Turn signals work but do not make sound when turned on

You won't find it because........there isn't one. The BCM (body control module) controls the flash. If you have no sound it could be a defective speaker.

check your relay for flasher

there should be a fuse for the direction light. and a direction switch can be bad and still click and operate as it suppose to

Replace the turn signal switch. Bad contact inside causing a crossing of the circuits. When the turn signal is applied it should open the brake light circuit allowing for just the signal to work. Doesn't sound like the switch is doing it's job.

Sounds like the turn signal flasher is going bad. The easy way to find wher the flasher is hidden is turn the turn signal on and find the clicking, that is the flasher. The emergency flashers work fine because they use a different flasher.

Sounds like you have another relay that is not happy. need to locate the where the sound is coming from. sorry thats a new one for that truck!

The only thing that should not be working would be the audible turn signal / hazard signal sound. When the turn signals are activated, the audio (radio) system generates a clicking sound that indicates the signals are working.
When the radio is missing, no sound is generated.
Are your turn signals working outside, but no sound or are the signals not working at all.
Let me know.
Regards,

sounds like you have a bad turn signal switch

That sound usually comes from the flasher unit. Even though the flasher is doing it's job if you want sound change the flasher

replaced turn signal flashers and muti switch turn signal still won't work Why?