Drained battery


Asked by Feb 18, 2017 at 03:44 PM about the 2000 Cadillac DeVille Sedan FWD

Question type: Maintenance & Repair

Cars battery drains overnight. Jumped it today it started. Then I cleared all the
codes on the car. Service engine went off. Does it take time for the computer to

1 Answer


The check engine light will come back on if the faults we're not fixed. Scan for the codes and fix the issues. You can post the 4 digit codes back here and we can help you get the car repaired. Your battery drain could be just a weak battery. How old is it? Voltage? If those check out, then you have to search for your drain. Search youtube for 'parasitic draw' and you will find some videos helping you to find what circuit is causing the problem.

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