Volt channels can be also be used to read the temperature from a Negative Temperature Co-efficient (NTC) temperature sensor. An external 1K pull-up resistor must be connected the ECUs voltage input pin and 5V.

The exception to this when wiring a temperature sensor in a piggyback situation. The OEM engine management system's internal pull-up resistor will be utilized, in this case the sensor would be wired as you would for a standard temperature input.