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2003 Saturn L300 Defrost Only?

Tiny
HALE777
  • MEMBER
  • 2003 SATURN L300
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 145,000 MILES
Good Morning - i'm looking for some help/advice on my A/C. On another topic, my check engine light has been on for a while, but nothing is wrong, so I google'd how to turn it off and was told to disconnect the battery for 15 minutes, reconnect, let the engine run for 15 minutes and reset everything. All went well, check engine light went off, but. Now the A/C will not switch between the regular vents, floor vents, and defrost vents -- it stays only on the defrost vents. Nice, very cold air, but blowing through the defrost and into my face. Not bat for the summer heat, but will cause a problem later on. Please help. Is there possibly a fuse that burnt out when I reconnected the battery? If so, where are the fuses? Please advise.
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Thursday, September 16th, 2010 AT 9:12 AM

3 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
The mode selection is done through an electric actuator/motor that moves air doors. When you remove the battery connection, you clear all the calibration and memory in the system. When it powers back up, many of them go through a calibration where it swings the doors the full length of their travel to calibrate them and many times they get stuck/jammed in one position. You may have to remove the whole dash to resolve it if it doesn't free up on it's own.
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Thursday, September 16th, 2010 AT 9:54 AM
Tiny
HALE777
  • MEMBER
  • 2 POSTS
Thanks for the response - although not as easy as I had hoped for. Guess I'll have to figure out how to get the dash off now. HA.
Thanks - Chris H.
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Thursday, September 16th, 2010 AT 9:57 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
There's a Saturn dealer tech here that may have some ideas for you. He should see this soon.
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Thursday, September 16th, 2010 AT 9:59 AM

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