Author Question: Which wire on a TP sensor should be back probed to check for a voltage signal to the PCM? A) ... (Read 238 times)

deesands · **on:** Jun 22, 2018

Which wire on a TP sensor should be back probed to check for a voltage signal to the PCM?

A) Meter should be connected between 5-volt reference and ground
B) Signal wire
C) Ground wire
D) 5-volt reference (Vref)

Question 2

Technician A says that the ECT and IAT sensors can be tested visually, as well as by using a digital multimeter or a scan tool. Technician B says that the ECT sensor is a high-authority sensor at engine startup and is used for open-loop control, as well as idle speed. Which technician is correct?

A) Technician A only B) Technician B only
C) Both technicians D) Neither technician