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DeVille Heat/Cool seat problem


HP480

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Hi, I've only had the car a few weeks ('05 DeVille), so I'm still in learning mode. But, this does not seem right:

Heated seats work fine in Lo, Med, Hi. BUT the seats cooling fans come on, same speed, no matter what the heat is set to.

Then, when trying the cooling mode, the fans come on and stay at one speed, no matter how many lighted bars are showing.

And this is the same for both front seats.

At a different forum, a member says his fans come on in Heat mode too. Is this normal?

Any Thoughts, suggestions, comments???

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What you are observing is normal-intended air circulation no matter what temperature or mode is selected. The blower motor operation is controlled by the Climate Contol Seat (CCS) module.

Jim

Drive your car.

Use your cell phone.

CHOOSE ONE !

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What you are observing is normal-intended air circulation no matter what temperature or mode is selected. The blower motor operation is controlled by the Climate Contol Seat (CCS) module.

Thanks for the quick response.

So fan on during heat is normal, but shouldn't there be 3 fans speeds during cooling mode?

"Then, when trying the cooling mode, the fans come on and stay at one speed, no matter how many lighted bars are showing."

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Actually there would be an infinite number of blower motor speeds and the CCS module determines how fast the motor spins.

There is no relationship between the door switches and blower motor speed.

Jim

Drive your car.

Use your cell phone.

CHOOSE ONE !

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