Camshaft Position Sensor: Inspection
WARNING: This page is about a different car, the 1994 Toyota Paseo. However, it is still accessible from the selected car via links, so may be relevant.
Before removing camshaft position sensor from vehicle, disconnect camshaft position sensor connector. Using an ohmmeter, measure resistance between terminals. Cold, resistance should be 835-1400 ohms. Hot, resistance should be 1060-1645 ohms. If resistance is not as specified, replace camshaft position sensor.