ScanTool Launch CReader - Manual (Page 9)

LAUNCH CreaderV User’s Manual
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1. INTRODUCTION
CreaderV is newly developed by LAUNCH, specially designed for car
owners or DIYs to diagnose any vehicle that is compliant to OBDII/EOBD.
It not only can read/clear DTCs, but also can read live data in 2 modes,
and perform many special tests. Tri-languages make it operation easily
for a technician. The feature of upgrading online ensures it can test new
model cars and/or functions in the future.
NOTICE: CREADERV MAY AUTOMATICALLY RESET
WHILE BEING DISTURBED BY STRONG STATIC
ELECTRICITY. IT IS NORMAL.
2. General Information-About OBDII/EOBD
2.1 On-Board Diagnostics (OBD) II
The first generation of On-Board Diagnostics (called OBD I) was
developed by the California Air Resources Board (ARB) and
implemented in 1988 to monitor some of the emission control
components on vehicles. As technology evolved and the desire to
improve the On-Board Diagnostic system increased, a new generation of
On-Board Diagnostic system was developed. This second generation of
On-Board Diagnostic regulations is called "OBD II".
The OBD II system is designed to monitor emission control systems and
key engine components by performing either continuous or periodic tests
of specific components and vehicle conditions. When a problem is
detected, the OBD II system turns on a warning lamp (MIL) on the
vehicle instrument panel to alert the driver typically by the phrase of
“Check Engine” or “Service Engine Soon”. The system will also store
important information about the detected malfunction so that a technician
can accurately find and fix the problem. Here below follow three pieces of
such valuable information:
1) Whether the Malfunction Indicator Light (MIL) is