I have a 1995 855T with a strange blower motor condition that began in the summer and has grown progressively worse. If it is cold outside 45F or below and the car is cold (as in first start of the morning or after prolonged sitting) the blower motor works just fine. If the car warms up and then I turn off the ignition (or on warm days) when I turn on the blower I receive the blinking ECC lights. I have pulled off both 4-1-1 (blower) and 4-1-9 (power stage) codes. Any thoughts on which is the culprit or possibly beginning of a malfunctioning ecc?

Of note, last winter the blower fan squealed when cold outside but no squeal when working this year.

Would appreciate your thoughts.