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Discuss FLASHING YELLOW ARROW in the alt.autos.volvo forum at Car Dealer Forums; I OWN AN AUTOMATIC 1994 VOLVO 850 TURBO. CAN SOMEONE PLEASE TELL ME WHY THE ...
  1. #1
    SWEETT110365 via CarKB.com
    Guest

    Default FLASHING YELLOW ARROW

    I OWN AN AUTOMATIC 1994 VOLVO 850 TURBO. CAN SOMEONE PLEASE TELL ME WHY THE
    YELLOW FLASHING ARROW LIGHT IS ON. THE LIGHT WILL COME ON WHEN I'M ABOUT 5 -
    10 MILES FROM HOME. WHILE DRIVING OFF AFTER STOPING IT TAKE OFF REALLY SLOW
    LIKE IT'S IN A LOWER GEAR, ONCE IT GETS UP TO SPEED IT'S OK. I'VE BEEN TOLD
    IT CAN BE ONE OF THREE THINGS, THE PNP SWITCH, OVERDIRVE RELAY, OR THE
    FAILURE SENSOR. I'M HOPING SOMEONE CAN TELL WHAT'S WRONG WITHOUT ME HAVING
    TO TAKE IT TO THE VOLVO DEALER. PLEASE HELP!!!

    TONI

    --
    Message posted via CarKB.com
    http://www.carkb.com/Uwe/Forums.aspx/volvo/200708/1




    › See More: FLASHING YELLOW ARROW

  2. #2
    Steve and Amy Bernth
    Guest

    Default Re: FLASHING YELLOW ARROW

    The flashing arrow means that the computer has detected a problem with your
    transmission, and has put the car in "limp home" mode. It makes the car
    start out in a higher gear (probably 3rd) to attempt to prevent serious
    damage to the transmission, and that is why you are sluggish off the line
    but when you get up to speed it seems ok. It could be a lot of different
    things from not so bad to really bad, but you will need someone with a
    diagnostic computer to find out what is wrong. It does not have to be the
    dealer...any good independent mechanic should be able to tell you what is
    going on.
    ..
    "SWEETT110365 via CarKB.com" <u36696@uwe> wrote in message
    news:7707161ef0c8d@uwe...
    >I OWN AN AUTOMATIC 1994 VOLVO 850 TURBO. CAN SOMEONE PLEASE TELL ME WHY
    >THE
    > YELLOW FLASHING ARROW LIGHT IS ON. THE LIGHT WILL COME ON WHEN I'M ABOUT
    > 5 -
    > 10 MILES FROM HOME. WHILE DRIVING OFF AFTER STOPING IT TAKE OFF REALLY
    > SLOW
    > LIKE IT'S IN A LOWER GEAR, ONCE IT GETS UP TO SPEED IT'S OK. I'VE BEEN
    > TOLD
    > IT CAN BE ONE OF THREE THINGS, THE PNP SWITCH, OVERDIRVE RELAY, OR THE
    > FAILURE SENSOR. I'M HOPING SOMEONE CAN TELL WHAT'S WRONG WITHOUT ME
    > HAVING
    > TO TAKE IT TO THE VOLVO DEALER. PLEASE HELP!!!
    >
    > TONI
    >
    > --
    > Message posted via CarKB.com
    > http://www.carkb.com/Uwe/Forums.aspx/volvo/200708/1
    >




  3. #3
    newsgroups.comcast.net
    Guest

    Default Re: FLASHING YELLOW ARROW

    Mine was a 1996, with 70,000 miles on it when the arrow started flashing.

    I had it towed to my mechanic, who couldn't read it with his computer, so he
    sent me to a tranny shop. I had it towed to the tranny shop, where they
    couldn't read it with their computer, so I had it towed to a dealer. The
    dealer kept it for a week and told me I needed a new tranny for $2500, so I
    had it towed to another dealer. The second dealer looked at it for an hour
    and told me I needed a new tranny for $2800.

    In the end, I sold it to a junkyard for $300 (the stereo was worth about
    twice that). At least he towed it away from the dealer for free.

    All told, it cost me about $300 in towing charges. Plus I lost about $3500
    on the value of the vehicle.

    In retrospect, I bet it was the PNP switch and the two dealers were too dumb
    to know it, or too clever to tell me. I wish I had towed it home and tried
    replacing the PNP myself.

    I've owned a lot of Volvos, and spent a lot of time and $$$ fixing them.
    This one holds the record.

