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ZN073 BDM adapter pinout: connector A standard 10-pin and connector B Bosch EDC 14-pin

Strumenti Interface Classic Hardware / Connections Advanced ⏱ 15 min 5 steps

Pin layout for the two BDM connectors on the ZN073: connector A is the standard 10-pin BDM, connector B is the 14-pin Bosch EDC BDM. Use it to build or check the flat cable before you hook up to the ECU.

Required licences

  • —

Hardware / cables

  • ZN073 BDM ECU Programmer
  • ZN045 programmatore ABPROG
  • cavo flat (ribbon)
  • header PCB doppia fila passo 1.27 mm
⚠ WarningMiswiring the BDM cable can permanently damage the adapter and/or the ECU: check it pin by pin before applying power.

Procedure

  1. Connector A - standard 10-pin BDM: Pin 1 = VFLS 0, Pin 2 = Not Connected, Pin 3 = GND, Pin 4 = DSCK, Pin 5 = GND, Pin 6 = VFLS 1, Pin 7 = HRESET, Pin 8 = DSDI, Pin 9 = VCC, Pin 10 = DSDO.
  2. Connector B - 14-pin Bosch EDC BDM: Pin 1 = HRESET, Pin 2 = Not Connected, Pin 3 = DSCK, Pin 4 = DSDI, Pin 5 = Not Connected, Pin 6 = VCC, Pin 7 = Not Connected, Pin 8 = DSDO, Pin 9 = Not Connected, Pin 10 = GND, Pin 11 = VFLS 1, Pin 12 = Not Connected, Pin 13 = VFLS 0, Pin 14 = Not Connected.
  3. Make up the flat cable respecting pin 1 orientation at both ends and check continuity with a multimeter before connecting the ECU.
  4. Remember that a double-row 14-pin header with 1.27 mm pitch has to be soldered to the ECU's test points.
  5. Connect the flat cable to the ZN073 adapter first, then the ZN073 to the ZN045 and the ZN045 to the AVDI, and only after that power the system following the sequence laid down for BDM.

Reference screenshots

ZN073 BDM adapter pinout: connector A standard 10-pin and connector B Bosch EDC 14-pin — 1ZN073 BDM adapter pinout: connector A standard 10-pin and connector B Bosch EDC 14-pin — 2
Source: Manuale Abrites Programmer, cap. 9 - ABPROG to BDM adapter pinout (p.37, p.39) · ⏱ estimated time 15 min
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