@lillyautomotive Hi there, my car driver side high beam sometimes works and sometimes doesn't. It may work after a few tries, my car failed the test because of this, I changed the bulb and still the same. The low beam is working fine. what do you recommend about this?? Do you have any idea please?
I would look at the ballast, make sure there's no water in it & swap ballast from the other side and see if the light works. If there's water in the ballast you can submerge it and wash it in IPA (iso-propel alcohol 91%) if you have it available and let the unit dry (for a few hours at least) and see if it functions. Otherwise might be a wiring issue
@lillyautomotive I checked the ballast, the motor, the flapper, and the wires. Everything is good. The high beam is still not working properly, I'm so confused. what else do you think? Does FRM coding have anything to do with that?
Ah ok I misread your post in the beginning. It seems as though the solenoid that activates to move the shield is not working. I would check to see if you hear it clicking (if it is) then check the linkages, if it's not then check the wiring. You may want to get a pin out / wiring diagram and make sure the high beam signal is getting to the headlight. If it is then you'll probably want to bake the headlight apart and check all the wiring inside of it
Does this mean that there are no dedicated light bulbs for the high beams?
Correct, one xenon bulb for low & high beam (aka bi-xenon), with a shutter that moves to block or allow light through to the lense / road.
@lillyautomotive
Hi there, my car driver side high beam sometimes works and sometimes doesn't.
It may work after a few tries, my car failed the test because of this, I changed the bulb and still the same.
The low beam is working fine.
what do you recommend about this?? Do you have any idea please?
I would look at the ballast, make sure there's no water in it & swap ballast from the other side and see if the light works.
If there's water in the ballast you can submerge it and wash it in IPA (iso-propel alcohol 91%) if you have it available and let the unit dry (for a few hours at least) and see if it functions.
Otherwise might be a wiring issue
@lillyautomotive I checked the ballast, the motor, the flapper, and the wires. Everything is good.
The high beam is still not working properly, I'm so confused.
what else do you think?
Does FRM coding have anything to do with that?
Ah ok I misread your post in the beginning. It seems as though the solenoid that activates to move the shield is not working. I would check to see if you hear it clicking (if it is) then check the linkages, if it's not then check the wiring. You may want to get a pin out / wiring diagram and make sure the high beam signal is getting to the headlight. If it is then you'll probably want to bake the headlight apart and check all the wiring inside of it