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Toyota Workshop Service and Repair Manuals

Sensors and Switches - HVAC > < Oil Pressure Switch <--> [Oil Pressure Sender]|Specifications|Page 437
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Oil Pressure Switch: Testing and Inspection

INSPECT SWITCH OPERATION

1. Check that there is continuity between terminal and ground with the engine stopped.
2. Check that there is no continuity between terminal and ground with the engine running.

HINT:  Oil pressure should be over 20.49 kPa (0.35 kgf/Sq.cm, 2.84 psi).

If the warning light does not light up. test the bulb.

Sensors and Switches - HVAC > < Oil Pressure Switch <--> [Oil Pressure Sender]|Specifications|Page 437