Previa Van RWD L4-148.8 2438cc 2.4L DOHC SC (2TZ-FZE) (1996)
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Oil Level Sensor: Testing and Inspection
Inspect Engine Oil Level Sensor
a. Check that there is continuity between terminals 1 and 2 with the switch each position.
b. Heat the switch to above 60°C (140°F) in an oil bath.
c. Check that there is continuity between terminals 1 and 2 with the switch ON (float up).
d. Check that there is no continuity between terminals 1 and 2 with the switch OFF (float down).
If operation is not as specified, replace the switch.