Both are quite easy and suitable for all ODB2 engines. 6 new Read Obd2 Codes Without Scanner Ford Focus results have been found in the last 90 days, which means that every 15, a new Read Obd2 Codes Without Scanner Ford Focus result is figured out. If other codes are present, they must be addressed first. It will not reset air bag lights or lights related to. That being said, although it won't read the most useful Ford diesel codes, a generic OBD-II code reader should at least connect and pull some of the generic codes (typically we see people saying 'My SES light is ON but I have no codes' when using one of them) So, I think you have another issue with it too.You may need to specifically select “OBD II Generic” from the scan tool menu. This code reader reads and clears trouble codes in all. Use the ZUS App as an example, after creating your vehicle profile and pairing the OBD-II Scanner, you can do the following. Read obd2 codes without scanner ford Adopt the battery disconnecting approach.