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2002 deville
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4 Posts
Discussion Starter · #1 ·
My 02 Deville upper/lower vent actuator chatters for a couple minutes whenever starting vehicle, then settles on lower position . Changeing to upper or bi-level makes no difference. Where is this actuator and how do I access it? Getting error codes BO249 and BO429
 

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Super Moderator
2010 DTS
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88,458 Posts
B0249 - Heater/Defrost/AC Door Range Error
This is the code that is causing your problem. Sounds like the actuator is bad. I'd suggest you get a FSM by Helm Inc. before going after it (NOT Chiltons or Haynes). Ebay is your friend.

The other one is for the rear seat temp control actuator.
B0429 - Temperature Control #3 Rear Circuit Range/Performance

You can find the definitions here.
http://myweb.accessus.net/~090/dtcobd2.html
 
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