# \#obd

**URL:** https://community.tunersguild.com/tag/obd/30.md

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## [OBD vs Bench vs BDM — When to Use Which Read Method](https://community.tunersguild.com/t/obd-vs-bench-vs-bdm-when-to-use-which-read-method/40)

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**Author:** [@ThomasPirowski](https://community.tunersguild.com/u/ThomasPirowski)\
**Replies:** 0\
**Last updated:** [February 17, 2026, 11:50am UTC](https://community.tunersguild.com/t/obd-vs-bench-vs-bdm-when-to-use-which-read-method/40 "2026-02-17T11:50:00Z")

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OBD: Fast, no disassembly, low risk. Use when the ECU supports full OBD read/write. Bench: Full access regardless of OBD protection. Requires disassembly and correct pinout knowledge. BDM / JTAG / BSL: Access to everyt…