MY HEATER WONT TURN ON? IS THIS A FUSEWIRING ...

  • Tiny
  • Anonymous
  • 2003 Pontiac Montana
  • 216,500 miles

My heater wont turn on? Is this a fuse/wiring problem?

Friday, January 4th, 2013 AT 8:49 PM

2 Replies

  • Tiny
  • JDL
  • Expert
  • 16,289 posts

Are you saying the blower motor won't work? Check for voltage and ground at the blower motor wiring connector. Give me a second to find wiring diagram.

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Friday, January 4th, 2013 AT 9:16 PM
  • Tiny
  • JDL
  • Expert
  • 16,289 posts

In the diagram, terminal A is voltage for blower motor, terminal B is ground. If you have good voltage and ground with key on, hvac on, and no blower action, suspect the blower motor.

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Friday, January 4th, 2013 AT 9:24 PM

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