Possible fault patterns during CURRENT CHECK test: Notes

No voltage or no current during the USB test 

Fig 1: Display - Current Check Test Screen

Courtesy of BMW OF NORTH AMERICA, INC.

The graphics shows the case if the USB cable has not been connected or the USB connection in the vehicle is not supplying any voltage. The current supplied by the vehicle (orange line) remains at 0mA and the voltage (green line) is not visible because it is below the range shown on the display.

Troubleshooting: 

• Check USB cable connection between IMIB and vehicle.
• Check lines and plug connections in vehicle.
• Check the USB connection.
• Check control unit.
• Check fuse F26.