Contents

			Test results
1	COMPONENT CONCERNED	ELECTRICAL CONNECTIONS CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Connections on pressure sensor and Powertrain Control Module	Check for loose electrical connections at the intake pressure sensor and at the Powertrain Control Module.	Go to Step 2	Presence of loose electrical connections.	Restore the correct connections.
2	COMPONENT CONCERNED	WIRING CONTINUITY CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Intake pressure sensor wiring	Check for breaks in the wiring continuity	Go to Step 3	Breaks in the wiring continuity.	Restore the correct continuity for the wiring.
3	COMPONENT CONCERNED	WIRING INSULATION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Intake pressure sensor wiring	Check the condition of the wiring insulation	Go to Step 4	Wiring insulation faulty.	Restore correct wiring insulation.
4	COMPONENT CONCERNED	EARTH CONNECTION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Intake pressure sensor wiring	Check the condition of the earth connections.	Go to Step 5	Breaks in the wiring continuity.	Restore the correct earth connections.
5	COMPONENT CONCERNED	CHECK FOR SEEPAGE IN INTAKE MANIFOLD	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Intake manifold	Check for any seepage in the intake manifold	Go to Step 6	Seepage inside the intake manifold.	Restore correct operation
6	COMPONENT CONCERNED	PRESSURE READING CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Pressure sensor	Check the pressure from the manifold pressure sensor by connecting the diagnostic equipment	End of diagnosis	Pressure value incorrect	Go to Step 7
7	COMPONENT CONCERNED	INTAKE PRESSURE SENSOR OPERATION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Pressure sensor	Check that the intake pressure sensor is working correctly	End of diagnosis	Intake pressure sensor not working properly.	Replace the intake pressure sensor Op. 1056B54 INTAKE AIR PRESSURE/TEMPERATURE SENSOR - R.R.