What to do if the GUTMANN mega macs PC Scanner communication to vehicle cannot be established?
- JJennifer HerreraAug 3, 2025
If the GUTMANN Scanner fails to establish communication with the vehicle, ensure that you have selected the correct vehicle by its engine code. Carefully follow any on-screen information and instructions. Check for a 12V power supply through the vehicle on pin 16 of the PC VCI, as a defective PC VCI could be the cause. You may also want to perform a PC VCI (wireless) diagnostics.