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Re: 97 Cadillac Deville P1660 coolant fans
Posted to Technical Discussion Forum on 4/20/2007

Which relay did you jump? Do you have voltage to the orange wire on all 3 relays with the key on? It appears to me that the PCM pulls pin 33 on connector C2 to ground and runs both fans at high speed, they are in parallel at that point. When the PCM pulls pin ... Login to read more.