No heat

Tiny
STANLEYWIERS
  • MEMBER
  • 2003 BUICK RENDEZVOUS
I have a 2003 Buick Rendezvous, The heater fans worked all day yesturday. After work I went to start my vehicle and the blower fans no longer worked. I checked the fuses and none were bad. What could this mean?
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Thursday, January 13th, 2011 AT 2:03 PM

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Tiny
JDL
  • EXPERT
I'd want to get at the blower motor connector, take it loose. Key on, hvac on, use a voltmeter on the wiring harness connector, anything? Red wire is voltage, black is ground. If you have good voltage and ground with no blower action, suspect the blower motor. There is a hvac ignition fuse, goes hot with key on. Check for voltage on that circuit, even if the fuse is good, if there is no voltage the circuit is dead.
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Thursday, January 13th, 2011 AT 8:09 PM

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