SFI SYSTEM(w/ Canister Pump Module) DEFINITION OF TERMS

Description of what the ECM monitors and how it detects malfunctions (monitoring purpose and its details).

A group of diagnostic trouble codes that are output by the ECM based on the same malfunction detection logic.

Preconditions that allow the ECM to detect malfunctions.

With all preconditions satisfied, the ECM stores DTCs when monitored value(s) exceeds malfunction threshold(s).

Order of monitor priority, applied if multiple sensors and components are involved in a single malfunction detection process.

Each sensor and component is monitored in turn, when previous detection operation has completed.

The sensors and components used by the ECM to detect each malfunction.

The number of times the ECM checks for each malfunction during each driving cycle.

"Once per driving cycle" means ECM only performs checks for that malfunction once during a single driving cycle.

"Continuous" means the ECM performs checks for that malfunction whenever enabling conditions are met.

Minimum time for which the ECM must detect a continuous deviation in monitored value(s) in order to store a DTC. Timing begins when Typical Enabling Conditions met.

The value beyond which the ECM determines malfunctions exist and stores DTCs.

Timing of MIL illumination after a malfunction is detected.

"Immediate" means the ECM illuminates the MIL as soon as a malfunction is detected.

"2 driving cycles" means the ECM illuminates the MIL if the same malfunction is detected a second time during the next sequential driving cycle.