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.
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!
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.
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.
