Engine does not start (starter motor working)

Make: Fiat
Model: Bravo Factory Service Manual
Year: 2007–2014
Section: Starting › Engine does not start (starter motor working)

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Fault diagnosisEngine does not start (starter motor working)

ENGINE DOES NOT START (STARTER MOTOR WORKING)

1.4 16v

The customer complains that: The engine does not start, the starter motor is working normally

0	PRELIMINARY CHECKS	All OK	Problems encountered	Operation
		Test results
	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
		Move on to Step 3	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 aerial Check that it is correctly connected to the Body Computer	Move on to Step 4	Aerial defective	Replace code aerial
		Move on to Step 4	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 Op. 0520G46 FUEL SYSTEM - CHECK SUPPLY PRESSURE USING THE EXAMINER 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 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 operation Check for any defects in the high voltage leads Check for an ignition control signal See Test 5510CE IGNITION CONTROL SIGNAL CHECK Check that the ignition coils are working by carrying out the See Test 5510CH Check on operation of knock sensor	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 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	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	Restore the correct connections See E5030 PETROL ENGINES ELECTRONIC MANAGEMENT
8	CYLINDER COMPRESSION CHECK	All OK	Problems encountered	Operation
	Carry out the cylinder compression check Op. 0520G15 COMPRESSION TEST - CHECK WITH EXAMINER WITH SPARK PLUGS/INJECTORS REMOVED	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.
		Move on to Step 10	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

1.9 JTD 8v, 1.9 JTD 16v

The customer complains that: The engine does not start, the starter motor is working normally

0	PRELIMINARY CHECKS	All OK	Problems encountered	Operation
		Test results
	Check that the engine oil level is correct Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY Check that the air intake/vacuum circuit is working properly See Test 1048OA AIR INTAKE/VACUUM CIRCUIT CHECK Check the condition of the fuel supply circuit and make sure that it is working properly See Test 1040OA Fuel supply circuit check	Move on to Step 1	Oil level incorrect	Restore the correct oil level Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY
1	MODE PARAMETERS CHECK	All OK	Problems encountered	Operation
	Select the following control unit at the diagnostic equipment: EDC16C39 Diesel electronic injection control unit. Check the value of the following parameters: · Battery voltage See Test 5530BB BATTERY VOLTAGE CHECK · Target Diesel pressure · Measured Diesel pressure See Test 1060GH DIESEL PRESSURE CHECK · Engine rpm	Move on to Step 2
2	PARTICULATE FILTRATION SYSTEM CHECKS	All OK	Problems encountered	Operation
	Check that the DPF system is working properly See Test 1080BE PARTICLE FILTER SATURATION CHECK	Move on to Step 3
3	PREHEATING RELAY ACTIVE DIAGNOSIS	All OK	Problems encountered	Operation
	Carry out the active diagnosis for the preheating relay, checking that the result is positive. The check on the following system is only necessary if the outside temperature is below 0 °C.	Move on to Step 5	The result of the active diagnosis is negative	Move on to Step 4
4	HEATER PLUGS CHECK	All OK	Problems encountered	Operation
	Check that the glow heater plugs are working properly, by carrying out the See Test 5520CA GLOW HEATER PLUGS OPERATION CHECK	Move on to Step 5
5	HIGH PRESSURE CHECK	All OK	Problems encountered	Operation
	Connect the diagnostic equipment to the diagnostic socket. Check as described in the See Test 1060OD Injector high pressure fuel circuit check that the diesel pressure parameter is correct	Move on to Step 6	Pressure not correct	Move on to Step 12
6	LOW RETURN PRESSURE CHECK	All OK	Problems encountered	Operation
	Check as described in the See Test 1060OA Low pressure fuel return circuit check that the pressure in the return pipe to the tank is less than 1 bar	Move on to Step 7	Pressure above the maximum limit: return pipe to the tank obstructed	Repair the pipe; if necessary, replace it
7	LOW SUPPLY PRESSURE CHECK	All OK	Problems encountered	Operation
	Check as described in the See Test 1060OB Low pressure fuel supply circuit check that the diesel pressure between the filter and the pressure pump is between 2 and 3 bar	Move on to Step 8	Pressure below the minimum limit or above the maximum limit	Move on to Step 11
8	LOW SUPPLY PRESSURE CHECK	All OK	Problems encountered	Operation
	Check by carrying out the See Test that the difference in pressure upstream and downstream of the filter is less than 0.5 bar	Move on to Step 9	Difference in pressure more than 0.5 bar	Replace the fuel filter Op. 1044B10 FUEL FILTER ASSEMBLY - R + R OR REPLACE
9	LOW SUPPLY PRESSURE CHECK	All OK	Problems encountered	Operation
	Check that the difference in pressure upstream and downstream of the filter is less than 2.2 bar	Move on to Step 10	Pressure below 2 bar	Move on to Step 11
10	LOW SUPPLY PRESSURE CHECK	All OK	Problems encountered	Operation
	Measure the difference in pressure between the electrical pump outlet and the filter inlet, checking that it is less than 0.3 bar	Move on to Step 13	Difference in pressure more than 0.3 bar	Replace the pipe
11	LOW SUPPLY PRESSURE CHECK	All OK	Problems encountered	Operation
	Check as described in the See Test 1040AA CHECK ON SUPPLY VOLTAGE AND CURRENT UPTAKE that the pump supply voltage is equal to 12V and that the current uptake is between 2 and 10 A	Move on to Step 16	Voltage lower than 12 V	Check electrical wiring See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT
			Current greater than 10 A: pump defective	Replace the fuel pump Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R
			Current less than 2 A: pump obstructed	Replace the fuel pump Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R and clean the fuel tank
12	CHECK CORRECT OPERATION	All OK	Problems encountered	Operation
	Replace the high pressure pump Op. 1060E10 DIESEL INJECTION PRESSURE PUMP - R.R. and check that the fault is no longer present	End of diagnosis	Fault persists	Move on to Step 13
13	CYLINDER COMPRESSION CHECK	All OK	Problems encountered	Operation
	Carry out the cylinder compression check Op. 0520G15 COMPRESSION TEST - CHECK WITH EXAMINER WITH SPARK PLUGS/INJECTORS REMOVED	Move on to Step 15	Cylinder compression insufficient	Move on to Step 14
14	CHECK ON CAUSE OF INSUFFICIENT COMPRESSION	All OK	Problems encountered	Operation
	Carry out Op. 1016C10 SINGLE CYLINDER HEAD - R.R. AND REPLACE GASKET to check the seal of the valves. Check the condition of the cylinders/piston rings	Move on to Step 15	Valve seal insufficient	Overhaul the head Op. 1016E10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL
		Move on to Step 15	Cylinders/piston rings worn	Restore the seal
15	CORRECT OPERATION CHECK	All OK	Problems encountered	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Replace the engine management control unit Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - R.R

1.4 16v TJet

The customer complains that: The engine does not start, the starter motor is working normally

0	PRELIMINARY CHECKS	All OK	Problems encountered	Operation
		Test results
	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
		Move on to Step 3	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 aerial Check that it is correctly connected to the Body Computer See E7010 CODE	Move on to Step 4	Aerial defective	Replace code aerial
		Move on to Step 4	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 UPTAKE 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 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 operation Check for any defects in the high voltage leads Check for an ignition control signal See Test 5510CE IGNITION CONTROL SIGNAL CHECK Check 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 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	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
		Move on to Step 10	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

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Parts & tools for this job For 2007 Fiat Bravo

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