Signal lights not working

What does the rear turn signal do? If one of the signal lights are not working, the other will blink faster. With the headlights off the turn signal bulbs ground through the light holder. With the headlights on the running lights are using the same ground circuit. Make sure all bulbs are good with a good ground.

Get the left signal to flash fast then walk around the car to see which light isn't flashing then change the bulb or socket if they all appear to be flashing (front and rear) turn on the right turn signal then look into the front and rear lens and count the number of bulbs flashing, now do the same thing on the left. Many times there's more than 1 bulb in each lamp. I hope this helps. Take care.

One of your bulbs is out. Turn your flashers on and walk around your vehicle to see witch one it is and replace it.

check the elements in the light bulbs sometimes they short together

the signal indicator lights are suppose to flash in perticular time interval which is connected to a timer relay when the light flashes faster that means the other light is not working and the relay is getting double the current and moving faster so check the other light either the bulb is fuse or the current is not reaching up to the bulb

turn signal flasher. check your user manual for location and style

The fast signal flashing indicates that you have a burned bulb (or one of the bulb elements is burned).
Based on your saying it's the front one on the side your flasher control is set when the signal light flash faster

By a new bulb light and replace the faulty one
hope it will help

Sounds like you need to replace the drivers brake/tail light.

first check all the turn signal lights the fast flashing when one of the bulbs is out if all of them work it might be your turn signal relay

You need a turn signal flasher.