Battery tests at 12.2 volts no power to any device-ignition, lights, radio, remote.
Jun 14, 2021 at 6:19 AM
Electrical system seems has no power
2003 CADILLAC DEVILLE
JEFFLISA
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Good morning,
The battery is very low. It is about 30%. 12.4 to 12.6 is what you need to make all the systems come online.
https://www.2carpros.com/articles/car-battery-load-test
I would charge the battery clean the cables and retest. Dirty battery cables will cause connection issues and will not allow voltage out of the battery.
https://www.2carpros.com/articles/how-to-charge-your-car-battery
https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked
I attached some guides for you below for this. Let us know the results and if you have any other questions.
Roy
The battery is very low. It is about 30%. 12.4 to 12.6 is what you need to make all the systems come online.
https://www.2carpros.com/articles/car-battery-load-test
I would charge the battery clean the cables and retest. Dirty battery cables will cause connection issues and will not allow voltage out of the battery.
https://www.2carpros.com/articles/how-to-charge-your-car-battery
https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked
I attached some guides for you below for this. Let us know the results and if you have any other questions.
Roy
Jun 14, 2021 at 9:26 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.