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Is this a PNP-switch problem? 850

posted by  Yuri on  Sun Jan 19 06:03 CST 2003
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The problem started last winter - the UP (transmission) arrow would blink when I shifted from P to N or D. Once I pulled "Incorrect gear ratio" form the diagnostic connector. Transmission worked well otherwise.

This winter the problem got worse, the arrow blinking (random, when shifting, not a controlled blinking) became quite bad, and backup light would be turned on intermittently. The rest was still OK. But yesterday, when it was really cold in NYC (10 F), the transmission acted strangly. Often, it would not shift up and get stuck ot a low gear (1st?). Sometimes it would shift harshly. When it warmed up, everything was back to normal.
My questions are: is this a PNP switch or worse? I plan to change it myself (thank you, Bay 13!), but it is too cold now for this job. Will I get stranded one day this winter or it will last till spring? I am sure others went through this.

Thank you!








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    Is this a PNP-switch problem? 850

    posted by  someone claiming to be Ray N on  Sun Jan 19 16:38 CST 2003 [RELATED]

    Sounds very similar to what we experienced with our 95. Drove it
    for about 8 months before it was replaced. I don't think it will
    leave you stranded.








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    Is this a PNP-switch problem? 850

    posted by  someone claiming to be rich g. on  Sun Jan 19 15:48 CST 2003 [RELATED]

    HI,
    Sure sounds like the PNP switch. My wife`s 855 tranny does the same thing everytime it gets cold( we live north of Montana)but so far, this winter it hasn`t been all that cold so no problems thus far. It`s supposed to get cold mid-week so we`ll see if the symptoms return.
    She hasn`t been left stranded in the 2+ years we`ve owned the car but it can be a pain when the car stays in low gear `til it warms up.
    Good luck!
    Rich







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