Body control module location

Tiny
ADRIANANDRADE0526
  • MEMBER
  • 2006 TOYOTA SEQUOIA
  • 4.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 400,000 MILES
All interior accessories are not working, including window buttons, navigation system, sunroof, and chair adjustment buttons. Additionally OBD cannot be read annd the cigarette lighter accessory is not working. All fuses under the steering wheel, and fuses and relays under the hood have been checked and replaced as needed. The car turns on and is running, but accessories are not running. Looking to locate and check the BCM and test. Will replace if needed. Looking for support and step by step guidance to access and remove the BCM.
Saturday, August 23rd, 2025 AT 4:12 PM

4 Replies

Tiny
MECHTRIX
  • MECHANIC
  • 382 POSTS
Body ecu.B5 b6 b7 apparently theres 3 on the drivers side up under the dash.
Click the image below to get a good look at it hope this helps
good luck
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Sunday, August 24th, 2025 AT 7:23 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
I think there is one BCM but it has three electrical connectors. Good job finding that diagram MECHTRIX. I would check to make sure the ground is good, here is the wiring diagram which shows the ground location and the fuses that run the BCM which I would check for power when the key is on. This guide can help

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

Check out the images (below). Please let us know what happens.
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Monday, August 25th, 2025 AT 9:06 AM
Tiny
MECHTRIX
  • MECHANIC
  • 382 POSTS
Oops" meant 3 plugs on drivers side for the modual thanks for catching that ken.
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Monday, August 25th, 2025 AT 9:46 AM
Tiny
MECHTRIX
  • MECHANIC
  • 382 POSTS
Its important for when you're looking around in there becuase you might see other electronics while you looking around this one has 3 plugs going to it. Sorry about that hope this helps
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Monday, August 25th, 2025 AT 10:00 AM

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