Radio flashes after locking it

2005 CHEVROLET EQUINOX
150,000 MILES • 3.4L • 6 CYL • 2WD • AUTOMATIC
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DV82949
  • MEMBER
  • 2 POSTS
After locking my vehicle the screen on the radio blinks on and off and it's causing the battery to drain.
Feb 17, 2019 at 5:03 AM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,189 POSTS
Hello,

It sounds like the VCM (vehicle communication module) has gone out. but to be sure lets scan the CAN. here is a video so you can see how its done:

https://youtu.be/InIlnsjOVFA

Here is the module location, I would try unplugging it and then plugging it back in this can sometimes fix a bad connection. Please run down this guide and report back.
Feb 18, 2019 at 12:12 PM
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