User Manual
Table Of Contents
- One-Year Limited Warranty
- Safety Information
- 1 Using This Manual
- 2 Introduction
- 3 Getting Started
- 4 OBDII/EOBD Operations
- 5. DTC Lookup
- 6 Review Data
- 7 System Setup
- 8 Tool Information
- 9 NT Wonder Introduction
NT301 OBDII/EOBD Code Reader User’s Guide_English Version_V1.00
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2 Introduction
NT301 is developed by the most distinguished mind of the industry. It is specially designed to support
all 10 OBDII service modes, including live data, O2 sensor test and more, on OBDII/EOBD compliant
cars, SUVs, light-duty truck and mini-vans sold worldwide since 1996.
2.1 Code Reader Descriptions
This section illustrates external features, ports and connectors of the code reader.
Figure 2-1 Front View
A. OBD II Cable - provides communication for vehicle DLC.
B. LCD Display - shows menus, test results and operation tips.
C. Green LED Display - indicates the engine system is working normally (all monitors on the
vehicles are active and performing their diagnostic testing), and no DTCs are found.
D. Yellow LED Display - shows the tool finds a possible problem. Pending DTCs exist or/and
some of the vehicle’s emission monitors have not run their diagnostic testing.
E. Red LED Display - indicates there are some problems in one or more of the vehicle’s systems.
In this case, the MIL lamp on the instrument panel is on.
F. UP Key - quick access to the Read Codes function before going to diagnostic menu and moves
selection up. When looking up DTC, it is used to change value of selected character.
G. DOWN Key - Quick access to the Clear Codes function before going to diagnostic menu and
moves selection down. When looking up DTC, it is used to change value of selected character.
H. LEFT SCROLL KEY - goes to previous character when looking up DTCs. Scrolls back and
forth through codes found and through different screens of data. Also it is used to make
selection of PIDs when viewing custom PID list, and to view PID graphs.
I. RIGHT SCROLL KEY - goes to next character when looking up DTCs. Scrolls back and forth
through codes found and through different screens of data. Also it is used to cancel all
selections of PIDs when viewing custom PID list.
J. One Click I/M Readiness Key - quick checks state emissions readiness and drive cycle
verification.