Wiring diagram for BCM (indicator lights)?

KATENT

MEMBER
2020 CHEVROLET SILVERADO
5.3L
4WD
AUTOMATIC
70,000 MILES

Hello, I want to ask where I could find diagrams for the truck listed above 1500. I want to make light conversion for eu spec, and I find it hard to localize front left and right indicators signals. Thanks in advance.

Wednesday, September 17th, 2025 AT 7:21 AM

2 Replies

KATENT

MEMBER
2 POSTS

If anyone finds anything I would be grateful, as for now I probed all big terminals from connectors and whole white connector (on the left), bud didn't find signals for breaking light nor reverse gear one. For blinkers I just routed them to the front, but still I need missing signals. For reverse I could just wire it up to back camera, breaking signal is still missing. If anything, knowing both signals would be best.

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Thursday, September 18th, 2025 AT 7:31 AM

KEN L

MASTER CERTIFIED MECHANIC
54,137 POSTS

Sure here is the wiring diagrams for the BCM to the light and blinker lights, you should know there is a logic module inside the tail light housings so adding extra lights might be tricky. Let me know if you need anything else. Check out the images (below). Let us know how it goes.

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