GLOSSARY
GLOSSARY OF TERMS AND ABBREVIATIONS
Manufacturer Specific Code – A DTC that applies only to OBD
2 compliant vehicles made by a specific manufacturer.
MIL – Malfunction Indicator Lamp (also referred to as "Check
Engine" light
OBD 1 – On-Board Diagnostics Version 1 (also referred to as
"OBD I")
OBD 2 – 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.
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
98
OBD 2
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