I have a 2003 Nissan Terrano 2, 3.0ltr and son has a 2006 Ford Focus 1800 TDCi which are both supposed to be OBD 11 compliant but mine does not have a sticker under bonnet and sons ford does have but neither car will communicate with code reader.
Has anyone else tried any code readers and had same problem or do I have a faulty code reader?