LAUNCH
X-431 IMMO PAD User Manual
13 Glossary of Terms & Abbreviations
ABS
– Anti-Lock Brake System
AC
– Alternative Current
ADAS
-- Advanced Driver Assistance Systems
AFS
– Adaptive Front-lighting System
CAN
– Controller Area Network
Communication Protocol
– Allows different systems and sensors in a vehicle to communicate.
There are currently five Protocols:
• CAN Bus
• J1850 VPW
• ISO 9141-2
• J1850 PWM
• ISO 14230 KWP
DC
– Direct Current
DLC
– Data Link Connector
The 16-cavity connector on the vehicle that allows communication between the computer system and the diagnostic
tool.
DPF
– Diesel Particulate Filter
DTC
– Diagnostic Trouble Code
A code stored in the computer system’s memory, which helps to identify the fault condition that is causing the MIL to
activate.
Drive Cycle
– A set of driving procedures that, when met, provide the Enabling Criteria for the I/M Monitors to run and
complete their diagnostic tests.
Freeze Frame Data
–
A digital representation of engine and/or emissions system conditions present when a fault code
was recorded.
Generic Code
–
A DTC that applies to all OBD2 compliant vehicles.
I/M
–
Instant Messaging
I/M Readiness
–
An indication of whether or not a vehicle’s emissions-related system are operating properly and are
ready for Inspection and Maintenance testing.
LCD
–
Liquid Crystal Display
LED
–
Light Emitting Diode
Manufacturer Specific Code
– A DTC that applies only to OBD II-compliant vehicles made by a specific manufacturer.
MIL
–
Malfunction Indicator Lamp
The vehicle’s “Check Engine” warning light that activates when a DTC is stored.
OBD I
– On-Board Diagnostics Version 1
63