22 · Diagnostics

Lateral acceleration sensor ay error

Make: Fiat
Model: Stilo Factory Service Manual
Year: 2001–2007
Section: Examiner › Lateral acceleration sensor ay error

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Fault diagnosisLateral acceleration sensor ay error

LATERAL ACCELERATION SENSOR AY ERROR

The diagnostic equipment signals the following error: C1355 Lateral acceleration sensor (AY)

This error is signalled if the sensor voltage is < 0.3 V or > 4.7 V or if the value sent by the sensor is not plausible. This means that there is an open circuit or short circuit (positive or earth) for the sensor or the wiring, that the sensor is mechanically damaged or that the reading circuit is damaged.

1	OUTPUT VOLTAGE CHECK	All OK	Problems met	Operation
		Results of the tests
	Check that the output voltage for the slewing sensor (lateral acceleration signal) signal is between 0.3 and 4.7 V See E7023 ESP. The lateral acceleration sensor is incorporated in the slewing sensor.	Continue to Step 3	Voltage out of range	Continue to Step 2
2	ELECTRICAL CONNECTIONS CHECK	All OK	Problems met	Operation
	Check the continuity (no open circuit, short circuit at Vbat and at Gnd) in the slewing sensor supply wiring. Check that the sensor is correctly fastened to the tunnel	Continue to Step 3	Wiring faulty	Renew the wiring Continue to Step 4
		Continue to Step 3	Sensor fastening faulty	Restore the correct fastening for the slewing sensor Continue to Step 4
3	SENSOR COMPATIBILITY CHECK	All OK	Problems met	Operation
	Check that the design number for the slewing sensor is compatible with the part number for the Model-Version-Series in question	Continue to Step 4	The design number is not compatible	Replace the slewing sensor with one compatible with the Model-Version-Series Op. 3350E30
4	CHECK ON CORRECT OPERATION	All OK	Problems met	Operation
	Delete the errors using the diagnostic equipment. Carry out road to make the control unit check whether there are still errors present. Return to the workshop and check that the fault is no longer present using the diagnostic equipment	End of diagnosis	The fault persists and Step 2 has not been carried out yet	Continue to Step 2
		End of diagnosis	The fault persists and Step 2 has already been carried out	Replace the slewing sensor Op. 3350E30

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