It starts but no accessories work?

1987 MERCEDES BENZ 300E
158,000 MILES • 3.0L
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SFFINN1965
  • MEMBER
  • 2 POSTS
It starts fine, but it has no turn/flashers, wipers/washer, power seats or windows or sunroof, no gauges, no radio or locks, but it runs great? I replaced all fuses no better? I see no loose wires at the starter or anywhere. Please help?
Sep 2, 2024 at 10:38 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,554 POSTS
This sounds like you have an ignition switch that is bad. But to be sure here is a guide to help you test for power, remove the ignition switch and test the PK/RED, PK/GRN and PK/YL wires when the ignition switch is on, here are the wiring diagrams so you can see how the system works. Check out the images (below). Please let us know what happens.
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Sep 3, 2024 at 1:30 AM
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SFFINN1965
  • MEMBER
  • 2 POSTS
Thank you so much, ill check it out at first light.
Sep 3, 2024 at 2:59 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,554 POSTS
Sounds good, I am interested to see what you find.
Sep 4, 2024 at 3:12 AM
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