Door lock/unlock issue, only driver's door and tailgate work

Tiny
WILROB
  • MEMBER
  • 2005 TOYOTA 4RUNNER
  • V6
  • 4WD
  • AUTOMATIC
  • 136,000 MILES
The three passenger doors will not lock or unlock when using the key fob or the driver or front passenger door switches. The driver door and tailgate lock and unlock no problem. The other three doors have to be manually locked and unlocked.

I have replaced the fuse block assembly to the left of the steering wheel, did not fix it. The new fuse block assembly can with all new fuses. However, on the back of the fuse box assembly are four rectangle boxes, I am not sure what they are, relays? New ones of those did not come with the new fuse block assembly, so I put the ones from the old fuse block assembly into the new one. Do those need to be changed? What else could be the issue?
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Saturday, January 20th, 2018 AT 9:27 AM

4 Replies

Tiny
WILROB
  • MEMBER
The white boxes on the photo I uploaded are what I am talking about. The big black one also did not come with the new fuse block assembly, so I used the old one of that, too. Note: this is not my actual unit, I found this photo on eBay.
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Saturday, January 20th, 2018 AT 9:30 AM
Tiny
KEN L
  • ADMIN
Hello,

A handful of fuses run the system here are wiring diagrams to help you see which ones you need to check.

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

Check out the diagrams (Below)

Please let us know what happens.

Cheers, Ken
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Monday, January 22nd, 2018 AT 8:16 PM
Tiny
WILROB
  • MEMBER
Thank you - I will check into these. What about those white boxes and black box. What are those and could they come into play? Are they on the diagrams you shared?
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Monday, January 22nd, 2018 AT 8:24 PM
Tiny
KEN L
  • ADMIN
It looks like the BCM for the white box I'm not sure what the black box is can you take a picture of the place it is located in the car then I can tell you for sure
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Tuesday, January 23rd, 2018 AT 9:59 AM

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