T6CANFD USER MANUAL

The T6CANFD device builds on the foundation of traditional CAN cards with several innovations. It integrates data transmission and reception capabilities for CAN, CAN FD, and LIN protocols, featuring 2 CAN (CANFD) channels and 2 LIN channels. With gateway simulation functionality, it simplifies wiring and enables off-vehicle module diagnostics. It is compatible with 98% of new energy vehicle diagnostic software on the market and supports categorized management. Equipped with built-in message data, it allows one-click activation of components like compressors and DCDC converters, reducing repair rates. Its communication detection function helps troubleshoot wiring issues and assess communication status.

Today, T6CANFD has become the preferred product in vehicle maintenance, platform component repairs, and automotive electronics development, winning the favor of customers worldwide. For detailed product information and usage tutorials, please click the link below to learn more.

https://www.eucleia.net/T6CANFD?_l=en

 

PC TabScan EV INSTALLATION

After receiving the T6CANFD device, users need to visit the Eucleia official website to download the management tool specifically designed for new energy devices—"TabScan EV". This software integrates essential functions such as data collection, component activation, new energy upper computer management, and firmware upgrades.

During the software installation, the required drivers for the device will be automatically installed. Some system versions may display a pop-up asking whether to install the drivers, which must be confirmed; otherwise, the device cannot function properly.

TabScan EV download link: https://www.eucleia.net/driver?_l=en

 

Installation Steps

  1. TabScan EV download link: https://www.eucleia.net/driver?_l=en

 

  1. Download the TabScan EV application, then click "Learn More" to retain the application on your computer and proceed with the download.

 

  1. If the firewall blocks the app installation, click "More Info" to proceed with the installation process.

 

  1. Check the option to allow software installation, then click "Install" and wait for the installation process to complete. This will finalize the installation procedure.

 

  1. Connect the T6CANFD device, click on Settings, then click on Detection. If the device serial number is successfully read, it indicates that the device driver is installed correctly and the device is ready for use.

 

Install The Upper Computer Software And Environment Package

Function Overview

Importing New Energy Upper Computer Software & Environment Installation

The new energy upper computer refers to diagnostic software, while the diagnostic connector is the T6CANFD. Currently, it is compatible with 99% of new energy upper computer software available on the market. The TabScan EV software offers robust third-party new energy upper computer management capabilities, supporting classification by brand, manufacturer, and other key information. It also features a convenient search function, allowing users to quickly locate the required upper computer software using keywords.

The compressed package of new energy upper computer software is collected and compiled by third parties. To obtain the download link, please contact the device distributor. During the import process, the TabScan EV software provides a highly convenient one-click import function. For detailed instructions, please refer to the tutorial below.

Running the new energy upper computer software requires specific environment dependencies; otherwise, error messages may appear upon launch. The TabScan EV software also provides a one-click import function for these dependencies, requiring users to manually click "Next" to proceed with the installation. Detailed instructions can be found in the tutorial below.

 

  1. The upper computer software and environment package are developed by third parties. Please contact the seller to obtain the download link.

 

  1. Open TabScan EV and click on "Software Management." The first step is to select the location of the upper computer software package for import.

 

  1. Step 2: The default storage location is the C drive. If space is limited, you may choose an alternative path for saving.

 

  1. Step 3: Click "Import" directly. The process will be completed in approximately 5 minutes.

 

  1. Begin importing the environment package by selecting and opening the compressed file.

 

  1. The default storage location is the C drive. If space is limited, you may choose an alternative path for saving.

 

  1. Once the import is complete, click "Install" Throughout the process, you will need to manually click "Next" at each step. If prompted to restart, select "Restart Later." Due to the large number of environment packages, the full installation may take approximately 30 minutes.

 

CAN Data Transmission and Reception

Function Overview

1. Automatic CAN Baud Rate Detection

Common CAN baud rates include 100k, 125k, 250k, and 500k. Selecting an incorrect baud rate may result in failure to capture message data. To assist users in determining the actual baud rate of the CAN bus, this device features a Baud Rate Scanning function, which can automatically detect the baud rate of the CAN line. This functionality allows even beginners to quickly get started, reducing the learning curve.

Currently, the CANFD protocol does not support automatic baud rate detection. Additionally, for modules in sleep mode, scanning may not detect the baud rate. In such cases, it is recommended to use the Communication Detection function.

 

2. Dual CAN Channels

T6CANFD is equipped with two independent CAN channels, CAN1 and CAN2, which operate separately without interference. Compared to single-CAN devices that can only drive one module at a time, the dual-CAN design allows for simultaneous operation of two modules (even at different baud rates).

