A high voltage on the three-wire potentiometer sensor's signal circuit would most likely be caused by which of the following?
A) An open in the supply circuit.
B) An open in the signal circuit.
C) A short to ground in the supply circuit.
D) A short to ground in the signal circuit.

Question

Quizplus · Accepted Answer

An open in the signal circuit can cause a high voltage reading because the circuit is not complete, leading to a lack of current flow and a potential difference across the open circuit.

A High Voltage on the Three-Wire Potentiometer Sensor's Signal Circuit