iKiKin AT300 OBD2 Car Code Reader User Manual

1. Introduction

The iKiKin AT300 Car Code Reader is a professional diagnostic tool designed to help vehicle owners and technicians quickly identify and resolve issues related to the On-Board Diagnostics II (OBD2) system. This device provides comprehensive diagnostic functions, including reading and clearing fault codes, viewing live data, performing I/M readiness tests, and conducting battery-related tests such as cranking and charging.

It is compatible with most OBDII protocol cars manufactured in the US since 1996, Europe since 2000, and Asia since 2008. The AT300 is a plug-and-play device, requiring no external power source as it draws power directly from the vehicle's OBDII Data Link Connector.

Figure 1.1: The iKiKin AT300 assists in solving common vehicle diagnostic problems.

2. Safety Information

• Always perform automotive testing in a well-ventilated area.
• Wear eye protection that meets ANSI standards.
• Keep clothing, hair, hands, tools, test equipment, etc., away from all moving or hot engine parts.
• Do not connect or disconnect test equipment while the ignition is on or the engine is running.
• Keep the scan tool dry, clean, free from oil, water, or grease. Use a mild detergent on a clean cloth to clean the exterior.

3. What's in the Box

• 1 x iKiKin AT300 OBD2 Scanner with 16PIN OBD2 Standard Plug
• 1 x User Manual

4. Product Overview

The AT300 OBD2 Scanner is a compact and user-friendly diagnostic tool featuring a high-quality TFT color screen and intuitive button layout. It is designed for quick and accurate vehicle diagnostics.

Figure 4.1: Front view of the AT300 OBD2 Scanner and its key features.

4.1 Key Features

• Full OBD2 Diagnostic Functions: Reads and clears Diagnostic Trouble Codes (DTCs), turns off the Check Engine Light (MIL).
• DTC Look-Up Built-in: Access a library of over 35,000 DTCs to understand code meanings.
• Voltmeter: Measures battery voltage and State of Charge (SOC).
• Cranking Test: Evaluates the vehicle's starting system performance.
• Charging Test: Assesses the vehicle's charging system, including ripple test.
• I/M Readiness: Checks the status of emission-related monitors.
• Data Stream: Displays real-time sensor data in text and graph formats.
• Multi-language Support: Supports 10 languages including English, German, French, Spanish, Portuguese, Dutch, Italian, Russian, Polish, and Finnish.

Figure 4.2: The AT300 offers a comprehensive suite of diagnostic functions.

4.2 Device Layout

The AT300 features a clear TFT color display, intuitive navigation buttons (ESC, OK, Up, Down), and a robust 16-pin OBD2 standard plug for direct connection to your vehicle.

Figure 4.3: Physical dimensions of the AT300 device.

5. Setup

The AT300 is designed for simple plug-and-play operation. No batteries or external chargers are required.

5.1 Connecting the Device

1. Locate the vehicle's 16-pin Data Link Connector (DLC). This is usually found under the dashboard on the driver's side.
2. Ensure the vehicle's ignition is off.
3. Firmly plug the AT300's OBD2 connector into the vehicle's DLC.
4. Turn the vehicle's ignition to the 'ON' position (engine can be off or running, depending on the test). The scanner will power on automatically.

6. Operating Instructions

6.1 Basic Navigation

Use the UP and DOWN arrow buttons to scroll through menu options. Press the OK button to confirm a selection or enter a submenu. Press the ESC button to return to the previous screen or exit a function.

6.2 Reading and Clearing Fault Codes

This function allows you to read current, pending, and permanent Diagnostic Trouble Codes (DTCs) from the vehicle's Engine Control Unit (ECU) and clear them, which will turn off the Check Engine Light (MIL).

1. From the main menu, select "Diagnose" and press OK.
2. Select "Read Codes" to view stored DTCs.
3. To clear codes, select "Erase Codes" and press OK. Confirm the action when prompted.