Additionally, one channel can be used for data collection, while the other is used for message transmission, offering greater operational flexibility. The wiring harness is clearly labeled for easy connection and user-friendly operation.

 

3. CAN Data Collection

Consider a scenario where an air conditioning panel malfunctions and is removed from a vehicle for repair. After completing the repair, it is essential to verify whether the module is functioning correctly. However, once powered on, the module may enter a sleep mode, with no illuminated indicator lights, making it difficult to determine if the repair was successful.

Traditionally, the module would need to be reinstalled in the vehicle for testing. If issues persist, repeated removal and reinstallation are required, which is especially challenging for remote repairs where the actual vehicle is unavailable. Being able to test the module before reinstallation can significantly reduce the need for rework.

A common solution is to send a wake-up command to the sleeping module, enabling comprehensive workbench testing. These wake-up commands are in the form of CAN messages, which can be collected from a vehicle and used across multiple models of the same brand. The process is straightforward—simply connect the CAN wires to the module’s CAN pin terminals to capture data. The collected data generally requires no modification and can be replayed directly to wake up the module.

Additionally, this device supports saving the collected data in multiple formats, allowing for further editing and in-depth analysis as needed.

 

4. CAN Data Playback

When activating an air conditioning panel or compressor, the process essentially involves replaying previously collected wake-up messages. This device supports loading and replaying data in various formats, including .txt, .csv, and .can files.

Additionally, the device offers broad compatibility with message formats collected by third-party equipment. However, due to the diversity and proprietary nature of third-party formats, full compatibility cannot be guaranteed. If you encounter any errors while opening a file, please feel free to contact our technical support team for assistance with format conversion.

 

CAN FD Data Transmission and Reception

1. CAN FD Data Collection

CAN FD is backward compatible with the CAN data format. This means that CAN FD mode can collect both CAN and CAN FD data, whereas CAN mode can only collect CAN data and not CAN FD.

The wiring method for CAN FD is the same as that for CAN. During operation, users simply need to set the CAN FD baud rate in the software. After that, the data collection process is identical to CAN data collection.

 

LIN Data Transmission and Reception

Feature Overview

1. Automatic LIN Baud Rate Detection

Common LIN baud rates include 2400, 9600, and 19200. Selecting the incorrect baud rate may result in failure to collect message data or capturing invalid data.

To help users determine the actual baud rate of the LIN line and collect valid LIN data, this device features a “Baud Rate Scan” function that can automatically detect the LIN baud rate.

Currently, only the LIN1 harness supports this detection feature, while LIN2 is not yet supported.

 

2. Dual LIN Channels

This device is equipped with two independent LIN channels: LIN1 and LIN2, which operate separately without interference.

Compared to single-channel LIN devices, which can only control one module at a time, the dual LIN channels allow for:

Additionally, the harness is clearly labeled, ensuring simple connections and ease of use.

 

3. LIN Data Acquisition

LIN-controlled modules are commonly found in wiper motors, reading lights, electric compressors, blower motors, and more.

For example, if an electric compressor is removed from a vehicle for repair, it must be tested to ensure proper functionality after servicing. However, LIN modules enter a sleep state when powered on, making it difficult to determine if the repair was successful.

Challenges & Traditional Testing Methods:

Optimized Solution: Pre-installation Testing

To reduce rework, the best practice is to test the module before installation by sending a wake-up signal (message frame) to the sleeping module, enabling multi-level control. These message frames can be collected from the vehicle.

Key Differences Between LIN and CAN Data Acquisition:

 

4. LIN Data Playback

When driving a LIN protocol module, the process involves replaying previously collected activation messages.

Important Considerations:

 

5. LIN Communication Detection

If an LIN protocol electric compressor fails to operate properly, the communication detection function can be used to troubleshoot the issue. The "Slave Identification" feature helps determine whether the wiring and power supply are functioning correctly.

Troubleshooting Steps:

 

Universal Gateway

Function Overview

1. Two Activation Methods

The device supports two activation methods:

These two methods have slightly different wiring and activation procedures. For daily use, it is recommended to activate the device using the power cable method, as it is more straightforward and does not require manual baud rate configuration.

 

 

2. Gateway Simulation for Off-Vehicle Module Diagnostics

Suppose a module, such as an instrument cluster, air conditioning panel, charger, or airbag control unit, has been removed from a vehicle, and you need to retrieve its version information or data stream. Traditionally, this requires connecting the module to a gateway from the same vehicle model, allowing the diagnostic tool to communicate with the module through the gateway. However, different vehicle models require different gateways, leading to high costs.

T6CANFD can simulate the gateway for most modules. By connecting CAN2 to the module and CAN1 to the diagnostic tool, T6CANFD functions as a universal gateway, eliminating the need to purchase multiple gateways. This enables direct diagnostics of the module, including advanced functions such as programming and coding.

