iCarsoft HD I, Руководство пользователя

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Heavy Duty Diagnostic Tool HD I User’s Manual
1. Introduction
The HD I is specially developed by iCarsoft for heavy duty vehicles, which
supports all 10 modes of OBDII test (EVAP, O2 Sensor, I/M Readiness, MIL
Status, VIN Info, and On-board monitors testing etc.) for a complete diagnosis
and enables users to read DTCs, clear DTCs and view the datastream with a
live color graphing. It covers a wide range of vehicles since it offers multiple
data bus protocols, such as J1587 and J1939. It can be connected to PC
through the USB cable for upgrade to keep updated with the latest software
version.
Notice: HD I may automatically reset while being disturbed by strong static
electricity. THIS IS A NORMAL REACTION.
2. General Information
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 commanded ‘on’ or ‘off’;
2) Which, if any, Diagnostic Trouble Codes (DTCs) are stored;
3) Readiness Monitor status.