Engine description Electrics/Electronics 1 Fuel transducer 2 Coolant temperature transmitter 3 Charge air pressure transmitter, charge air tem- perature transmitter TCD 2012/2013 L06 4 Charge air pressure transmitter, charge air tem- perature transmitter TCD 2012/2013 L04 5 Engine control unit 6 Central plug (for engine control) 7 Speed transmitter via crankshaft 8 Rail pressure sensor 9 Lubricating oil level transmitter (optional) 10 Lubricating oil pressure transmitter 11 Fuel transducer 12 Speed transmitter via camshaft 13 Power supply (battery) 14 Multifunction displays 15 Signal outputs, e.g. for lamps, torque (PWM), speed, engine operation, etc. 16 Inputs (e.g.
override button) 17 Accelerator 18 Hand throttle 19 Optional function selector switch, e.g. for P de- gree, type of controls, maximum curve etc. 20 Detachable key switch Start/Stop 21 Diagnosis button 22 Error lamp 23 Diagnostic interface/CAN bus 22 © 2009 Electronic engine control Equipment side Engine side 13 14 15 16 17 18 19 20 21 22 23 3 2 1 5 7 8 9 10 4 6 12 11 2