Technician A says the comprehensive component monitor keeps track of outputs that could affect vehicle emissions. Technician B says the comprehensive component monitor performs rationality testing of the MAF sensor. Who is correct?
A) A only
B) B only
C) both A and B
D) neither a nor B

Question

Quizplus · Accepted Answer

The comprehensive component monitor is part of the OBD-II system designed to monitor emissions-related components and systems that are not continuously monitored by other specific monitors. It does indeed keep track of outputs that could affect vehicle emissions, as stated by Technician A. Additionally, it performs rationality testing on various sensors and components, including the Mass Air Flow (MAF) sensor, to ensure they are operating within expected parameters, as mentioned by Technician B. Therefore, both technicians are correct.

Technician a Says the Comprehensive Component Monitor Keeps Track of Outputs