How to check if Hondash scanner will work with my ECU?

1. 3-pin or 5-pin diagnostic connector (DLC)

   All Honda models produced in 1992 - 2001 (gasoline engines only) that use the 3-pin or the 5-pin diagnostic connector (DLC) 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.
   
   
   

   Possible diagnostic connector locations

   
   

   

   3-pin connector

   

   5-pin connector

   Connector style	Number of connected wires
   3-pin connector	3 wires
   	2 wires (requires an external power source)
   5-pin connector (requires a 5-to-3-pin adapter {discontinued} or custom wiring)	5 wires
   	3 wires
   	4 wires (missing communication wire)

   
   

   Market	OBD
   United States, Canada	'92-'95 (OBD1 only)
   Worldwide (Europe, Japan, Australia, Russia, Brazil, etc...)	'92-'01 (OBD1/2A/2B) *some markets until '03




2. Immobilizer

   (This point does not apply to ECUs that don't have an immobilizer from the factory) If your ECU was originally equipped with an immobilizer and you modified / removed it, you may not be able to use Hondash. If you need to bypass the immobilizer use a specialized bypass module such as Doctronic's Mobilizer A0 module.



3. Aftermarket / chipped / swapped ECU and other mods

   If you're using an aftermarket / remapped / chipped ECU etc., refer to the general compatibility guidelines, otherwise if you swapped ECU and/or wiring harness etc., follow the wiring guide and make sure your setup is compatible

Note on late transitional 16-pin ports: Car models that use the 16-pin diagnostic connector, i.e., standard OBD2 socket (US/CA '96-, others '99-), are officially not supported and require a ELM327 scanner to work with the Hondash app. Some late '99–'00 EU models feature a 16-pin port but may theoretically work via manual direct ECU wiring if the ECU outputs a 5V PGM-FI data signal on its communication pin. However, because hardware layouts vary widely on these transitional models, you must verify pinouts and ensure the communication line operates at maximum 5V with a multimeter before connecting. Refer to the manual direct-wiring guide.

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.