    --
    -RL (1976 264, 1976 262, 1978 264, 1987 240, 1989 240, 1996 850, 2005 Acura
    TSX)



    "Steve and Amy Bernth" <nosbernthspamever@csinet.net> wrote in message
    news:C56dnQM7WYw1LlbbnZ2dnUVZ_s-pnZ2d@csinet.net...
    > The flashing arrow means that the computer has detected a problem with
    > your transmission, and has put the car in "limp home" mode. It makes the
    > car start out in a higher gear (probably 3rd) to attempt to prevent
    > serious damage to the transmission, and that is why you are sluggish off
    > the line but when you get up to speed it seems ok. It could be a lot of
    > different things from not so bad to really bad, but you will need someone
    > with a diagnostic computer to find out what is wrong. It does not have to
    > be the dealer...any good independent mechanic should be able to tell you
    > what is going on.
    > .
    > "SWEETT110365 via CarKB.com" <u36696@uwe> wrote in message
    > news:7707161ef0c8d@uwe...
    >>I OWN AN AUTOMATIC 1994 VOLVO 850 TURBO. CAN SOMEONE PLEASE TELL ME WHY
    >>THE
    >> YELLOW FLASHING ARROW LIGHT IS ON. THE LIGHT WILL COME ON WHEN I'M ABOUT
    >> 5 -
    >> 10 MILES FROM HOME. WHILE DRIVING OFF AFTER STOPING IT TAKE OFF REALLY
    >> SLOW
    >> LIKE IT'S IN A LOWER GEAR, ONCE IT GETS UP TO SPEED IT'S OK. I'VE BEEN
    >> TOLD
    >> IT CAN BE ONE OF THREE THINGS, THE PNP SWITCH, OVERDIRVE RELAY, OR THE
    >> FAILURE SENSOR. I'M HOPING SOMEONE CAN TELL WHAT'S WRONG WITHOUT ME
    >> HAVING
    >> TO TAKE IT TO THE VOLVO DEALER. PLEASE HELP!!!
    >>
    >> TONI
    >>
    >> --
    >> Message posted via CarKB.com
    >> http://www.carkb.com/Uwe/Forums.aspx/volvo/200708/1
    >>

    >
    >




  4. #4
    SWEETT110365 via CarKB.com
    Guest

    Default Re: FLASHING YELLOW ARROW

    newsgroups.comcast.net wrote:
    >Mine was a 1996, with 70,000 miles on it when the arrow started flashing.
    >
    >I had it towed to my mechanic, who couldn't read it with his computer, so he
    >sent me to a tranny shop. I had it towed to the tranny shop, where they
    >couldn't read it with their computer, so I had it towed to a dealer. The
    >dealer kept it for a week and told me I needed a new tranny for $2500, so I
    >had it towed to another dealer. The second dealer looked at it for an hour
    >and told me I needed a new tranny for $2800.
    >
    >In the end, I sold it to a junkyard for $300 (the stereo was worth about
    >twice that). At least he towed it away from the dealer for free.
    >
    >All told, it cost me about $300 in towing charges. Plus I lost about $3500
    >on the value of the vehicle.
    >
    >In retrospect, I bet it was the PNP switch and the two dealers were too dumb
    >to know it, or too clever to tell me. I wish I had towed it home and tried
    >replacing the PNP myself.
    >
    >I've owned a lot of Volvos, and spent a lot of time and $$$ fixing them.
    >This one holds the record.
    >
    >> The flashing arrow means that the computer has detected a problem with
    >> your transmission, and has put the car in "limp home" mode. It makes the

    >[quoted text clipped - 20 lines]
    >>>
    >>> TONI



    SO WHERE EXACTLY IS THE PNP SWITCH LOCATED? IS IT VERY COMPLICATED REPLACE?

    --
    Message posted via http://www.carkb.com


  5. #5
    Stephen Henning
    Guest

    Default Re: FLASHING YELLOW ARROW

    "newsgroups.comcast.net" <RLutwak@Comcast.net> wrote:

    > In retrospect, I bet it was the PNP switch and the two dealers were too dumb
    > to know it, or too clever to tell me. I wish I had towed it home and tried
    > replacing the PNP myself.


    The limp mode is the same as Winter mode. The car stays in 3rd gear and
    has very poor acceleration. It doesn't hurt the transmission to run in
    limp mode.

