Rear brake lights, speedometer and fuel gauge all stopped working

1998 MERCEDES BENZ C230
187 MILES
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1TBERRY
  • MEMBER
  • 1 POST
The gas meter, speedometer and back brake lights all went out. Checked the fuses but they are all good. Trying to find the next step.
Jun 20, 2018 at 1:46 PM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,199 POSTS
Hello,

This sounds like you lost one leg of the ignitions witch module but to confirm the issue here is a guide to help you test to see if you are losing power along with the wiring diagrams to help you see how it works:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Cheers, Ken
Jun 22, 2018 at 11:35 AM
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