Brake lights not working, left turn signal not working and buzzing

Hi,

My first question is where is the buzzing coming from? If it is coming from the steering column, I suspect it is the switch.

I attached the wiring schematic below. Note that in pic 2, I placed an X through a section of wiring. That wiring goes to the trailer wiring schematic.

Now, if you notice in pic 1, there are two fuses that provide power to the signals flasher. I don't feel at this time that is the issue because the right side works. However, if you look to the right, you will see the brake light switch. Note that it provides power to two locations on the multifunction switch (signal switch). In the switch, power from the brake light switch is distributed to the left and right lights in the rear via two separate wires/circuits in the switch.

I have a feeling that the connections for the left light which is built into the switch, has failed. You can check for power out to the light green wire at the switch when the signal and brakes are turned on. That will confirm if the switch is bad.

If you want to check for power, here is a link that you may find helpful:

https://www.2carpros.com/articles/how-to-check-wiring

Let me know if there is anything you can think of that you want to ask. Also, let me know if this helps. I'll help you through it.

Take care,

Joe

See pics below.

Did this all start when you replaced the multi-function switch or headlamp switch? By all, I am referring to the new symptoms.

We have to be losing power at some point.

When you checked the fuses, did you also confirm there is power to them?

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Joe

Hi,

Here is the link again for testing a fuse. It explains what to do. You could have a good fuse and no power to it.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

As far as the fuses, I attached the info below for you. First is the underhood fuse/battery box and the second section is the central junction box in the vehicle.

I attached three pics for both. One pic shows the location, one shows the layout and numbers of each fuse, and then the legend (what each fuse is for). I highlighted the fuses to check and highlighted what they are for on the legend.

Let me know if that helps and what you find. Also, please feel free to ask questions if you have them. If I can help, I will.

Take care,

Joe

See pics below.

Hi,

The voltage draw on an LED is much lower than a traditional incandescent bulb. I didn't know about the LED's. I suspect you will need to replace the flasher with one designed for the LED lights.

Have you already done that?

Joe

Hi,

Absolutely no problem whatsoever. Have you checked fuse 15 yet? That powers the instrument panel lights.

I attached the wiring schematic below for the IC. Take a look through them and let me know if that fuse is good. Also, make sure to confirm power to the fuse.

Take care,

Joe