Examination
1. Disconnect connector (in fig. left - 4-cylinder engine, right - 6-cylinder) and check for 12V on the red/blue wire. If there is no voltage, then check the circuit between the sensor and the fusible link.
2. With vehicle raised, check for 11V pulsing voltage from sensor when wheel is rotated (hold the second wheel). To do this, attach the connector and connect the positive voltmeter probe on the back of the connector to the blue wire, and the negative to the pink wire. If there is no voltage, replace the sensor.
Replacement
Disconnect the connector, unscrew the screw and remove the sensor.