    Mine was the PNP switch. With the PNP switch, the car resets itself from
    the limp mode when you shut the ignition off. My PNP switch was only
    bad in 3rd gear on a 4 speed AT in a '95 850. Sometimes when I would
    downshift the AT into 3rd when slowing down, it would go into limp mode
    and start the yellow light flashing. It would continue flashing for
    about a week even after it reset itself.

    My dealer blindly read the error code and mistakenly replaced the input
    speed sensor and the output speed sensor before someone in this group
    told me what it was. They charged me for the first two needless
    repairs, but the final necessary one was free.

    The PNP switch tells the computer which gear the transmission is in.
    Then the computer takes the input speed and the output speed and
    computes what the gear ratio is. If the ratio disagrees with the PNP
    switch information, then it generates an error. It can be any of the 3
    parts, but seldom is the transmission itself. If it does it in any
    gear (L, 3, D) then it could be one of the speed sensors. If it only
    does it in one of the 3 positions, then it is the PNP switch.

    I also had a '93 850 in which the AT did completely fail. The car would
    not go anywhere. Then they put in a rebuilt AT. It was worth it. The
    car was worth twice as much as the rebuilt AT. That is one problem with
    Volvos, their value is enough that they are almost always worth fixing.
    The catch is that you must sell them to recover your investment. But I
    have been lucky and always got all the miles I wanted and then sold them
    for top dollar privately.

    The only problems I have had were a soft cam shaft in a 240 and a bad AT
    in the '93 850. I both cases I got about 80,000 miles before the
    problem occurred. My other 8 Volvos have not had any major problems.
    --
    Cheers, Steve Henning in Reading, PA, USA
    Owned '67,'68,'71,'74,'79,'81,'87,'93,'95 & '01 Volvos.
    The '67,'74,'79,'87,'95 and '01 through European Delivery.
    http://rhodyman.net/homevo.html

  6. #6
    colin21@hotmail.com
    Guest

    Default Re: FLASHING YELLOW ARROW

    On Wed, 22 Aug 2007 09:17:21 -0400, Stephen Henning <pighash@aol.com>
    wrote:

    >"newsgroups.comcast.net" <RLutwak@Comcast.net> wrote:
    >
    >> In retrospect, I bet it was the PNP switch and the two dealers were too dumb
    >> to know it, or too clever to tell me. I wish I had towed it home and tried
    >> replacing the PNP myself.

    >
    >The limp mode is the same as Winter mode. The car stays in 3rd gear and
    >has very poor acceleration. It doesn't hurt the transmission to run in
    >limp mode.
    >
    >Mine was the PNP switch. With the PNP switch, the car resets itself from
    >the limp mode when you shut the ignition off. My PNP switch was only
    >bad in 3rd gear on a 4 speed AT in a '95 850. Sometimes when I would
    >downshift the AT into 3rd when slowing down, it would go into limp mode
    >and start the yellow light flashing. It would continue flashing for
    >about a week even after it reset itself.
    >
    >My dealer blindly read the error code and mistakenly replaced the input
    >speed sensor and the output speed sensor before someone in this group
    >told me what it was. They charged me for the first two needless
    >repairs, but the final necessary one was free.
    >
    >The PNP switch tells the computer which gear the transmission is in.
    >Then the computer takes the input speed and the output speed and
    >computes what the gear ratio is. If the ratio disagrees with the PNP
    >switch information, then it generates an error. It can be any of the 3
    >parts, but seldom is the transmission itself. If it does it in any
    >gear (L, 3, D) then it could be one of the speed sensors. If it only
    >does it in one of the 3 positions, then it is the PNP switch.
    >
    >I also had a '93 850 in which the AT did completely fail. The car would
    >not go anywhere. Then they put in a rebuilt AT. It was worth it. The
    >car was worth twice as much as the rebuilt AT. That is one problem with
    >Volvos, their value is enough that they are almost always worth fixing.
    >The catch is that you must sell them to recover your investment. But I
    >have been lucky and always got all the miles I wanted and then sold them
    >for top dollar privately.
    >
    >The only problems I have had were a soft cam shaft in a 240 and a bad AT
    >in the '93 850. I both cases I got about 80,000 miles before the
    >problem occurred. My other 8 Volvos have not had any major problems.



    hi
    i had the dreaded flashing up arrow, after it came back from a
    service,

    it can sometimes be cured by putting the car in neutral, switch the
    engine off, then move the shift lever back and forwards through all
    the positions about 10 times, it is the contacts on the pnp switch but
    you usualy cannot repair it by taking it off, but this little tip has
    fixed mine and 2 other volvos.

    col

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