Cruise control not working in any circumstances

Make: Fiat
Model: Bravo Factory Service Manual
Year: 2007–2014
Section: Engine › Cruise control not working in any circumstances

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Fault diagnosisCruise control not working in any circumstances

CRUISE CONTROL NOT WORKING IN ANY CIRCUMSTANCES

1.9 JTD 8v, 1.9 JTD 16v

The Cruise Control system controls do not work under any circumstances

1	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket. Check for the presence of faults in the engine management control unit	Move on to Step 2	Error detected in the control unit	Continue following the instructions for the diagnostic equipment
		Move on to Step 2	No communication with the control unit	Restore the connection between the engine management control unit and the diagnostic connector See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT
2	CRUISE CONTROL SELECTOR CHECK	All OK	Problems encountered	Operation
	Check that the Cruise Control contacts are working properly by connecting the Examiner, carrying out See Test 5580AA CRUISE CONTROL ON/OFF CONTROL CHECK	Move on to Step 3	No continuity	Replace the steering wheel interface lever with built-in Cruise Control Op. 5580A10 CRUISE CONTROL LEVER ASSEMBLY - R+R
3	CONNECTIONS CHECK	All OK	Problems encountered	Operation
	Check the electrical continuity of the wiring between the cruise control system control and the engine control unit See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT	Move on to Step 4	No continuity	Repair the connections: See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT
4	CORRECT OPERATION CHECK	All OK	Problems encountered	Operation
	Check that the fault is no longer present, by carrying out See Test 5580AE CRUISE CONTROL OPERATION ROAD TEST CHECK	End of diagnosis	The fault persists: engine control unit defective	Replace the engine management control unit Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - R.R

1.4 16v TJet

The Cruise Control system controls do not work under any circumstances

1	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket. Check for the presence of faults in the engine management control unit	Move on to Step 2	Error detected in the control unit	Continue following the instructions for the diagnostic equipment
		Move on to Step 2	No communication with the control unit	Restore the connection between the engine management control unit and the diagnostic connector See E5060 CRUISE CONTROL
2	CRUISE CONTROL SELECTOR CHECK	All OK	Problems encountered	Operation
	Check that the Cruise Control contacts are working properly by connecting the Examiner, carrying out See Test 5580AA CRUISE CONTROL ON/OFF CONTROL CHECK	Move on to Step 3	Steering wheel interface lever defective	Replace the steering wheel interface lever with built-in Cruise Control Op. 5580A10 CRUISE CONTROL LEVER ASSEMBLY - R+R
		Move on to Step 3	No continuity	Restore the continuity/insulation
3	CONNECTIONS CHECK	All OK	Problems encountered	Operation
	Check the electrical continuity of the wiring between the cruise control system control and the engine control unit See E5060 CRUISE CONTROL	Move on to Step 4	No continuity	Repair the connections: See E5060 CRUISE CONTROL
4	CORRECT OPERATION CHECK	All OK	Problems encountered	Operation
	Check that the fault is no longer present, by carrying out See Test 5580AE CRUISE CONTROL OPERATION ROAD TEST CHECK	End of diagnosis	The fault persists: engine 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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