My head lights keep flashing on and off all other light no problem check the bulb they are ok

First check the fuse, must be battery voltage both sides, if ok check voltage both sides of stalk switch, if ok check voltage at head light relay, ( some relays may have a fuse ) if ok check voltage at head light bulb terminal. It is possible both bulbs are burnt out but not likely .

Check the front turn signal bulbs. This will affect the resistance in the circuit and cause the working light to flash at a much faster rate.

Bulb or socket may have an internal short. Try replacing the bulb.

this could be solved by taking the bulb out of its holder and cleaning the contact of the bulb and holder.
turn the ignition on after this with the bulbs in the holder and plugged in but not in the headlight kitself.Turn the lights on and see if the work if still the same try moving the bulb while on in its older and see if its just loose. if so holding it one way it will work. wedge something something to hold it in place or buy a used bulb holder.
Check the fuses at the same time and the wire plug that powers the bulb. check and clean the contacts of these also
Let me know how it goes and ill help again if it persists.
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If fuse and switch are all ok then try check the out put from the light plugs ( with a volt meter or another 12V light bulb), you might need new light bulbs.

check head light bulbs"high beam"if ok check loose connection on bulbs . last you can check day light running light unit

Hi I'm litoshop, if the lamp out flashed then you have a light bulb that burned out check all the bulbs head light, parking lights, brake lights and signal lights, tail light, plate lights must likely one of those bulbs burn out good luck. if this information has been useful please let us know thank you.

looks like electric problem ,there is a switch for the turbo whitch is keeping the air pumped in to the inlety manifold if that is broken and the turbo is ok this is what happens ,the light is bulb related problem is all your lights working ? brake ,direction,head etc ?

The green light on the dash flashes when the lights are off or if you have just the day time running lights on. If your lights are on the light should go out. or if a head lamp is out it may stay on

You have a bad ground at the right rear tail light assembly

Many times the ground is right there at the light. Follow the wire from the bulb base and see where it goes. Try tightening the fixture first

good luck