Car locks not working fuel display not reading

2002 CADILLAC DEVILLE
11,719 MILES • 0.8L • V8 • FWD • AUTOMATIC
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BAMM THOMAS CLEMENTS
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Battery light on, no power to doors, windows, seat's, remote trunk, fuel door, rear defroster and radio station, can you help?
Jan 15, 2017 at 9:31 AM
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HMAC300
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battery may be in poor condition. check battery including load test and make sure terminals are clean. most places do for free.
Jan 15, 2017 at 11:03 AM
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RENEE L
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Hi BAMM THOMAS CLEMENTS,

If you decide to check the condition of your battery yourself here is a link to helpful information from this site that features written instructions, pictures and a video explaining how to load test your battery yourself. If you need further assistance please come back to 2CarPros.com. We are always happy to help.

https://www.2carpros.com/articles/how-to-check-a-car-battery

Thank you for visiting 2CarPros.

Kindest regards,

Renee
Admin
Jan 16, 2017 at 2:36 PM
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BAMM THOMAS CLEMENTS
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Put a new battery in same thing and I have no mileage reading and fuel.
Jan 16, 2017 at 4:59 PM
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SATURNTECH9
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Is the battery light still on? Also, have you checked to make sure your alternator is charging?
Jan 16, 2017 at 7:22 PM
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BAMM THOMAS CLEMENTS
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I will check it today and get back with you. thanks.
Jan 17, 2017 at 9:12 AM
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SATURNTECH9
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You are welcome. let us know.
Jan 17, 2017 at 11:06 AM
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BAMM THOMAS CLEMENTS
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I checked alternator it is reading good.
Jan 22, 2017 at 8:30 AM
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SATURNTECH9
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Is the battery light still on with the car running? Also, what is the voltage reading with the car running at idle?
Jan 22, 2017 at 9:04 AM
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SATURNTECH9
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Also, have you checked all the fuses?
Jan 22, 2017 at 9:05 AM
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BAMM THOMAS CLEMENTS
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It was fourteen volts.
Jan 22, 2017 at 9:07 AM
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BAMM THOMAS CLEMENTS
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Yes and light is still on.
Jan 22, 2017 at 9:08 AM
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SATURNTECH9
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How about the battery light is that still on with it running? also, have you checked all the fuses yet?
Jan 22, 2017 at 9:20 AM
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BAMM THOMAS CLEMENTS
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Fuses are good.
Jan 22, 2017 at 9:24 AM
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SATURNTECH9
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Did this all start from a dead battery jump start etc? How you had it scanned with a professional photographer scan tool that can read all the computers in the car yet?
Jan 22, 2017 at 9:27 AM
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BAMM THOMAS CLEMENTS
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Scanner keeps reading error and yes from dead battery.
Jan 22, 2017 at 9:32 AM
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SATURNTECH9
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You just tried a diyer scan tool? Sounds a lot like a bad body control. I have seen them fail after a dead battery just start etc.
Jan 22, 2017 at 9:37 AM
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BAMM THOMAS CLEMENTS
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Next step.
Jan 22, 2017 at 10:24 AM
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HMAC300
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check the fusiblelink going to alternator as well for battery light problem but also have a mechanic scan for codes like Saturn tech 9 advised
Jan 22, 2017 at 12:58 PM
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BAMM THOMAS CLEMENTS
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OK get back with you thanks
Jan 22, 2017 at 2:35 PM
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BAMM THOMAS CLEMENTS
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Where's body control located
Jan 22, 2017 at 3:32 PM
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SATURNTECH9
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I am sorry there isn't a body control module on that car they just use a lot of different module to control different things.That is another reason I suggested having the car scanned with a professional scan tool to see what modules are able to communicate with and what modules have what codes. Also, which fuse boxes did you check the fuses in where were they located?
Jan 22, 2017 at 6:26 PM
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BAMM THOMAS CLEMENTS
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Where is the body control located?
Jan 23, 2017 at 9:20 AM
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BAMM THOMAS CLEMENTS
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Under back seat and under the hood?
Jan 23, 2017 at 9:23 AM
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SATURNTECH9
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Please read the above post above the last time you posted where is the BCM?
Jan 23, 2017 at 12:24 PM