2005 honda civic won't start, battery test ok , turn key dash lite go on and off flashing and I hear continuious clicking under the dash on the passenger side when key is turned to start. I t was running great, it just came out of the blue. Car has 200,000 kms on it but is in good shape up until now. Please help if you can ?? I was told by a friend it could be a starter but I am wondering by the other things, lites and clicking.

check and test battery-fuses-relays most likely dead battery

If the lights go out when you crank it...it's the battery.

Check the ground connection on the battery and the frame. Make.sure the battery posts are clean and free from corrosion. Most likely it's the ground on the frame

check your battery connections then charge the battery over night then check the charging system

The first thing to do is have the battery checked and the battery cables, repair any problems found like cable corrosion.

the clicking that you hear is coming from the starter relay. sounds like your ignition starter switch or ignition lock cylinder is bad.

If you turn the key and you don't even hear a click, first I would check to see if you move the shifter from park through the PRNDL and back (assuming it is an automatic). If that solves the problem, it is a bad or misaligned neutral safety switch (as far as I know, it is not common on Honda's, but it is a quick test). Then, I would check the ignition switch and the main relay. The starter could be the issue, but usually they still click when they go bad. I believe that that generation of Honda Civic had some issues with the ignition switch. I have been told that the main relays of the 92-95 had problems that may have carried over to a limited amount of the next generation.

battery voltage to low or bad connection at battery post

This sounds like a starter problem, does it click when you hit the key? are the battery cables ok, not corroded?

If the battery checked out ok, the next thing to check would be the starter. The battery cables have been removed and cleaned? Don't think an 05 would have a corrosion problem, but who knows, it's easy enough to check. I also am wondering about the battery. If it's original, it's about 4 years old, It's approaching the end of it's life, even w/ only 42k. good luck and let me know how u do. countrycurt0.