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Radiator fan not working?

Tiny
TIMOTHYFITZSIMMONS
  • MEMBER
  • 1991 TOYOTA COROLLA
  • 1.6L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 214,000 MILES
Radiator fans are not working, power to the front fan but not the rear fan. Disconnect the thermo switch and the fans do not work. Can hear the relay click when I disconnect and connect the switch. Fuse and wiring look good.
Friday, September 1st, 2023 AT 6:32 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,960 POSTS
Chances are the fan motor has gone out but to be sure let's see if the fan is getting power and ground. This guide can help, and I have included the fan wiring diagrams so you can see how the system works and which wires to test:

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

This guide may help as well:

https://www.2carpros.com/articles/comprehensive-guide-diagnosing-and-fixing-automotive-radiator-cooling-fans

Check out the images (below). Please let us know how it goes.
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Saturday, September 2nd, 2023 AT 4:50 PM

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