Technician A says the comprehensive component monitor will use three-trip logic when determining when to set a DTC and illuminate the MIL. Technician B says an OBD II system requires a drive cycle to occur that meets specific enable criteria before the monitors will run to completion. Who is correct?
A) A only
B) B only
C) both A and B
D) neither A nor B

Question

Quizplus · Accepted Answer

Technician B is correct because an OBD II system requires a drive cycle that meets specific enable criteria for the monitors to run to completion. Technician A is incorrect because the comprehensive component monitor typically uses one-trip or two-trip logic, not three-trip logic, to set a DTC and illuminate the MIL.

Technician a Says the Comprehensive Component Monitor Will Use Three-Trip