Technician A uses a scan tool to clear stored DTCs. Technician B says that clearing DTCs will also clear all of the noncontinuous OBD-II monitors. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B

Question

Quizplus · Accepted Answer

Clearing stored Diagnostic Trouble Codes (DTCs) with a scan tool does indeed reset the noncontinuous (or non-continuous) On-Board Diagnostics II (OBD-II) monitors, as these monitors run certain checks for vehicle issues and store their statuses based on the vehicle's operational history. Resetting the DTCs essentially resets these systems, requiring them to re-run their diagnostic checks from the beginning.

Technician a Uses a Scan Tool to Clear Stored DTCs