| | 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:Check the condition of the air filter;Check the condition of the air intake circuit;Check that there are no obstructions in the exhaust pipe | Move on to Step 1 | Not enough fuel in the tank | Top up the fuel with the correct amount. |
| No pressure in the fuel circuit | Move on to Step 2 |
| Obstruction in the air intake circuit | Eliminate the problem, if necessary, replace the filter element Op. 1048A14 AIR CLEANER FILTER ELEMENT - REPLACE. |
| Air intake via the inlet 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 diagnostic equipment (Examiner or other instruments) to the diagnostic socket and check:- no faults in the engine management control unit;- parameter plausibility | End of diagnosis | Error detected in the control unit | Continue following the instructions on the diagnostic equipment. |
| Key not recognised by the Body Computer | Move on to Step 2 |
| CAN faulty | Restore CAN |
| Impossible to establish a dialogue with the engine control unit | Restore the correct engine control unit power supply See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT |
| 2 | KEY TRANSPONDER CHECK | All OK | Problems encountered | Operation |
|---|
| Try to use the emergency key and check the system recognises it correctly See E7010 CODE | Move on to Step 3 | Key not recognised | Move on to Step 2 |
| Key recognised | Replace the key with transponder and record it in the Body Computer memory |
| 3 | CODE AERIAL CHECK | All OK | Problems encountered | Operation |
|---|
| Check the condition of the CODE aerialCheck that it is correctly connected to the Body Computer See E7010 CODE | Move on to Step 4 | Aerial defective | Replace code aerial |
| CODE aerial wiring interrupted | Restore wiring continuity |
| 4 | BODY COMPUTER CHECK | All OK | Problems encountered | Operation |
|---|
| Check that the Body Computer recognises the key correctly | Move on to Step 5 | Fault persists | Replace body computer Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R. |
| 5 | FUEL SUPPLY CHECK | All OK | Problems encountered | Operation |
|---|
| Check the fuel supply pressure by carrying out See Test 1056BY FUEL SYSTEM SUPPLY PRESSURE CHECK See Test 1056BI FUEL SYSTEM RETURN PRESSURE CHECK See Test 1040AA CHECK ON SUPPLY VOLTAGE AND CURRENT UPTAKECheck the continuity of the wiring between the pump and the junction unit.Check that the pump relay is working properlyCheck the continuity of the wiring between the junction unit and the engine control unit See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT | Move on to Step 6 | 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 broken | Restore the correct wiring. |
| 6 | IGNITION SYSTEM CHECK | All OK | Problems encountered | Operation |
|---|
| Inspect the spark plugs and check their operationCheck for any defects in the high voltage leadsCheck for an ignition control signal See Test 5510CE IGNITION CONTROL SIGNAL CHECKCheck that the ignition coils are working by carrying out the See Test 5510CI IGNITION COIL OPERATION CHECK See Test 5510OB IGNITION COIL RESISTANCE CHECK | Move on to Step 7 | 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. |
| 7 | INJECTOR CHECK | All OK | Problems encountered | Operation |
|---|
| Using the Examiner in active diagnosis, check that the injectors are working properlyCheck that the injector needle seal is correctCheck the continuity of the injection wiring See Test 1056BA Injector operation checkCheck the operation of the main relay | Move on to Step 8 | 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 |
| 8 | CYLINDER COMPRESSION CHECK | All OK | Problems encountered | Operation |
|---|
| Carry out the cylinder compression check Op. 0510A10 CYLINDER COMPRESSION - CHECK FOR LOOSE SPARK PLUGS OR INJECTORS | Move on to Step 10 | Cylinder compression insufficient | Move on to Step 9 |
| 9 | CHECK ON CAUSE OF INSUFFICIENT COMPRESSION | All OK | Problems encountered | Operation |
|---|
| - R & R head for valve leakage test- Check condition of cylinders/piston rings | Move on to Step 10 | Valve seal insufficient | Restore the correct seal |
| Cylinders/piston rings worn | Overhaul the head |
| 10 | 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 |
