Saturday, July 13, 2019

How to check if Hondash will work with my ECU?

Follow these simple steps to determine whether the Hondash will work with your ECU.
  1.   3 pin or 5 pin diagnostic connector (DLC)

    All Honda models produced in 1992 - 2001 that use the 3 pin or the 5 pin DLC diagnostic connector are compatible with Hondash. If you can find either the 3 pin or the 5 pin diagnostic connector in your car, your ECU is compatible.
    hondash dlc connector 3 pin
    3 pin DLC connector
    hondash dlc connector 5 pin
    5 pin DLC connector

    Applies to:
    • gasoline engines only
    • United StatesOBD1'92-'95
      Worldwide
      (Europe, Japan, Australia, Russia,
      etc...)
      OBD1'92-'95
      OBD2 A'96-'99
      OBD2 B'99-'01 (some markets until '03)

    Depending on car model and build year:
    • the 3 pin connector can have either 2 or 3 wires, the 2 wire version requires an external power source
    • the 5 pin connector either 3 or 5 wires, in this case the communication wire must be present in connector and the "5 to 3 pin adapter" (sold separately) is required to connect the Hondash scanner.

  2.    3 pin / 5 pin voltage levels

    You may also check voltage levels on pins of the DLC diagnostic connector to determine its working status thus avoiding possible issues during installation.

  3.   Immobilizer

    If your ECU was modified with a procedure to disable immobilizer on hardware level (installed IMMO OFF board, immobilizer physically removed, etc.) the ECU will very likely not work with Hondash as we've already seen in a few instances involving such mods. It seems as though an immobilizer circuit plays a crucial part in communication with ECU via diagnostics port.

  4.   Aftermarket / Chipped ECU and other mods

    If you're using aftermarket, remapped, chipped or otherwise modified ECU, modified or swapped wiring harness, etc., follow the guide on Aftermarket / Chipped ECU to make sure your setup will be compatible



Tested / Compatible ECU OBD table

This check is optional, only the above-mentioned steps are important and required to determine compatibility with Hondash. However you may check the table to see what ECU versions have already been tested by us. You may find your ECU listed here, if not, just make sure your ECU meets the criteria described in the above-mentioned steps.