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Auto trans 3-2-5 fault code 850 1994

posted by  someone claiming to be Ray N. on  Thu Sep 19 05:07 CST 2002 [RELATED]

As mentioned, the PNP switch is a very common problem. You
can see more about this at:

http://volvospeed.com/Repair/pnpswitch.htm

A new switch is about $80 with a couple hours labor to replace.
Typically first seen when the weather turns cold (theory being the
grease in the switch is a bit cold at this time). Failure
mode is slow so you can live with it for a while (restarting
the car often clears it).

When the PNP switch went on our 95, shifting from 3rd to D would
cause the up arrow to flash and locked it into limp home mode.
Only happened once but I only tried it once. We had the up arrow
light on and off for a few weeks up til the point I tried this.






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New Auto trans 3-2-5 fault code [850][1994]
posted by  fiatfreak  on Wed Sep 18 21:02 CST 2002 >


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