ECU Display TcG

10+
Downloads
Content rating
Everyone
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About this app

This App provides additional vehicle instrumentation gauges, error codes and tuning parameters in real time while the car's engine is running.

Error codes can be looked up using Google AI for code meaning and a fix suggestion.

Suits most Vehicles:
Toyota, Wolkswagen, Ford, Mercedes, General Motors, Tata, Stellantis, SAIC, Nissan, Honda, Suzuki, BYD, Subaru,Holden, etc.

An OBD-II Bluetooth Low Energy dongle is required to be plugged into the car's diagnostic port:
eg: OBD2-AUSTRALIA
- or -
eg: ELM 327 mini
- etc -
1) Devices Tab shows Bluetooth devices available for connection. (select the one that matches the diagnostic dongle use, eg: OBD2-AUS
2) Errors Tab shows Vehicle Error Codes. Error codes can be cleared.
3) Gauges Tab shows Data for selected PIDs.
4) Graphs Tab shows Live Historical data.
5) Debug Tab shows debug messages.

Prerequisites:
1) OBDII BT LE (Low Energy) diagnostic device plugged and paired.
2) App permissions for Nearby devices. (This must be applied after download and before app is started)

More information is available here:
1) https://en.wikipedia.org/wiki/On-board_diagnostics
2) https://en.wikipedia.org/wiki/OBD-II_PIDs

To request a new feature, or to correct an existing one, please email the developer:

tcgtvos@gmail.com
Updated on
Feb 7, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

What’s new

Config: pids grouped
Gauges: formatting changes
Charts: formatting changes
Errors: formatting changes