Engine Controls - Sensor Operating Range Charts: Introduction
Sensor operating range information is supplied so it can be determined if a sensor is out of calibration. A sensor out of calibration may not set a trouble code; however, it may cause driveability problems.
NOTE:
All voltage tests should be performed with a digital volt-ohm meter (DVOM) with a minimum 10-megohm input impedance, unless specifically stated otherwise in testing procedures.