Q: What is J2534?
A: This is actually a specification developed by the Society of Automotive Engineers or SAE. The specification describes the Application Program Interface (API) of a way a Vehicle Communications Device can reprogram a Vehicles’ PCM through a Personal Computer. 

Q: What types of PCM's does the Pass Thru Pro Cover?
A: It typically covers ECM/PCM and TCM engine performance and type programming primarily for emissions however some OEM’s offer additional capabilities. Check with the OEM website as there should be information there. 

Q: How do I navigate through the manufactures web site?
A: This may be different for each manufacturer however you may be able to contact the manufacture through their web site if you need additional assistance. 

Q: How do I know that my update is downloaded to my PC?
A: There are two different downloads.The Pass-Thru-Pro software and the vehicle manufacturers. The Pass-Thru-Pro should only been done with first time installation. There is also vehicle manufacture specific software that should acknowledge that the calibration or update has been downloaded. 

Q: What are the part numbers for the product & adapters we might need?
A: These should be listed on this website however there may be specific adapters for other manufacturers. Please check the manufacturers’ website for additional adapters. 

Q: Who do I contact for Technical Support?
A: The Passthru phone number is +8675583271865 or +8675583271875. This support number can assist in the installation and troubleshooting of the Passthru-Pro unit only from AUTOSVS GROUP. 

Q: Why aren't all manufactures on the list? When will they be there?
A: Not all manufacturers are available at this time but should be coming on line shortly. 

Q: Are there any precautions I have to take when programming a vehicle?
A: The internet connection should be stable as some OEM’s require a continuous connection and a high quality battery charger capable of a continuous charge rat. Please note that if voltage drops too low, the vehicles ECM may be damaged. 

Q: How do I make sure that Passthru is working correctly?
A: Connect the Passthru device to the computer, connect the OBD cable to an OBD2 capable vehicle and select the “Passthru Checker” from the programs. This software will communicate with the Vehicles PCM and confirm the Pass-Thu device is working. The software will list which protocol the PCM is communicating with. 

Q: How do I know if the Pass-Thru-Pro has been validated by the OEM?
A: Normally there is a list of validated Pass-Thru manufacturers on the OEM website. 

Q: How long does it typically take to complete a download?
A: The Vehicle calibrations download is dependant on the OEM and the system being programmed and may take a few seconds to several hours. 

Q: What type of HW and SW need to be in my PC?
A: The OEM will describe this requirement on their web site.