Contents

			Test results
1	COMPONENT CONCERNED	OIL PRESSURE SWITCH CONNECTION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Connections on oil pressure switch and Powertrain Control Module	Check for the presence of loose connections on the oil pressure switch and the Powertrain Control Module	Go to Step 2	Presence of loose connections	Restore the correct connections
2	COMPONENT CONCERNED	WIRING CHECK BETWEEN OIL PRESSURE SWITCH AND POWERTRAIN CONTROL MODULE	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Wiring between oil pressure switch and Powertrain Control Module	Check the continuity of the wiring between the oil pressure switch and pin 32 of the Powertrain Control Module	Go to Step 3	Faults in the continuity of the wiring	Restore the correct wiring
3	COMPONENT CONCERNED	OIL PRESSURE SWITCH WIRING CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Wiring between oil pressure switch and Powertrain Control Module	Check for the presence of short circuits to battery on the wiring between the oil pressure switch and pin 32 of the Powertrain Control Module	Go to Step 4	Presence of short circuits to battery on the wiring	Restore the correct wiring insulation to battery
4	COMPONENT CONCERNED	OIL PRESSURE SWITCH OPERATION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Oil pressure switch	Check that the oil pressure switch is working properly	End of diagnosis	The oil pressure switch is not working properly	Replace the oil pressure switch Op. 1084A42 ENGINE OIL PRESSURE WARNING LIGHT SWITCH - R.R.