car radio not working after battery replacement

It could be a fried ECM or a failed diode from the wrong power direction flow. Once you have the code switch your ignition to the ON position and punch the radio power button.

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Contact the original dealer who sold the car as they may have the code stored in their computer system.

. Joined May 27 2012. Attach multimeter to each side of the batter disconnect set to lowest amp setting and turn disconnect should be somewhere between 1 amp and 050 amp below 050 amp is the goal. You have to press the on button to turn it on again.

Check each individual fuse in the Jeep just to be sure - one fusebox behind the glovebox and one under the hood in front of the battery. Look long and hard for the code as it may be written somewhere in the owners manual. First does the radio power on at all or is there nothing on when you turn the key on.

You might find a small tag somewhere in the bottom of your glove box with the reset code on it. Radio its not working after battery change. So now you need to reprogram the radio and you dont want to break your b.

Trouble code U0184 after jump start or new battery installation. You can also try honking your horn. The fuse box you need to check is located on the passenger side of the vehicle.

That alarm scared the crap out of me. I also tried to reset the radio by removing the fuse so that I had to reinsert the code. Took the battery out and replaced it.

Normally they charge for this but in your case since they changed the battery they should do this for free. You will have first to locate the radio code on your owners booklet or visit your manufacturers website to retrieve the radio code. If it displays CODE on the screen how to reset a car radio without code.

Try disconnecting the battery. The most common reason for a car radio to stop working after the battery has gone completely dead is that the radio has an anti-theft feature that kicks in whenever battery power is. If these power wires are reversed.

Radio could be blown internally. Each window has to be reset. Suppose your car radio requests a code after changing your battery.

Only show this user. No lights showing on the display. Radio its not working after battery change.

If the radio doesnt work after a jump start or a battery cable disconnectreconnect and you find a U0184 trouble code it means the digital data bus has lost communication with the radio. Most electronic devices in todays tech world shut off when power is lost and stay off even when power is restored. Go to the fuse box and pull one fuse at a time watching each time for the reading to drop if labeled skip and modules till last.

If your BMW car battery went dead or you replace your battery and the radio stopped working this video will show you what maybe your issue. Let us know what you find with this and we can go from there. Normally they charge for this but in your case since they changed the battery they.

If the radio doesnt. Went about 1 mile and the electronics started flickering and the car shut off had it jumped off. Now turn the radio off using the power button but do not let go.

There are multiple fuses that will affect the power to the radio. Went about 3 miles and same thing. If the fuse is okay and the radio has power and ground then I suspect the radio is the issue.

Lights will work with current flow in either direction. Try disconnecting negative terminal on battery make sure key is removed from ignition then pump your brake pedal 10-15 times to drain any residual juice in the system. Wouldnt start after work Monday had it jumped off.

You did it the wrong way. Yes there is a code that is required to unlock the radio. Took the battery out and replaced it.

After changing your car battery the radio will not work. The spark that occurs when a new battery is installed can cause a power surge that affects battery powered items like radio ecu and bcm. Most car radios have two power wires one that is always hot which provides power to the memory and one that is only hot when you turn on the ignition key.

Please do not send it off for repair at a ridiculous cost. There may be a logic lock of the music radio requiring the battery to be disconnected overnight to clear. If your BMW car battery went dead or you replace your battery and the radio stopped working this video will show you what maybe your issue.

After changing car battery radio wont work. If nothing happens then we need to check fuse F72 and make sure it is not blown. 10 Oct 26 2012.

BustedKnuckles November 30 2011 639am 6. I own a 2007 Accord 4 cyl. Once you determine that your car radio isnt working after battery replacement because of a blown fuse you can fix this by replacing your fuse.

The old battery was disconnected then a new battery was connected while the radio was turned on. Something there just doesnt make sense. FMAM radio and CD player work fine but the XM radio does not work.

This function is designed to prevent theft of the radio. Reconnect negative terminal and see if it works now. The code would be on a small card that came with the vehicle.

Starter solenoids need a direction to move in on starting so it will not work with the wrong direction of power. Ex-L Coupe and I just replaced the battery. The fuse may have blown for some reason.

Check for Power at the Head Unit. The radio may have been damaged by the electrical spike or may be locked up. Should work normal after that 2.

Since the radio still turns on but there is no sound there is a chance the system has a separate amplifier for the radio. The alarm does work. I click on the CDAUXXM button to switch to the SAT program but nothing happens and it stays on the CD program.

The first thing. If the fuses are good and the connections are good then the next step is to check for power at the radio itself. If its the OEM radio the dealership should be able to look up the reset code based on the VIN.

Now the radio doesnt work.

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