BMW EDC17CP09 ECU Read Tool selection: OBDSTAR, Autel or X-PROG3?

 In this blog, we’ll break down a real-world attempt to read this Bosch EDC17CP09 (DDE) using different tools, the challenges faced, and the eventual solutions that worked.


Read EDC17CP09 ECU with OBDSTAR, Autel or X-prog3

Tools Tested for Reading BMW EDC17CP09

1. OBDStar DC706

  • Issue: The tool suggested installing a 120 Ohm resistor but still couldn’t establish a connection.
  • Solution: Later discovered a missing ignition power pin in the wiring setup — once corrected, the read worked.
  • Lesson: Always double-check pinouts and wiring diagrams!

Read EDC17CP09 ECU with OBDSTAR, Autel or X-prog3

2. Autel IM608 (Partial Success)

  • Method: Used the EEPROM section with direct bench connection.
  • Successfully Read:
  • ISN (Immobilizer Security Number) — Useful for module transfers.
  • Flash files — Required soldering a boot pin and using the XP400 Pro programmer.
  • Limitation: Couldn’t extract full EEPROM files via OBD alone.

Read EDC17CP09 ECU with OBDSTAR, Autel or X-prog3



Read EDC17CP09 ECU with OBDSTAR, Autel or X-prog3
Read EDC17CP09 ECU with OBDSTAR, Autel or X-prog3

3. X-prog3/ Launch X-431 Tablet ( — Success!)

  • Method: Used bench mode with a custom harness.
  • Successfully Read:
  • Full EEPROM & Flash files — Required direct chip access.
  • File Transfer Issue: Couldn’t directly copy files to USB — had to email them via Gmail from the tablet.

Read EDC17CP09 ECU with OBDSTAR, Autel or X-prog3


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