Interior lights very dim after I sprayed out the engine bay

2002 PONTIAC GRAND PRIX
140,000 MILES • 3.8L • 6 CYL • 2WD • AUTOMATIC
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SETTERGRENH
  • MEMBER
  • 80 POSTS
My interior lights always worked, the other day I sprayed out the engine bay without covering anything. now my interior lights still work but they are really, really dim. what could I have done to the lights?
Aug 27, 2021 at 5:17 AM
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JACOBANDNICKOLAS
  • ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hi,

There really isn't anything under the hood that is for the interior light. If you look at the wiring schematic below, it shows only one fuse under the hood that powers the parking lamps and interior lamps. If you sprayed on the fuse box, check to make sure the fuse is still tight, dry, and free of corrosion.

Note: I had to cut the schematic in two so you could read it. I did overlap them so you can follow from one to the next.

Pic 3 shows the fuse location in the under hood fuse box.

When you are checking, confirm that the headlamps and parking lights are all working properly.

Here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Take care,

Joe

See pics below.
Aug 27, 2021 at 9:51 PM
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