Contents

			Test results
1	COMPONENT CONCERNED	ELECTRICAL CONNECTIONS CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Connections on knock sensor and Powertrain Control Module	Check for loose electrical connections at knock 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 BETWEEN KNOCK SENSOR AND POWERTRAIN CONTROL MODULE	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Knock sensor wiring	Check for breaks in the continuity of the wiring between the knock sensor and pin 37, due to oxidised or corroded terminals	Go to Step 3	Breaks in the wiring continuity.	Restore the correct continuity for the wiring.
3	COMPONENT CONCERNED	WIRING CHECK BETWEEN KNOCK SENSOR AND POWERTRAIN CONTROL MODULE	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Knock sensor wiring	Check for short circuits to battery on the wiring between the knock sensor and pin 37 of the Powertrain Control Module, caused by oxidised or corroded terminals.	Go to Step 4	Presence of short circuits to battery on the wiring.	Restore the correct wiring insulation to battery
4	COMPONENT CONCERNED	SENSOR TIGHTENING CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Knock sensor	Check tightening and position of knock sensor.	Go to Step 5	Sensor not correctly positioned/tightened.	Restore correct sensor tightening/positioning.
5	COMPONENT CONCERNED	KNOCK SENSOR OPERATION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Knock sensor	Check that the knock sensor is working properly	End of diagnosis	Knock sensor not working properly.	Replace the knock sensor Op. 5510C42 DETONATION SENSOR (ONE) - R.R.