22 · Diagnostics

Electric steering not working / city

Make: Fiat
Model: Bravo Factory Service Manual
Year: 2007–2014
Section: Steering – vehicle behaviour › Electric steering not working / city

‹ Prev Steering heavy with poor return Next › Side lights/no. plate lights not working

Fault diagnosisElectric steering not working / city

ELECTRIC STEERING NOT WORKING / CITY

When the CITY button is pressed, the function is not activated and there is no additional electric power steering assistance

1	FUNCTIONAL CHECK	All OK	Problems encountered	Operation
		Test results
	When the CITY button is pressed, check that: - The corresponding symbol lights up in the NQS	Move on to Step 2	The symbol does not light up in the NQS	Move on to Step 4
2	CITY FUNCTION CHECK	All OK	Problems encountered	Operation
	Carry out a road test to check that there is a variation in the assistance when the CITY button in the control panel is pressed	End of diagnosis	The symbol in the panel is working although the assistance does not alter	Continue as indicated See table H025 NO ELECTRIC STEERING POWER ASSISTANCE WITH FAILURE WARNING LIGHT ON
3	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Connect the diagnostic equipment (Examiner or other instruments) to the electric steering node diagnostic socket and check: - for the presence of errors at the electric steering node - for the presence of any errors at the NBC - for the presence of any errors at the NCM	Move on to Step 5	1. Errors present at the electric steering node 2. CAN line from NGE to NBC faulty 3. CAN line from NCM to NGE faulty	1. Continue as described by the diagnostic equipment 2. Restore CAN line electrical connections from NGE to NBC 3. Restore CAN line electrical connections from NCM to NGE
4	CITY BUTTON CHECK	All OK	Problems encountered	Operation
	Check that the City button is working properly See Test 7040AA CHECK CITY BUTTON Check the continuity of the wiring between the City button and the Body Computer Node See E7045 ELECTRIC STEERING	Move on to Step 5	1. City button defective 2. Wiring broken 3. Body Computer defective	1. Replace the City button 2. Restore the wiring continuity 3. Replace Body Computer Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.
5	CORRECT OPERATION CHECK	All OK	Problems encountered	Operation
	Check that the fault is no longer present	End of diagnosis	Fault persists	Replace the steering column assembly; if the fault is still present after the replacement, move on to Step 6
6	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Cancel the errors, disconnect the diagnostic station and place the key in the stop position for about 10 secs. Start up the engine and turn the steering wheel to the end of travel position in both directions. Reconnect the Examiner diagnostic equipment and check that there are no errors at the electric steering control unit	End of diagnosis	Fault persists	Replace the electric steering control unit

‹ Prev Steering heavy with poor return Next › Side lights/no. plate lights not working

Parts & tools for this job For 2007 Fiat Bravo

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.