Cooling fan not functioning, wiring diagram for the cooling system needed?

Tiny
BLESSING EWOBOR
  • MEMBER
  • 2001 TOYOTA SIENNA
  • V6
  • 2WD
  • AUTOMATIC
  • 234,356 MILES
The cooling fan of the engine is not functioning. Could I have the wire diagram for the cooling system?
Thursday, February 27th, 2025 AT 7:28 PM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

Before tearing into the circuit, run power directly to the fans to make sure they are functional. If they are, keep in mind there are three relays. I just took a look and from what I'm seeing, fan relay 1, located in under the hood in the engine compartment, must work for the other two to get power. I would start there.

I attached the wiring schematic below for you. I had to cut the pic in two to make it readable. I did overlap the two so you can follow from one to the next.

I hope this helps. Let me know if you have questions.

Take care,

joe

See pics below.
Images (Click to make bigger)
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Friday, February 28th, 2025 AT 8:39 PM
Tiny
BLESSING EWOBOR
  • MEMBER
  • 754 POSTS
Thank you very much.
Was this
answer
helpful?
Yes
No
Saturday, March 1st, 2025 AT 8:48 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,272 POSTS
JACOBANDNICKOLAS is one of our best, let us know if you need anything else.
Was this
answer
helpful?
Yes
No
Monday, March 3rd, 2025 AT 10:27 AM
Tiny
BLESSING EWOBOR
  • MEMBER
  • 754 POSTS
Thank you.
Was this
answer
helpful?
Yes
No
Tuesday, March 4th, 2025 AT 11:04 AM

Please login or register to post a reply.

Related Cooling Fan Wiring Content

VIEW MORE