Fuse box, half my fuse under hood have no power with key on or off?

2008 GMC ENVOY
120,000 MILES • 4.2L • V6 • 4WD • AUTOMATIC
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HAMMERTOTER
  • MEMBER
  • 1 POST
Jump started my truck with the vehicle listed above shut off. put new ECM in the vehicle, turns over but won't start. half my fuse under hood no power with key on or
off.
Feb 21, 2023 at 4:29 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Hi,

I attached a pic of the under-hood fuse box below. Take a look at it and let me know which fuses or which half doesn't get power.

I also looked at the power distribution schematics. I need to check fuses that have no power to determine if there is a fuse upstream from them or if the box itself has failed.

Let me know.

Joe

See pic below.
Image (Click to enlarge)
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Feb 22, 2023 at 11:43 AM
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