Technician A says the heated oxygen sensor monitor performs two distinct tests; one test verifies the performance of the pre- and post-oxygen sensor heater element and circuit. Technician B says the heated oxygen sensor monitor performs two distinct tests; one test monitors the pre- and post-oxygen sensor signal switch rate and signal circuit. Who is correct?
A) A only
B) B only
C) both A and B
D) neither A nor B

Question

Quizplus · Accepted Answer

Both Technician A and Technician B are correct. The heated oxygen sensor monitor indeed performs two distinct tests: one for verifying the performance of the oxygen sensor heater element and circuit (as mentioned by Technician A), and another for monitoring the oxygen sensor signal switch rate and signal circuit (as mentioned by Technician B). These tests ensure the oxygen sensors are heating properly and responding correctly to changes in the exhaust gas composition.

Technician a Says the Heated Oxygen Sensor Monitor Performs Two