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1997 Cadillac Seville SLS
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11 Posts
Discussion Starter #1
Here's what I have: Installed brand new battery and new heat/AC blower motor. Woks great but the next day the blower motor motor won't turn on and it's giving ACM B1319 Sunload Sensor Short Circuit. I clear the code then start the car and the blower works fine again. Drove it for 30min and turned it off and when i got back in and started it up, no blower motor again. B1319 is Current Code again. I clear it and start it up and bingo, fan comes on and works fine. I did it a 3rd time just to make sure the first two instances were not purely coincidental.

So can anyone help me with what the heck the Sunload Senor short circuit is and why that fault prevents the blower motor to turn on?

thanks in advance for your help!
 

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Super Moderator
White Diamond '03 DHS (with DTS floor shift)
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86,785 Posts
Sounds like a bad sun load sensor. I'd just replace it.
 
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