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Electrical issues

Tiny
SESCALADE1
  • MEMBER
  • 2006 INFINITI M45
  • 4.5L
  • V8
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
The cooling fans won't come on. Also, recently the cluster gauges have stopped working. It lights up but that's it. When we remove the fan relay and straight wire it from one side to the other, everything works as normal. We have tried multiple new relays but that doesn't seem to be the problem. Please Help!
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Sunday, May 30th, 2021 AT 2:37 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

I attached the wiring diagram for you to view. The relay sends a signal to the module which turns on the fans.

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

You need to test for voltage at the relay and the module itself.

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

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Test for 2 powers to the relay with the key on. Both feeds come from the 2 fuses in the diagram. Make sure they are good.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Roy
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Sunday, May 30th, 2021 AT 3:13 PM

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