Figure 6.1: Main functions accessible on the AT300 display.

6.3 I/M Readiness

The I/M Readiness function indicates whether the various emission-related systems on the vehicle are operating correctly and are ready for inspection and maintenance testing. The AT300 features visual indicators (Green, Yellow, Red LEDs) to quickly show readiness status.

• Green LED: All monitors are running and performing their diagnostic tests, indicating good condition.
• Yellow LED: Some monitors have not yet completed their diagnostic tests, requiring attention.
• Red LED: One or more monitors are not running or have not completed their diagnostic tests, indicating an issue that needs action.

Figure 6.2: Visual indicators for I/M Readiness status.

6.4 Data Stream

View real-time operational data from the vehicle's sensors and components. This can be displayed in numerical or graphical format for easier analysis.

1. From the "Diagnose" menu, select "Data Stream" and press OK.
2. Scroll through the list of available data parameters.
3. Select a parameter to view its real-time value.

6.5 DTC Lookup

The built-in DTC lookup library allows you to quickly find the definition of a Diagnostic Trouble Code without needing to consult external resources.

1. From the main menu, select "DTC Lookup" and press OK.
2. Enter the DTC using the arrow buttons and press OK to view its definition.

6.6 Voltmeter Function

This function provides a quick check of the vehicle's battery voltage and its State of Charge (SOC).

1. From the main menu, select "Voltmeter" and press OK.
2. The screen will display the current battery voltage and SOC percentage.

6.7 Charging Test

The charging test evaluates the performance of the vehicle's charging system (alternator, voltage regulator, and wiring) under various load conditions.

1. From the main menu, select "Charging" and press OK.
2. Follow the on-screen prompts to perform the test. The scanner will display results such as unloaded voltage, loaded voltage, and ripple voltage.

Figure 6.3: Accurate testing for battery and I/M readiness.

6.8 Cranking Test

This test assesses the vehicle's starting system, including the battery, starter motor, and starting circuit.

1. From the main menu, select "Cranking" and press OK.
2. Follow the on-screen instructions, which will typically involve turning off the engine and then starting it.
3. The scanner will display the cranking voltage and time, indicating the health of the starting system.

6.9 System Setup

Adjust various settings of the scanner, such as language, unit of measure, and display brightness.

1. From the main menu, select "Tool Setup" or "System Setup" and press OK.
2. Navigate to the desired setting (e.g., "Language") and make your selection.

7. Maintenance

• Store the scanner in a clean, dry environment when not in use.
• Avoid exposing the device to extreme temperatures, humidity, or direct sunlight.
• Clean the device with a soft, damp cloth. Do not use abrasive cleaners or solvents.
• Regularly check the OBD2 cable and connector for any signs of damage.

8. Troubleshooting

8.1 Device Does Not Power On

• Ensure the OBD2 connector is firmly plugged into the vehicle's DLC.
• Verify the vehicle's ignition is in the 'ON' position.
• Check the vehicle's fuse for the OBD2 port (consult your vehicle's manual).
• Try connecting the scanner to another vehicle to confirm if the issue is with the scanner or the vehicle's OBD2 port.

8.2 Link Error / Communication Error

• Verify that the vehicle supports the OBDII protocol (most vehicles from 1996 onwards in the US, 2000 in Europe, 2008 in Asia).
• Ensure the ignition is on and the engine is running for some tests.
• Check for any loose connections at the OBD2 port.
• Turn off the ignition, wait 10 seconds, and then turn it back on before attempting to connect again.

8.3 Codes Not Clearing

• Ensure the ignition is in the 'ON' position with the engine off when attempting to clear codes.
• If the underlying fault that triggered the code is still present, the code will reappear immediately after clearing. Address the root cause of the fault.

9. Specifications

10. Warranty and Support

For warranty information and technical support, please refer to the contact details provided with your purchase or visit the official iKiKin website. Keep your purchase receipt as proof of purchase for warranty claims.