A drive cycle is designed to reset all the OBD-II monitors. Before starting the drive cycle the engine should be ________.
A) cold (ECT = IAT)
B) operated at idle for two minutes
C) fully warmed up (cooling fans cycles on and off two times)
D) have a full fuel tank

Question

Quizplus · Accepted Answer

A drive cycle typically begins with a cold engine (ECT = IAT), which allows the vehicle's onboard diagnostics (OBD-II) system to properly run through all of its checks and balances from a consistent starting point.

A Drive Cycle Is Designed to Reset All the OBD-II