CLIMATE CONTROL SYSTEM BROUGHAM

1991 Cadillac

Tiny

Carl Reynolds

February, 12, 2007 AT 11:31 AM

The fan runs at constant speed, will not turn off with car. Must un plug fan to make it stop running. Climate control system does not make any differience what it is set at. Ie Auto Hi Auto Low, Auto all the same. What could be the problem?

1 Answer

Tiny

Jack42

February, 12, 2007 AT 1:56 PM

Either the ECC (Electronic Climate Control Unit) or the Blower Control Unit. I would probably start with the Blower Control Unit, It is basically the old fan speed resistor

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