Test U: The Universal Serial Bus (USB) Port Is Inoperative/Does Not Operate Correctly

PINPOINT TEST U: THE UNIVERSAL SERIAL BUS (USB) PORT IS INOPERATIVE/DOES NOT OPERATE CORRECTLY

Normal Operation
The universal serial bus (USB) port is connected to the accessory protocol interface module (APIM) through the USB cable. The USB port can be used for mass storage devices, or for connecting a media device. In addition, the USB port charges any device plugged into it. Because of this feature, when a USB device is plugged into the USB port, the SYNC system does not automatically switch to the device.

The USB cable and port are not serviceable separately.

- DTC U261C (USB #1 Device Error) - sets when the APIM detects an over-current or over-temperature condition in the USB circuit. This can be caused by a fault in the USB cable or port, or by the customer USB device.

This pinpoint test is intended to diagnose the following:
- Customer USB device
- System conflict
- USB cable and port
- APIM

U1-U3:

U4-U5: