On demand lights not working but fuse is good

Tiny
KENT THORNELL
  • MEMBER
  • 2015 FORD MUSTANG
  • 3.7L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 42,200 MILES
The map, vanity. Glove box and trunk lights do not work but the fuse (# 1 10 amp) is good. The map lights do turn on when the door is opened but cannot be turned on when door is closed. All interior fuses located in passenger foot well are intact. Is there another fuse that I should check or something else?
Saturday, February 2nd, 2019 AT 9:10 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Good morning,

All those functions are controlled by the body control module. The module looks for inputs from the door switches and headlight switch. Once those inputs are found, it will turn on those lights.

You need an advanced scan tool to monitor the module, check for codes set and see if it is getting the proper signals that it needs to do its job.

It is located in the trunk area behind the right side panel by the quarter panel.

Roy
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Sunday, February 3rd, 2019 AT 2:27 AM
Tiny
KENT THORNELL
  • MEMBER
  • 12 POSTS
Thank you very much Roy. I will follow up and post what I find. Kent
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Sunday, February 3rd, 2019 AT 11:45 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
You are welcome.

Always glad to help.

Roy
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Sunday, February 3rd, 2019 AT 1:44 PM

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