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Volvo XC90 Integrated Telephone Battery

  • 23-03-2013 11:15AM
    #1
    nw1dqsv7amx026
    Closed Accounts Posts: 336 ✭✭


    My Volvo XC90 has an integrated telephone which stopped working several months ago because the backup battery in the telephone was faulty. I get "Volvo Oncall Service Required".
    To fix could be very expensive as the part is very expensive.
    But now the main battery is dying on a regular basis. I replaced the battery but the problem remained and I have discovered it is due to a constant drain of 0.5 Amps when the car is off.
    Seems the drain was from the phone so I removed the fuse for the phone. But now the Radio and Sat Nav won't work. I thought they had a separate fuse?

    I'm thinking of disconnecting the entire phone unit but have no idea how to do this or if it would work.

    Any suggestions?


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