Overloading during the USB test
The vehicle is not able to deliver the required level of current. The voltage (1) collapses and the current is thus limited.
Troubleshooting:
- The customer may have attached a USB hub (distributor) to the vehicle USB connection. Always run the USB test directly on the USB connection in the vehicle!
- Check the USB connection.
- Check wires and plug connections in vehicle.
- Check control unit.
NOTE:
If the test was not
successful, a vehicle diagnosis must be carried out with ISTA!