T100 SR5 Extra Cab Pickup 4WD V6-3.4L (5VZ-FE) (1998)
Oil Pressure Sender: Testing and Inspection
INSPECT OIL PRESSURE SENDER GAUGE
a. Disconnect the connector from the sender gauge.
b. Check that there is continuity between terminal and ground with the engine stopped.
c. Check that there is no continuity between terminal and ground with the engine running.
HINT: Oil pressure should be over 49 kPa (0.5 kgf/Sq. cm, 7.1 psi).
If operation is not as specified, replace the sender gauge.
INSPECT OIL PRESSURE SENDER GAUGE OPERATION
a. Disconnect the connector from the sender gauge.
b. Apply battery positive voltage to the sender gauge terminal through a test LED.
c. Check that the bulb does not light when the engine is stopped.
d. Check that the LED flashes when the engine is running. The number of flashes should vary with the engine speed.
If operation is not as specified, replace the sender gauge.