Volvo 850 Made from 1993 to 1997, this Volvo line was available in both a wagon and a sedan, both with were graced with several trim levels.

PNP Switch replaced, still flashing

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Old Sep 17, 2007 | 06:28 PM
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jayturk99's Avatar
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Default PNP Switch replaced, still flashing

I replaced the PNP switch, cleared the problem for a while, now it's flashing again. I have a generic code of P0735 and P0755. I cleared the codes, once the flashing started again, I can only pu code P0755. What could possibly be the prob. I read about transmission fluid contamination with coolant. There seems to be no obvious water or coolant mixed with trans. fluid. Will try and flush the fluid this weekend. Is there any way to bypass this switch, I live in the south, is there any real use for it down here?
 
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Old Sep 17, 2007 | 07:14 PM
  #2  
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JPN
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Joined: Sep 2006
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From: IPS, MA
Default RE: PNP Switch replaced, still flashing

P0755denotes one of the following:

1. Control module fault.
2. Short to voltage in No.2 shift solenoid circuit.
3. Short to ground in No.2 shift solenoid circuit
4. Open in No.2 shift solenoid circuit.

Does not seem like anything to do with coolant. The solenoid may be shot.


JPN
 
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