No power to the OBD port which fuse should I check?

Tiny
COOPER2025
  • MEMBER
  • 2008 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 220,000 MILES
No power to the OBD port, wonder which fuse number I should check first.
Thanks
Wednesday, May 14th, 2025 AT 10:58 AM

2 Replies

Tiny
AL514
  • MECHANIC
  • 5,499 POSTS
Hello, power for the DLC (pin 16) comes from the LTR Fuse 53 20amp in the under-hood fuse block. I'll post a wiring diagram of the circuit as well.
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Wednesday, May 14th, 2025 AT 1:22 PM
Tiny
AL514
  • MECHANIC
  • 5,499 POSTS
Here is the wiring diagrams for the Data link connector, notice power also goes to the I/P Accessory power outlet, so I would make sure nothing fell into the power outlet and shorted it out, blowing the fuse.
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Wednesday, May 14th, 2025 AT 1:32 PM

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