Volvo 850 self-test?

Discussion in 'Volvo 850' started by John in NH, Apr 8, 2004.

  1. John in NH

    John in NH Guest

    Just got my first Volvo today - '94 850 Turbo with just over 100K miles on it.
    I'm very happy - I've wanted one of these wagons for decades. :D

    Anyhow, there are a few things of concern. Rather than list them all here, I
    was wondering the following:

    On Jeep Grand Cherokees, there is a way to run a simple self-diagnostic test by
    yourself with no fancy equipment. Is there something similar in Volvos,
    specifically my model?

    Oh, and is there another way to set the radio code besides with the number
    buttons - my code has two "fours" in it and, of course, the 4 button doesn't
    work. :/

    TIA,
    John in NH
    ~~~

    That's nice, but what does this have to do with Rush?

    My eBay stuff:
    http://tinyurl.com/u0fi
     
    John in NH, Apr 8, 2004
    #1
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  2. John in NH

    Mike F Guest

    For 850s up to and including 1995, see:
    http://www.brickboard.com/FAQ/700-900/EngineOBDCodes.htm
    Even though that's written for the 700/900 models, your 850 is the same

    If your radio code has the number 4 in it, you need the 4 button to
    work.

    --
    Mike F.
    Thornhill (near Toronto), Ont.

    NOTE: new address!!
    Replace tt with t (twice!) and remove parentheses to email me directly.
    (But I check the newsgroup more often than this email address.)
     
    Mike F, Apr 8, 2004
    #2
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  3. John in NH

    David Taylor Guest

    Oh, and is there another way to set the radio code besides with the number
    Well you could pull the radio, then remove the front panel to get at the
    PCB and just use a jumper wire to short the contacts, it's pretty
    straight forward, just two screws to remove.

    David.
     
    David Taylor, Apr 8, 2004
    #3
  4. John in NH

    John in NH Guest

    Thank you but I see you have to buy something that costs about $100 to
    interface with the car. In the Jeeps, it's a diagnostic done with how many
    times the engine light flashes - was hoping there was something like that
    "build in" to the Volvo's too.

    Had to remove the button to get at/clean the microswitch. It works now. Any
    place to get replacement buttons for the radios? :)

    TIA,
    John in NH

    ~~~

    That's nice, but what does this have to do with Rush?

    My eBay stuff:
    http://tinyurl.com/u0fi
     
    John in NH, Apr 8, 2004
    #4
  5. John in NH

    madiba Guest

    Then the website is meant for 850s after 1995. Up to 1995 the 850 had a
    system similar to Jeep with flashing built-in LEDs. From 1996 onwards
    the extra interface is needed.
     
    madiba, Apr 8, 2004
    #5
  6. John in NH

    David Taylor Guest

    Thank you but I see you have to buy something that costs about $100 to
    There is, it's down behind the offside headlight. There's a couple of
    sockets A and B and a jumper wire and an LED. :)
    um, scrapper? Did you break the button? pretty hard to do!

    David.
     
    David Taylor, Apr 8, 2004
    #6
  7. John in NH

    John in NH Guest

    Ah, I'll check it out. . .
    Yeah, pried it out to clean the microswitch and the button's pretty hacked up
    now.

    ~~~

    That's nice, but what does this have to do with Rush?

    My eBay stuff:
    http://tinyurl.com/u0fi
     
    John in NH, Apr 8, 2004
    #7
  8. John in NH

    Mike F Guest

    From the link I gave you, click on
    "General Notes on On-Board Diagnostics in Volvo RWD Cars"
    Follow all instructions for up to 1995 cars. Yours is exactly like
    that, except the A and B boxes are up by the right headlight. No tool
    needed.

    --
    Mike F.
    Thornhill (near Toronto), Ont.

    NOTE: new address!!
    Replace tt with t (twice!) and remove parentheses to email me directly.
    (But I check the newsgroup more often than this email address.)
     
    Mike F, Apr 8, 2004
    #8
  9. John in NH

    Mechanic Guest

    If it's your first one, go to Alldata.com and spend $24 for a year of
    detailed info on your car. Lots of instructions, diagrams, TSB's etc.
    Well worth it.
     
    Mechanic, Apr 8, 2004
    #9
  10. John in NH

    David Taylor Guest

    Yeah, pried it out to clean the microswitch and the button's pretty hacked up
    You should have removed the whole front panel, it's not hard, two screws
    and it unclips.

    David.
     
    David Taylor, Apr 8, 2004
    #10
  11. John in NH

    John in NH Guest

    K. Thanx.
    ~~~

    That's nice, but what does this have to do with Rush?

    My eBay stuff:
    http://tinyurl.com/u0fi
     
    John in NH, Apr 8, 2004
    #11
  12. John in NH

    John in NH Guest

    D'oh. :(
    ~~~

    That's nice, but what does this have to do with Rush?

    My eBay stuff:
    http://tinyurl.com/u0fi
     
    John in NH, Apr 9, 2004
    #12
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