electrical on 1990 Cadillac DeVille

when i turn my car off and open my door sometimes my radio or my ac will turn on by them self sometimes draining battery

by in Staten Island, NY on March 24, 2009
1 answer
ANSWER by on March 25, 2009
The radio should turn off when you open the door. If it stays on there could be a faulty input to the Body Control Module, a sticking relay, or a faulty BCM. About the A/C, is the blower motor staying on? If so the cause is most likely the blower motor control module.
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