Oil Pressure Switch: Inspection

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INSPECT ENGINE OIL PRESSURE SWITCH ASSEMBLY

Disconnect the oil pressure switch connector.
Start the engine.

Fig 1: Removing Oil Pressure Switch
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Measure the resistance according to the value(s) in the table below.
Standard Resistance

STANDARD RESISTANCE

Tester Connection	Condition	Specified Condition
1 - Body ground	Engine stopped	Below 1 Ω
1 - Body ground	Engine idling	10 kΩ or higher

If the result is not as specified, replace the oil pressure switch assembly.

Fig 2: Measuring Resistance Of Oil Pressure Switch Terminals