Equus 3100 - CanOBD2 Diagnostic Tool Manuel d'utilisateur télécharger pdf (Page 62)

Glossary

GLOSSARY OF TERMS AND ABBREVIATIONS

60 OBD2

Manufacturer Specific Code – A DTC that applies only to OBD2

compliant vehicles made by a specific manufacturer.

MIL – Malfunction Indicator Lamp (also referred to as “Check Engine”

light

OBD1 – On-Board Diagnostics Version 1 (also referred to as “OBD I”)

OBD2 – On-Board Diagnostics Version 2 (also referred to as “OBD II”)

On-Board Computer – The central processing unit in the vehicle’s

computer control system.

PCM – Powertrain Control Module

Pending Code – A code recorded on the “first trip” for a “two-trip” code.

If the fault that caused the code to be set is not detected on the second

trip, the code is automatically erased.

STFT – Short Term Fuel Trim, is a program in the vehicle’s computer

designed to add or subtract fuel from the vehicle to compensate for

operating conditions that vary from the ideal A/F ratio. The vehicle uses

this program to make minor fuel adjustments (fine tune) on a short-term

basis.

Trip Drive Cycle – Vehicle operation that provides the necessary

driving condition to enable a vehicle Monitor to run and complete its

diagnostic testing.

VECI – Vehicle Emission Control Information Decal

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Equus 3100 - CanOBD2 Diagnostic Tool Manuel d'utilisateur Page 62