Checking the wiring and component

Check the cable between the antenna amplifier #C1 and head unit/audio control module #A9 for a short-circuit to supply voltage according to Short-circuit to supply voltage, permanent faults .

Remedy as necessary.

If no fault is found, replace the antenna amplifier.

Other information 

• See Radio/carphone, replacing (-2004)  or Audio unit, replacing (2005-) 
• See Windshield antenna and amplifier, replacing 
• See Connecting the breakout box, Audio control module 
• See Signal specification, audio control module 

Fig 1: Breakout Box

Courtesy of VOLVO CARS OF NORTH AMERICA.

Select "Continue" when the fault has been remedied. 

• Continue 

  Refer to Verification