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ECC Climate Control wierdness V70-XC70 1999

posted by  dswilkins on  Tue May 31 12:27 CST 2005
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I noticed an electical smell in my XC about two weeks ago...today when I went to turn on the A/C, the fan came on for about 3 seconds, and then the "Recirc On" and "A/C Off" button lights started flashing and the whole ECC shut down.

I've checked fuses - which don't seem to make sense anyways since the motor does momentarily run after ignition shut down - and am asking for input beyond that....

Thanks,

Dave








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    ECC Climate Control wierdness V70-XC70 1999

    posted by  someone claiming to be tgrumaj on  Tue May 31 14:37 CST 2005 [RELATED]

    The first surge of power is intentional...the system is designed to send a short burst of power to the fan and then based on electronic feedback it either is fine or shuts down followed by the flashing of the two lights for about 10-12 seconds to show that a fault was found. Have the dealer read the codes but my guess is that your blower motor is fried....maybe the resistor is an issue as well. Worse case, both combined would run about 600 at a dealer to have replaced. The codes stored in the OBDII will tell the tale. The blower motor probem is not uncommon on this vintage XC.







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