Component description Control unit plug connector Pin arrangement 19 1 . . . . . . . . . . . . . . . . . . 37 20 . . . . . . . . . . . . . . . . . 55 38 . . . . . . . . . . . . . . . . .
Pin assignments of control unit plug connector EDC Pin Connection to component (O=Output, I=Input) 1 Injection pump controller pin 8 O Jumper to pin 2 (activation of fuel-delivery regulator) O 2 Jumper to pin 1 (activation of fuel-delivery regulator) O 3 Not used 4 Not used 5 Not used 6 Not used 7 Not used 8 Not used 9 Injection pump controller pin 5 (control rod position transducer, instrument coil) 10 Injection pump controller pin 1 (control rod position transducer, reference coil) 11 Injection pump controller pin 6 (control rod position transducer, centre pick-off) 12 Not used 13 Negative from control unit for (Sensor ground) Speed sensor boost pressure sensor pedal value transmitter (hand throttle signal) boost air temperature sensor coolant temperature sensor resistor bank (in the EDC operating element) Fuel temperature sensor 14 Electrohydraulic shut-off valve EHAB O 15 Control unit power supply batt.
+ (via main relay and fuse) I 16 Control unit power supply batt. + (via main relay and fuse) I 17 Ground for auxiliary rpm sensor 18 Power supply batt. – 19 Power supply batt. – 20 EDC indicator lamp and diagnostic lamp O 21 RPM sensor (twisted with cable pin 13) I 22 Auxiliary rpm sensor (twisted with cable pin 17) I 23 Not used 11