Launch CRP 129 Premium (LA07005) [10/50] Introduction

LAUNCH Creader Professional CRP12X Series User's Manual

1. Introduction

The Creader Professional CRP12X Series are specially developed by LAUNCH,

which supports all 10 modes of OBD II test for a complete diagnosis. Featuring

the 3.5” TFT color display, it enables users to read/clear DTCs, record, save and

playback data in live graphic display. The CRP12X Series are also very easy to

use. With built-in help menus and code denitions, diagnosing and repairing that

dreaded Check Engine Light is now easier than ever!

Moreover, CRP12X Series also feature the following bi-directional “special tests”:

EVAP, O2 Sensor, I/M Readiness, MIL Status, VIN Info, and On-board monitors

testing.

It can be connected to PC through the USB cable for upgrade to keep updated

with the latest software version.

Notice: CRP12X Series 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 specic

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 nd and x 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.