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Dashboard, radio, etc. turn on when turning key everything dies

Motor Vehicle Maintenance & Repair Asked by carproblemsford on May 22, 2021

I have a 2006 Ford Focus and I recently replaced the battery.

Everything comes on dashboard, lights, radio, etc. Then when I turn the key to ignition the lights kind of flicker and then nothing! Everything goes dead, I tried turning the key again after that happens and nothing all dead. After waiting a few minutes power returns or I have to disconnect and reconnect the battery to get power back. But I still have the same issue power back on, turn the key, all goes dead.

I tried jumping the car no luck nothing happens car will not start also replaced ignition relay thinking that was the problem. Nothing. Maybe the starter solenoid? a fuse? battery cables? ignition switch?

3 Answers

First think we can rule out is the battery-it's new. I'm thinking it is the ignition switch. The ignition switch feeds power to all the relays controlling the instrument cluster,starter relay etc. The ignition switch has been used continuously for 10 years eventually contacts will wear out and develop problems.

Answered by Old_Fossil on May 22, 2021

This sounds to me like the battery isn't solidly connected. Since trying to jump the car didn't work, I think the problem isn't with the connection between the battery cables and the battery.

Given that, the most likely place to start looking is where the battery cables attach to the car. Follow the cables and check the condition of the "other" end of the cables, if I'm right, one will be loose or corroded. It is possible that in the process of changing the battery the cables got dislodged or broke due to corrosion.

Answered by dlu on May 22, 2021

Interestingly, I faced same issue. When in onnposition, everything lights up. When in ignition position everythingbgoes dead. But...when I wiggle the batter's negetive terminal, and try it, everything works fine. I think, it's the terminal issue. Not the battery.

Answered by Nahid Ahmed on May 22, 2021

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