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Blower fan

Tiny
SHAWN C. LOCKLEAR
  • MEMBER
  • 2004 TOYOTA CELICA
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 89,000 MILES
I've checked the fan, the fan resistor and the relay, and still no power, but A/C light is not working either.
Wednesday, November 6th, 2019 AT 2:54 PM

4 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Okay. I suspect you have an issue with the switch. I attached the operation that includes the terminal info to test to see if you have power. If not, you can jump power past the switch and see if the fan kicks on. If it does then you know the rest of the system is in tact.

Let me know if you have questions and we can go from there.

Keep in mind this switch is what is called a ground side controlled. That means it is after the load of the motor and resistor so if the switch or its ground has failed then the circuit cannot be completed so it will not operate.
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Wednesday, November 6th, 2019 AT 4:59 PM
Tiny
SHAWN C. LOCKLEAR
  • MEMBER
  • 3 POSTS
Okay, thanks for the help. I have followed your instructions but I have grounds on all the wires, even on both sides to the blower(?)
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Thursday, November 7th, 2019 AT 9:49 AM
Tiny
SHAWN C. LOCKLEAR
  • MEMBER
  • 3 POSTS
Thanks for the help again, it was the actual control unit.
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Thursday, November 7th, 2019 AT 10:59 AM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Okay. Thanks for the information. I am sure that information will help others that may have this issue.
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Thursday, November 7th, 2019 AT 7:30 PM

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