Hi,
If this happens when the vehicle is running, chances are it is related to the alarm module. What I would suggest is having the can bus scanned. CAN stands for controller area network. Basically, the computers/modules in the vehicle are tied together via a few wires. Here is a link that explains it and how it's done. If there is a fault in the system, this should retrieve diagnostic codes specific to the issue.
https://www.2carpros.com/articles/can-scan-controller-area-network-easy
The module itself can also be tested. I attached the directions below. It is much more involved. Take a look through them and let me know if this is something you are comfortable doing. It is quite extensive.
Here is a link that you may find helpful if you decide to test the module:
https://www.2carpros.com/articles/how-to-check-wiring
Take care and let me know what I can do to help.
Joe
See pics below.
Images (Click to make bigger)
SPONSORED LINKS
Thursday, February 17th, 2022 AT 4:22 PM