Lt front turn signal wasnt lit up (the one by the headlight), blinkers on that side blinking faster than normal, bulb looked good but I replaced anyway, still not working. Now I noticed that headlamp not working? What do you suggest? Grady

check the ground wires to the rear lights sometimes the head lights will provide backfeed ground when off but cannot when on this would explain the rapid flash

because of no light flasher on left side the front one will go faster .maybe the left rear light is burn. and brake lights are control by the brake switch on brake pedal hardware, might be unadjust

Plain and simple...Your turn signal circuit is shorted to your headlamp circuit. What USUALLY causes this is an incorrect light bulb has been installed in the vehicle or the light bulb was installed incorrectly. There are other possible causes of these circuits being shorted together, but 99 out of 100 of the times that I have seen this it is either because somebody just replaced a bulb or a bulb socket melted somwhere on the car. Be sure to check both the front AND rear bulbs.

mporteous, It sounds like you have a light switch problem. I can't think of any other reason for the running lights and tail lights not working in this situation. Are your brake lights working when the headlights are off and how about when they are on? Do your four ways hazard lights work in these situations? Try all the lights under these conditions. The reason the left turn signal blinks very fast is because one of the bulbs are burned out. Try the left signal and one light (front or back) will stay on and the other will not come on at all. Replace the bulb that does nothing. Do this before you try all the lights in different situations. I think that you will have to replace the light switch. Good luck with this.

Normally with the blinker blinking really fast, it's telling you that one of the bulb is blown, front or rear signals. Check your fuse, and fuse relay to see if it would fix the promblem

replace the rear brake turn signal bulb first. usually the problem

Many turn signal lamps will have multiple bulbs in them. If "one" of the bulbs is faulty, the interior lamp or lamps will come on, indicating a bad bulb. You will need to turn on your left blinker and view the bulb and make sure all bulbs appear to be blinking on front and rear of the car, then repeat with the right blinker. If you find one that doesn't appear to look right or blinks faster slower or dimmer, then replace the bulbs in that turn signal. The interior light may begin working properly when you replace the "shorted" bulb for the turn signals. If it does not, check the fuses to make sure the "shorted" bulb didn't damage your fuse for the interior lights.

make sure our lights at rear are grounded sounds like a bad earth

Usually a fast turn signal means that there is a light out. You should probably check all of your lights, including back-up lights, and turn signals. If there is one out then replacing the burnt out bulb should fix the problem.

probably need headlight bulb too, check fuses first.