If you are able to connect and read your ECU successfully but cannot connect to the ABS, BCM or TCM:
Notes:
- Vehicle Tested: 2004 Nissan Sentra QG18DE
- NDSII Android App with ELM327 Scanner works
Troubleshooting:
- Try adjusting the "Ini timer Offset" value under Settings->Communication. Try different positive and negative values
- Check and make sure you are using the correct Com Port number. Sometimes when you plug in the adapter to another USB port the Com port number changes.
- You will not be able to connect to ECMD (diesel ECM). This only works on diesel cars.
The other ECUs might still be using the older Consult I protocol.