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Test Blower Motor Controller? 850 95

posted by  someone claiming to be Rich S. on  Sun Dec 24 04:09 CST 2000 [RELATED]

The blower motor on our '95 855T (90k miles) failed after making noises for a few days in cold weather. There is a "411-blower fan seized or drawing excessive current" code on the B1 connector. I have a replacement motor and a time over the holidays to make the changeover.

In research here and at Volvospeed, and in the Haynes manual, there are references to a "controller", "power stage" and "heater fan motor resistor." A few messages said it should be tested and/or replaced when the blower motor is changed.

If I am replacing the blower motor, and "B1-411" is the only diagnostic code, should I still worry about the "controller"? If the controller was bad, wouldn't I get the "B1-418-no control signal to blower fan power stage" or the "B1-419-faulty diagnostic signal from blower fan power stage"?

....Merry Christmas, Rich S.





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New Test Blower Motor Controller? [850][95]
posted by  someone claiming to be Rich S.  on Sun Dec 24 04:09 CST 2000 >


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