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The TopDiag BT400 Power Tool is a comprehensive and multi-functional automotive diagnostic tool designed to streamline vehicle maintenance and service. It offers a range of features including battery replacement with ECU memory saved, OBD2 PIN OUT breakout voltage values, electric current leakage detection, and professional battery condition analysis. The device aims to make vehicle maintenance fast, easy, and convenient for users.
The BT400 Power Tool serves several key functions:
Battery Replacement with ECU Memory Saved: This feature allows users to replace a vehicle's battery while preserving the ECU (Engine Control Unit) memory data. This is crucial for preventing loss of vehicle settings and adaptations during battery changes. The process involves connecting the BT400 to a spare battery and then to the vehicle's OBD2 port, guiding the user through the steps to ensure a smooth transition.
Electric Current Leakage Detection: The device can detect current leakage in a vehicle's electrical system. It monitors current changes when fuses or electrical components are unplugged, helping to identify potential leakage points in the fuse circuit or related components. The tool can record leakage current data and waveforms for up to 30 minutes, allowing for detailed analysis and troubleshooting.
OBD2 PIN OUT Voltage Detection: The BT400 can display the voltage value of each pin on the OBD2 connector. This is useful for diagnosing issues related to the vehicle's communication bus and power supply through the OBD2 port.
Professional Battery Analyzing: This function provides a comprehensive analysis of the battery's condition, including starting tests and charging tests. It supports various battery CCA (Cold Cranking Amps) standards such as CCA, JIS, GB, SAE, MCA, CA, DIN, IEC, EN, and BCI, ensuring compatibility with a wide range of vehicle batteries.
The BT400 is designed for ease of use with a clear, menu-driven interface.
Battery Replacement: To replace a battery, users connect the BT400 to a spare battery (red clip to positive, black clip to negative) and then plug the OBD2 adapter into the vehicle's Data Link Connector socket. Selecting the "Replace battery" function and pressing OK initiates a guided process. The device ensures that the vehicle's ECU memory is saved during the replacement.
OBD Voltage Detection: Users can select the "OBD II/OBD-PIN" function and press OK to view the voltage values of each pin on the OBD2 connector, providing immediate diagnostic information.
Automobile Electric Leakage Detection: For leakage detection, the device is connected to a spare battery and then to the vehicle's OBD2 port. By selecting the "Current" menu, the tool enters a waveform monitoring interface. Users then unplug car fuses or related electrical components to observe current changes. An instant drop or abnormal reading indicates a potential leakage point, which can then be cross-referenced with the car's electrical system diagram. The device can save up to 30 minutes of leakage current data for later review.
Electric Leakage Data Playback: Recorded leakage data can be reviewed by selecting the "Review Waveform" option under the "Current" menu. This allows users to analyze past leakage events and waveforms.
Battery Analyzer: The "BAT Test" function allows for comprehensive battery analysis. After pressing OK, users can select from various test statuses (In-Vehicle, Out-Of-Vehicle) and battery types (Regular Flooded, AGM Flat Plate, AGM Spiral, GEL, EFB). The tool performs charge and start tests, providing results based on different CCA standards.
Electric Leakage Calibration: The device includes a calibration mode for electric leakage. If the non-load current displays an abnormal value (e.g., 3mA), users can input a corrective value (e.g., -3mA) to calibrate the reading. This function is designed for abnormal current displays in non-load circuit systems and is automatically hidden after operation, but can be re-entered using a specific key sequence (LEFT->LEFT->RIGHT->RIGHT->UP->DOWN->OK).
System Setting and Language Switching: Users can access system settings, including language selection, by navigating through the "BAT Test" menu and selecting "Setup." The device supports multiple languages, and changes are saved by pressing the OK key.
The manual emphasizes several safety precautions to prevent personal injury or damage to the vehicle and the tool:
The BT400 comes with a one-year warranty from the date of original purchase, provided it is bought from an official channel. The warranty covers repairing or replacing new equipment without additional cost, requiring regular sales invoices or copies. It does not cover unauthorized disassembly, damage from flooding, lightning strikes, or repairs by unauthorized shops. JDiag Technology is not responsible for damages caused by misuse or improper installation. All information in the manual is based on the latest available data, and JDiag Technology reserves the right to make changes without notice. For service or questions, users are advised to contact their local authorized dealer or visit the official website.
General| Brand | JDiag |
|---|---|
| Model | TopDiag BT400 |
| Category | Diagnostic Equipment |
| Language | English |
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