 

3. External OBD Connection for Bus Diagnostics

If the vehicle’s gateway is damaged and diagnostics cannot be performed via the OBD port, it may still be necessary to check whether other modules are functioning correctly. In this case, a module can be removed from the vehicle, and the universal gateway function can be used to externally connect an OBD interface through the module’s connector.

This setup allows diagnostics of the modules on the same bus, functioning identically to the original vehicle’s OBD system.

 

Communication Testing

Overview

1. Two Communication Testing Methods

The device supports two types of communication testing: CAN communication testing and LIN communication testing. The wiring and usage methods for both differ slightly.

 

2. Troubleshooting CAN Wiring Issues

If the module cannot be detected or driven, and power supply and module functionality are confirmed to be normal, the issue may be due to the module being in sleep mode or incorrect CAN wiring, preventing message transmission or module activation.

The CAN communication testing function can help diagnose such issues. If no communication is detected (indicated by a green LED), it usually means the wiring is incorrect. In this case, try swapping the CAN H and CAN L pins or double-checking the circuit diagram to ensure proper connections. A correctly wired connection will be indicated by a blue LED.

If communication is confirmed (blue LED), the wiring is correct, ruling out connection issues. If data still cannot be captured, the module is likely in sleep mode and requires specific conditions to be awakened. If the module cannot be driven, the issue may be incorrect baud rate settings or erroneous data, but at least wiring errors can be ruled out.

 

3. Distinguishing Low-Speed and High-Speed CAN

Traditionally, determining whether a removed vehicle module operates on Low-Speed CAN/Fault-Tolerant CAN (typically 100K baud rate) or High-Speed CAN (typically 500K baud rate) required checking circuit or topology diagrams, which was time-consuming. With the communication testing function, even if the module is in sleep mode, its type can be identified instantly.

 

4. Troubleshooting LIN Wiring Issues

If a LIN protocol-based electric compressor fails to operate, the communication testing function’s "Slave Recognition" feature can help diagnose the issue. If a signal is detected, the wiring and power supply are correct, and the issue likely lies in incorrect baud rate settings, erroneous data, or an incorrect checksum mode. This confirms that the wiring is not the problem.

If no signal is detected despite correct settings, the module cannot be activated. In this case, check if the LIN wiring is connected correctly, whether the LIN2 menu is mistakenly used to drive LIN1, and ensure that the LIN interface and the module share the same power source. Using different power sources may cause supply mismatches, leading to communication failures.

 

5. CAN Communication Testing Steps

5.1 Ensure that T6CANFD device is not connected via USB.

 

5.2 Power T6CANFD device using the positive and negative terminals of the clip (it is recommended to use the same power source as the module).

 

5.3 Connect CAN2_H and CAN2_L of the T6CANFD device to the module.

 

5.4 When the third indicator light changes from green to blue, it indicates that the module's CAN signal has been detected and the wiring is correct.

 

Component Control

1. Compressor Component Control

The accompanying software TabScan EV, includes preloaded compressor control data for various common vehicle models. Users simply need to select the corresponding compressor model, properly connect the high and low-pressure wiring harnesses and communication cables, and then initiate the compressor test with a single click via the menu. This significantly enhances maintenance quality and efficiency.

 

2. DCDC Component Activation

The primary function of a DCDC (DC-DC converter) is voltage conversion. In new energy vehicles, it mainly converts high-voltage electricity into low-voltage electricity to charge the auxiliary battery. The TabScan EV software comes preloaded with DCDC activation data for various common vehicle models, allowing users to conduct targeted testing without the need to manually collect complex model-specific data.

To verify whether the DCDC component is functioning properly, using a multimeter is a simple and intuitive method. Specifically, connect the multimeter to the output terminal of the DCDC unit and carefully observe the voltage reading. If the voltage gradually increases from an initial 11V-12V to a stable range of 13V-14V, it indicates that the DCDC module has successfully started, is operating normally, and is capable of delivering a stable low-voltage power output.

 

Frequently Asked Questions – Common Device Issues

Device Unrecognized Issue

1. T6CANFD Power Indicator Shows a Running Light Pattern, Device Information Cannot Be Read, and the Device Is Unusable

Solution: This issue is most likely caused by an accidental USB disconnection during a firmware upgrade, causing the device to enter boot mode. Please contact the manufacturer's after-sales support at support@eucleia.net for remote troubleshooting and repair assistance.

 

2. Device Unrecognized, with a Warning Icon in Device Manager

Solution: This issue is most likely caused by missing driver installation when prompted during software setup. To resolve this, manually install the driver using the following method.