Right turn signal not working?

2014 CHEVROLET SUBURBAN

114,000 MILES • 5.4L • V8 • 4WD • AUTOMATIC

FAN4RN12

MEMBER
1 POST
FOLLOW

The right blinker has stopped working. It was intermittent but now has completely stopped. I have checked all the fuses I could find and changed the blinker assembly on the column to no avail. Also, curiously the right side of the hazard lights still work and are the same bulb/filament.

Thanks

Oct 17, 2022 at 9:43 AM

STRAILER

CERTIFIED EXPERT
53,854 POSTS

The right turn signal is controlled by the BCM, so it sounds like it is not working. here are the blinker wiring diagrams so you can see how the system works and the location and instructions on how to change the BCM out. You can get a rebuilt BCM by searching Google or eBay, just have your VIN number ready. To confirm this is the problem you can do a CAN SCAN which is easy to do. You can get a CAN scanner (Controller Area Network) from Amazon for about $36.00.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

and

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Amazon CAN scanner link for about $35.00.

https://amzn.to/3R9lJ60

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem.

Images (Click to enlarge)

Oct 17, 2022 at 10:53 AM