Hi,
This vehicle doesn't have a traditional flasher unit for the signals. Instead, the body control module (BCM) controls the vehicle turn signals based on inputs from the turn signal/multifunction switch. With the turn signal/multifunction switch in either the left or right turn position, a ground is applied through the turn signal switch signal circuit to the BCM indicating a turn signal request. When the specific request is seen, the BCM then applies a pulsating voltage through the front and rear turn signal supply voltage circuits illuminating the turn signal lamps.
Have you checked fuses? Each side has a separate fuse for the signals. Fuses 7 and 11 in the vehicle fuse box (below radio) need to be checked if you haven't. (See pic 1 below) In addition to checking the fuses, confirm there is power to and from them. The ignition key will need to be on when checking for power.
Here is a link you may find helpful:
https://www.2carpros.com/articles/how-to-check-a-car-fuse
Start there and let me know what you find.
Take care,
Joe
See pics below. Pic 2 shows the fuse locations.
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Tuesday, September 6th, 2022 AT 7:05 PM