG) | Isolated Ground | Reference Return |
| 12 | Pedal Pot 2 Reference | Accelerator Pedal (PWG) | +5.0 ext{V} Regulated | Power Supply |
| 13 | Pedal Pot 2 Signal | Accelerator Pedal (PWG) | Inverted (0.25\dots 2.25 ext{V}) | Plausibility Cross-Check |
| 14 | Pedal Pot 2 Ground | Accelerator Pedal (PWG) | Isolated Ground | Reference Return |
| 22 | Boost Control / Purge | MAC Boost Solenoid / Purge | PWM Low-Side Driver | 20\dots 40 ext{ Hz} |
| 23 | Clutch Pedal Switch | Clutch Master Cylinder | Ground Active Switched | Launch Control Interlock |
| 24 | Brake Light Switch (BLS) | Brake Pedal Switch | +12 ext{V} Active Switched | Torque Safety Cut |
| 25 | Brake Test Switch (BLTS) | Brake Pedal Switch | Ground Active Switched | Inverted Plausibility |
| 26 | PT-CAN High (CAN_H) | Drivetrain CAN Bus | ISO 11898 (500 ext{ kbps}) | High-Speed CAN High |
| 27 | PT-CAN Low (CAN_L) | Drivetrain CAN Bus | ISO 11898 (500 ext{ kbps}) | High-Speed CAN Low |
| 32 | BMW Diagnostic K-Line | OBD-II Diagnostic Port Pin 7 | ISO 9141 / DS2 (9600 ext{ baud}) | Diagnostics & Flashing |
| 33 | EWS Serial Data Line | EWS-III Control Unit | Bidirectional Serial Link | Rolling Code Anti-Theft |
18.5 Connector X60005 (9-Pin, Black) — Fuel Injectors#
| Pin | Function Name | Connected Component | Signal Type | Typical Wire Color |
|---|
| 1 | Injector 1 Low-Side Driver | Cylinder 1 Fuel Injector | Saturated Low-Side Pulse | Brown/White |
| 2 | Injector 2 Low-Side Driver | Cylinder 2 Fuel Injector | Saturated Low-Side Pulse | Brown/Yellow |
| 3 | Injector 3 Low-Side Driver | Cylinder 3 Fuel Injector | Saturated Low-Side Pulse | Brown/Blue |
| 4 | Injector 4 Low-Side Driver | Cylinder 4 Fuel Injector | Saturated Low-Side Pulse | Brown/Green |
| 5 | Injector 5 Low-Side Driver | Cylinder 5 Fuel Injector | Saturated Low-Side Pulse | Brown/Black |
| 6 | Injector 6 Low-Side Driver | Cylinder 6 Fuel Injector | Saturated Low-Side Pulse | Brown/Violet |
| 7–9 | Injector Power Grounds | Cylinder Head Ground Stud | High-Current Ground Return | Brown |