Contents

			Test results
1	COMPONENT CONCERNED	ELECTRICAL CONNECTIONS CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Connections on engine rpm sensor and Powertrain Control Module	Check for loose electrical connections at the 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
	Engine rpm sensor wiring	Check for continuity breaks in the wiring between the engine rpm sensor and pin 1 of the Powertrain Control Module, caused by oxidised or corroded terminals	Go to Step 3	Breaks in the wiring continuity.	Restore the correct continuity for the wiring.
3	COMPONENT CONCERNED	WIRING CONTINUITY CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Engine rpm sensor wiring	Check for continuity breaks in the wiring between the engine rpm sensor and pin 13 of the Powertrain Control Module, caused by oxidised or corroded terminals	Go to Step 4	Breaks in the wiring continuity.	Restore the correct continuity for the wiring.
4	COMPONENT CONCERNED	CHECK THE AIR GAP BETWEEN RPM SENSOR AND TOOTHED WHEEL	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Engine rpm sensor	Check the correct air gap between the rpm sensor and the toothed wheel	Go to Step 5	Incorrect air gap	Restore the correct air gap
5	COMPONENT CONCERNED	RPM SENSOR OPERATION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Engine rpm sensor	Check that the rpm sensor is working properly See Test 5510CD RPM SENSOR COIL OPERATION CHECK See Test 5510CF RPM SIGNAL CHECK	End of diagnosis	Rpm sensor not working properly.	Replace the rpm sensor Op. 5510C26 ENGINE RPM SENSOR - R+R