License Plate Light Bulbs wiring diagram needed?

1992 GMC SIERRA
300,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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RODJAMES
  • MEMBER
  • 25 POSTS
The wire to my license plate light bulbs is broken. It looks like someone tried to splice them using butt connectors but know I can’t tell what they connect to.
Jun 16, 2024 at 5:59 PM
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TY ANDERSON
  • ✓Experienced Mechanic
  • 719 POSTS
Looking at the wiring diagrams there is a black wire and brown wire to all the options for the rear license plate light. See the wiring diagram attached. Ensure you are getting power and ground (exterior light switched on) with a test light when repairing your license plate wiring.
Good luck and let us know the outcome of what you find.
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Jun 17, 2024 at 1:26 AM
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