Interior lights are not working

2002 CADILLAC DEVILLE
78,000 MILES • 4.9L • V8 • FWD • AUTOMATIC
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MARK JOSEPH BARTOK
  • MEMBER
  • 1 POST
When I open the doors I have no interior lights. All fuses and relays are good. The map lights come on manually but nothing when I open the doors. Any ideas?
Jan 1, 2017 at 12:56 PM
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STEVE W.
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 15,146 POSTS
Check the position of the dimmer control for the dash lights. Many have positions that will turn off interior lights. If it is okay and you still have no interior lamps you would need to have the Rear Integrated Module tested or replaced.
Jan 1, 2017 at 5:18 PM
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ITSAWRAP
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1996 Cadillac DeVille .When I open the doors I have no interior lights , cig. lighter and cruise control stopped operating . Can't find the locations for the fuses and relays. Any ideas?
Aug 6, 2019 at 9:09 AM
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STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
Hello,

There is an INT LP relay that needs to be checked here is a guide to help with the wiring diagrams so you can see how the system works and the relay location as well below.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.
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Aug 6, 2019 at 11:16 AM