939010279 - 5505AE ENGINE MANAGEMENT CONTROL UNIT POWER SUPPLY FUSE CIRCUIT CHECK

STEP	CHECK TO BE PERFORMED	RESOLUTION IF THE CHECK IS NOT OK
1	Press the START/STOP button and turn off the engine.Turn off all the electrical users.Reinsert fuse F18 in the engine compartment junction unit basePress the START/STOP button and check that the fuse cuts in	A temporary current overload has occurred in the system behind fuse F18.
2	Disconnect the cable loom connector from the engine management control unit connector A.Refit fuse F18 in the control unit base    See B001 JUNCTION UNIT and check it cuts in	Replace the engine management control unit    Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - .R
3	If faults occur, repair or if necessary replace the engine compartment junction unit wiring    See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT	Replace the engine compartment junction unit    Op. 5505A13 ADDITIONAL JUNCTION UNIT IN ENGINE COMPARTMENT - R.R.