Ordinary engine noise, known as background noise, can be used to allow the PCM to detect some circuit faults. The sensor used to detect the engine noise is the:
A)TPS
B)KS
C)MAP sensor
D)ECT sensor

Question

Quizplus · Accepted Answer

The Knock Sensor (KS) is used to detect engine noise, specifically knocking or pinging, which can be used by the Powertrain Control Module (PCM) to identify certain circuit faults.

Ordinary Engine Noise, Known as Background Noise, Can Be Used