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2000 deville
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10 Posts
Discussion Starter #1
My 04 DHS acts funny some times. The over head front middle lights don't work with the twist control but I push the button by the light it works. Then I'll ask try the twist again and it works.... My blower won't come on sometimes. I hit under the glove box where it is it starts to work. Sometimes blowing slightly harder or softer sometimes fluctuating randomly. Sometimes when I get in the driver memory has switched......Could this be the ECU???
 

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2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
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26,323 Posts
The PCM (no ECU in these cars) has nothing to do with lights or HVAC.

Not sure what's going on with he lighting, but those are classic signs of a failing blower motor. TYC makes replacements.
 
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