1995 Volvo 850 - Trouble Code P0755

My check engine light is on and the only code I see is P0755, but it isn't always there, it comes and goes. I am not seeing any performance degredation so I wonder why this code comes and goes. Also, I noticed the following weird behavior. My code reader will read the codes every minute or so, if I put the car into "winter" mode, the orange arrow appears on the dash board. Now, my code reader kicks on some time later and as soon as the reader finished reading codes, the orange arrow goes off and the car switches out of winter mode.

It seems to me that I have an electrical issue somewhere, but where do I begin to track it down?

Any help would be appreciated.

--Mark

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Mark from Geneva
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