This review explores the software options and functionality of an ELM327 OBD2 WiFi scanner, focusing on setup, diagnostic capabilities, and real-world testing using TouchScan software.
After configuring the ELM327 OBD2 WiFi scanner hardware, the next step is installing the software. The included CD offers basic options, with ScanTool.net for Windows v1.13 being the only free, non-demo version. This software allows for basic code scanning, clearing, and checking engine light status, along with limited sensor data display.
While the included software options are limited, a more promising program called TouchScan was discovered online. A fully functional 14-day demo allowed for thorough evaluation. TouchScan boasts advanced features such as diagnostic code retrieval and clearing, comprehensive sensor data display, real-time statistics, freeze frame data, vehicle information, a customizable dashboard, and, most notably, the ability to record and playback test drives.
Setting Up TouchScan with the ELM327
Connecting TouchScan to the ELM327 is straightforward. The AutoDetect feature scans available COM ports and baud rates to establish a connection. In testing, the scanner connected via COM5 at 115200 baud using the ISO 15765-4 CAN 11 bit protocol. Successful connection is indicated by green “Interface” and “ECU” bars.
Exploring TouchScan’s Features: Dashboard and Diagnostics
Once connected, the customizable dashboard displays real-time data, allowing for observation of gauge fluctuations during operation.
To test the diagnostic capabilities, a fault was induced by unplugging the MAF sensor. This resulted in illuminated CEL, TRAC, and VSC lights and stored trouble codes P0102 and P0113 within the ECU.
TouchScan’s Freeze Frame Data provided a snapshot of the conditions at the time of the fault, including engine temperature and time since starting.
Clearing the codes via TouchScan successfully extinguished the warning lights.
Test Drive Recording and Playback: A Standout Feature
The Record function allows for capturing data during a test drive. After recording a 12-minute drive, playback provided a detailed, real-time replay of the recorded data, enabling in-depth analysis of vehicle performance.
This functionality offers invaluable insights into vehicle behavior under various driving conditions.
Additional Information and Conclusion
TouchScan provides a wealth of additional vehicle information, ranging from generic OBD2 data to manufacturer-specific parameters. Disconnecting the software after use is crucial to release the COM port and prevent connection issues.
The full version of TouchScan, priced at $24.95 with unlimited upgrades, offers compelling value. The ELM327 OBD2 WiFi scanner, coupled with comprehensive software like TouchScan, provides a cost-effective solution for diagnostic code reading, troubleshooting, and in-depth vehicle analysis. This setup is highly recommended for anyone seeking a powerful yet affordable diagnostic tool.
