Ignition relay harness wiring diagram needed?

1989 MERCURY GRAND MARQUIS
37,000 MILES • 5.0L • V8 • 2WD • AUTOMATIC
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FTA826
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I recently purchased this car, and someone cut the ignition relay harness and all out and bypassed it. I have a new harness and relay, 5 pin, labeled 1-5. I need guidance on which wires go to which pin. I am having a hard time finding this on the internet. Any help would be appreciated.
May 6, 2023 at 9:57 PM
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STRAILER
  • ✓ASE Certified Mechanic
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Sure, here are the ignition switch wiring diagrams and I have included a guide to help you test the connections.

https://www.2carpros.com/articles/how-to-check-wiring

Check out the images (below). Please let us know if you need anything else to get the problem fixed.
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May 7, 2023 at 11:30 AM
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FTA826
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The problem is that i don’t know which specific wires go to which pins on the relay.
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May 7, 2023 at 2:33 PM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
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Yep, they don't show that only the color of the wires and then the relay only plugs in one way so you need to orenant the connector correctly to the replay before the wiring can begin. Thanks for the images and video it helps.
May 8, 2023 at 1:24 PM
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