USB Connection BASEPLATE -R193-

Special tools and workshop equipment required 

• Hand-held Multimeter V.A.G 1526C
• Connector Test Kit V.A.G 1594C

The USB connection is not capable of On Board Diagnostics (OBD).

The voltage supply can be checked at the connector.

Test Conditions 

• USB memory stick/MP3 player OK. Refer to the Operating Instructions.
• Fuse OK. Refer to the appropriate SYSTEM WIRING DIAGRAMS information.
• Radio/Radio Navigation System no faults. Refer to Vehicle Diagnosis, Testing and Information System VAS 5051B

Procedure 

-- Remove the USB connection baseplate. Refer to USB CONNECTION BASEPLATE -R193- .

-- Disconnect the connector under the USB connection baseplate.

-- Switch on the radio.

-- Measure the voltage between contacts 3 and 6 as well as between contacts 3 and 8 on the wiring harness connector V.A.G 1526C and the cables from the V.A.G 1594C.

Specified value: approximately 12 V

-- Switch radio off.

Voltage values not OK:

-- Check the wire connections between the radio and the USB connection baseplate according to the wiring diagram. Refer to the appropriate SYSTEM WIRING DIAGRAMS information.

Voltage values OK:

-- Replace the USB connection baseplate.