		Test results
0	PRELIMINARY CHECKS	All OK	Problems encountered	Operation
	Check that there is enough fuel in the tank. Turn the ignition switch ON for 2 seconds and then OFF. Check that the fuel pipe feels the pressure with the ignition ON. Check: - the condition of the air filter; - the condition of the air intake circuit; - That there are no obstructions in the exhaust pipe	Go to Step 1	Not enough fuel in the tank	Top up the fuel with the correct amount.
			No pressure in the fuel circuit	Go to Step 2.
			Obstruction in the air intake circuit	Eliminate the problem, if necessary, replace the filter element Op. 1048A14 AIR FILTER FILTER ELEMENT - REPLACE
			Air intake via intake manifold/throttle body seal	Restore the correct seal
			Exhaust pipe blocked	Restore the operation of the exhaust pipe.
1	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Connect the diagnosis equipment (Examiner or other instruments) to the diagnosis socket and check: - that there are no errors in the engine management control unit; - parameter plausibility	End of diagnosis	Error detected in the control unit	Continue following the instructions on the diagnosis equipment.
		End of diagnosis	Parameter not consistent	Continue following the instructions on the diagnosis equipment.
2	IGNITION SWITCH CHECK	All OK	Problems encountered	Operation
	Check that the ignition switch is working correctly See E5010 STARTING AND RECHARING	Go to Step 3	Switch defective - contacts loose	Replace the ignition switch Op. 5520A10 IGNITION SWITCH ASSEMBLY - R+R
3	RPM SIGNAL CHECK	All OK	Problems encountered	Operation
	Check that the rpm sensor is working properly	Go to Step 4	Sensor defective	Replace the sensor
	Check that the rpm sensor is working properly	Go to Step 4	Wiring defective	Restore the correct wiring.
4	FUEL SUPPLY CHECK	All OK	Problems encountered	Operation
	Check the fuel supply pressure by carrying out See Test 1056BY FUEL SYSTEM SUPPLY PRESSURE CHECK Check the continuity of the wiring between the pump and the junction unit. Check that the pump relay is working properly Check the continuity of the wiring between the junction unit and the engine management control unit See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT	Go to Step 5	Fuel pressure too low: pipes obstructed	Eliminate the constrictions
			Fuel pressure too low: pump defective	Replace the pump assembly Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R
			Wiring interrupted	Restore the correct wiring.
5	IGNITION SYSTEM CHECK	All OK	Problems encountered	Operation
	Inspect the spark plugs and check their operation Check for any defects in the high voltage leads Check for the ignition control signal by carrying out the See Test 5510CE IGNITION CONTROL SIGNAL CHECK Check the operation of the ignition coils by carrying out See Test 5510CI CHECK ON OPERATION OF IGNITION COILS	Go to Step 6	Spark plugs defective	Replace spark plugs Op. 5510D10 SPARK PLUGS - R+R
			High voltage cable connection leaking	Replace HV cables
			High voltage cable connection slack	Tighten HV cable correctly
			Ignition signal interrupted	Restore the ignition signal
			Coils defective	Replace coils Op. 5510C14 IGNITION COIL/S - R.R.
6	INJECTOR CHECK	All OK	Problems encountered	Operation
	Using the Examiner in active diagnosis, check that the injectors are working properly Check that the injector needle seal is correct Check the continuity of the injection wiring See Test 1056BA INJECTOR OPERATION CHECK Check the operation of the main relay	Go to Step 7	Injectors stuck/incorrectly adjusted	Replace the injector Op. 1056B70 INJECTOR (ONE) - R + R WITH FUEL MANIFOLD PIPE REMOVED - INCLUDES SEAL REPLACEMNT
			Connections not correct	Restore the correct connections See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT
			Main relay defective	Replace the relay
7	CYLINDER COMPRESSION CHECK	All OK	Problems encountered	Operation
	Carry out the cylinder compression test Op. 0510A10 CYLINDER COMPRESSION - CHECK FOR LOOSE SPARK PLUGS OR INJECTORS	Go to Step 9	Cylinder compression insufficient	Go to Step 8
8		All OK	Problems encountered	Operation
	CAUSE OF INSUFFICIENT COMPRESSION CHECK - R.R. the head to check the valve seal - Check the condition of the cylinders/piston rings	Go to Step 9	Valve seal insufficient	Restore the correct seal.
		Go to Step 9	Cylinders/piston rings worn	Overhaul the head.
9	ENGINE CONTROL UNIT CHECK	All OK	Problems encountered	Operation
	Check that the engine control unit is working properly.	End of diagnosis	Engine management control unit defective	Replace the engine management control unit Op. 1056B82 INJECTION/IGNITION SYSTEM E.C.U. (ONE) - R + R

The engine does not start. When the key is turned the instruments light up as normal, the starter motor turns, but the engine does not start up

The "VEHICLE PROTECTION" system works properly.