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Electrical problems

Tiny
TERESA BISHOP
  • MEMBER
  • 1997 FORD THUNDERBIRD
  • 4.6L
  • V8
  • RWD
  • AUTOMATIC
  • 275,000 MILES
Dash lights do not work. Climate control stopped working. Heater fan stuck on high even with climate control removed. Blinkers only work par time. No coolant fan. Ready to junk it. Replaced temp sensor, CCRM, integrated relay module. Fuses look okay. Checked fan by jumping with battery it is fine. Checked ground wires. Checked power supply.
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Friday, September 29th, 2017 AT 6:27 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,895 POSTS
It sounds like you have an ignition switch that is out.

Here is a wiring diagrams so you can do some testing for power at the red and light green wire while following this guide:

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

Let me know if you don't have power at the wire with the key on then I will send instruction on how to replace the switch.

Please let us know what you find.

Cheers, Ken

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Saturday, September 30th, 2017 AT 5:24 PM

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