Technician A says the engine coolant temperature (ECT) value can be viewed on a scan tool. Technician B says a quick test can be made by unplugging the ECT and watching to see if the temperature changed on the scan tool. Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because modern vehicles allow the ECT value to be viewed on a scan tool. Technician B is also correct because unplugging the ECT sensor should cause the scan tool to show a change, indicating the sensor's disconnection.

Technician a Says the Engine Coolant Temperature (ECT) Value Can