BCM self test

Caleb Technician Mishawaka, Indiana Posted   Edited  
Resource
Electrical
2019 Chevrolet Trax LS 1.4L (B LUV) 6-spd (6T40)
B1529

Here is a known good capture of BCM self testing the 12 volt ref to the steering wheel audio and cruise control switchs after I unplugged the shorted cruise control switch. Within 1 minute the voltage returned to 12v because I had removed the short. I did not have to clear the code for the BCM to initiate this test. Sorry for the crappy capture but I believe you get the point. diag​.​net/file/f5164rlyp…

diag​.​net/file/f5mq7mko8…

0