U1700 CAN network (NCM

			Test results
1	COMPONENT CONCERNED	ENGINE MANAGEMENT CONTROL UNIT CONNECTIONS CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Engine management control unit connections	Check that the CAN connections between the engine management control unit and the Body Computer are not faulty. In particular, that there are no open circuit or short circuit problems See E1050 CAN CONNECTION LINES	Go to Step 2	There are faulty connections	Restore or, if necessary, replace the wiring
2	COMPONENT CONCERNED	BODY COMPUTER POWER SUPPLY CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Body computer	Check that the Body Computer power supply is correct	Go to Step 3	Power supply not correct	Restore the correct power supply
3	COMPONENT CONCERNED	CHECK USING DIAGNOSIS EQUIPMENT	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	CAN line	Connect the Examiner diagnosis equipment and check whether the error is present	Go to Step 4	The error is intermittent	Proceed with deleting the error and explain to the customer that nothing has happened to the vehicle
4	COMPONENT CONCERNED	ENGINE MANAGEMENT CONTROL UNIT OPERATION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Engine management control unit	Check that the engine management control unit is working correctly	Go to Step 5	Incorrect operation of engine management control unit	Replace the engine management control unit Op. 1060G80
5	COMPONENT CONCERNED	BODY COMPUTER OPERATION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Body computer	Check that the Body Computer is working correctly	End of diagnosis	Body Computer not working correctly	Replace Body Computer Op. 5505A35