Disabling the AHC and AVS systems, no warning lights. (20 Viewers)
- Thread starter turbo8
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I changed the range of motion in my ahc by changing ahc connection rod length. Now the truck sits at where H was stock....and can go up and down from there.... next ill be wiring a ahc kill switch to the dash so I can lock in H or L and go over 20mph
Nice! Where dis you get those tie rods? Are those the Icon UCAs?
Rides like it did stock. Which I'm pretty amazed considering
Coach builders tundra tierods
Camburg engineering uca lca
Coach builders tundra tierods
PA.
There 6 inches longer...custom made by hose and tube of Loveland.....what i need is time to get my diff drop installed!!!
Sorry I meant the tie rods for the ahc links! Look really cool would like to get a set
Pegasus racing. They were very helpful throughout the build. Several overnight orders when hiccups arise!!!
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Would Tundra shocks amd coils drop into the LX570 without issue, or are the LCA UCAs needed as well to fit stock Tundra shocks and coils?
turbo8
Supporting Vendor
- Thread starter
- #252
Depends on the shock manufacture. The Tundra spec'd kings I have in mine required modification to the coil bucket.
Stock Tundra front shocks should bolt into place. You would need to cycle the suspension without the coil spring attached to make sure nothing creates issues. (shock bottoms out before hitting bump stops, shock allows too much droop and cv binds\pops out, etc.
Thanks for the update! I have a 2008 so seems like I should be in the clear
I bought the LX with 180k miles. AHC has been okay so far after changing the fluid, however, I’m noticing ride height will slowly lower after being parked and the height is lowering when it shouldn’t when on fairly level ground. Off road, I’m also not a big fan of the lack of articulation AHC provides. I also like the “simplicity” of a traditional suspension set up
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2008 LX570
I replaced my hydraulic shocks and stock coils with Old Man Emu a few weeks ago and had been waiting to disconnect the suspension control module behind the rear driver's side plastic wall.
This was partially because I enjoy the AFS while night driving on twisty roads in my area.
I finally got around to doing it. I took out the 5 amp fuse, the AHC relay and disconnected the battery. Pulled back the plastic and disconnected one of the wire connectors form the suspension module. I think the second from the top.
After that I put the fuses and relay back in, and connected the battery. As was suggested the AHC portion of the LCD display disappeared, and now it just shows the shift selector like a Tundra, or Land Cruiser I guess. (I had a 2008 Tundra, never had a 2008 Land Cruiser)
Interesting thing though tonight when I was driving home in the dark, I was surprised to see the headlights pint to the left as I turned left. Excitedly I began gently swerving left to rights and the headlights pointed left or right following the rotation of the wheel. I pushed the AFS off button, and they stopped. Pressed it again, and the lights began moving left to right with the turn of the steering wheel.
I was under the impression disconnecting the suspension control module to get rid of AHC disabled the AHC.
Did I misunderstand, or is this common for those that AHC delete?
I replaced my hydraulic shocks and stock coils with Old Man Emu a few weeks ago and had been waiting to disconnect the suspension control module behind the rear driver's side plastic wall.
This was partially because I enjoy the AFS while night driving on twisty roads in my area.
I finally got around to doing it. I took out the 5 amp fuse, the AHC relay and disconnected the battery. Pulled back the plastic and disconnected one of the wire connectors form the suspension module. I think the second from the top.
After that I put the fuses and relay back in, and connected the battery. As was suggested the AHC portion of the LCD display disappeared, and now it just shows the shift selector like a Tundra, or Land Cruiser I guess. (I had a 2008 Tundra, never had a 2008 Land Cruiser)
Interesting thing though tonight when I was driving home in the dark, I was surprised to see the headlights pint to the left as I turned left. Excitedly I began gently swerving left to rights and the headlights pointed left or right following the rotation of the wheel. I pushed the AFS off button, and they stopped. Pressed it again, and the lights began moving left to right with the turn of the steering wheel.
I was under the impression disconnecting the suspension control module to get rid of AHC disabled the AHC.
Did I misunderstand, or is this common for those that AHC delete?
Last edited:
turbo8
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- Thread starter
- #259
Great, I messed around with trying to get AFS to work, but I never put the AHC fuses\relays back in. Even though I really have no need for the AFS it would be good to know which plugs are plugged into the AHC ECU.
Looks like you have an early model LX as well, what year?
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2008 LX570
AFS is a nice luxury. I checked to see if I had photos of which connector I discoed from the suspension module but I do not. Wondering if that makes a difference.
I have a knock sensor fault, so that is lighting up my dash, no other codes. that being said, I can no tbe sure that haveing the fuse and relay in are not causing lights at this point but the codes say it is not.
Few photos with stock diamerter 18" Michelin winters on Tundra wheels, and stock diameter Pirellis on LX570 20" summers.
