Service electrical system

2001 CADILLAC DEVILLE
55,700 MILES
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ANTONIO HOLMES
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The dashboard warning says service electrical system. What does that mean? Also, the battery was just replaced and the turning signal does not work (I think it is a fuse). The hazard light do work. Also the airbag light is on. I was told by the previous owner that none of that was wrong before the battery change.
Mar 9, 2019 at 5:51 AM
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KASEKENNY
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If they changed the battery and all this happened, then we need to start with the battery.

Let's test the battery and just make sure this is okay.

https://www.2carpros.com/articles/car-battery-load-test

If the battery tests okay, then we need to check the codes that are going on with the lights.

https://youtu.be/gnSGfEqrf_w

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Unfortunately, there are many things that can cause these issues but not normally one thing that would cause all these lights. There very well could be one thing but until we know what codes are there, we are not going to be able to determine that.

So, let's start with this info and then we can go from there.

Thanks
May 23, 2022 at 7:16 PM