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So my 2003 LS430 UL is not level to the ground. The passage rear side is 1 inch lower than the right rear side.It is very noticeable. I purchased a used one on ebay and had it replaced. Still the same. When i set the height on high the car goes up about 1 inch all the way around. I assume that means all 4 shocks are working. What else could it be. Help
No matter how much I move the adjustments the distance does not move. I have 29 inchs on one side and 30 inchs on the other. From ground to center of tire well. On high height it is 1 inch higher.
Since your air suspension system is not responding to changes to the height sensor, the next items to check are (in following order):
1) a defective height sensor
2) a bad connector or wire harness
3) a defective ECU
Are you getting any DTC? Attached are pages from the factory repair manual regarding air suspension system height control.
Since your air suspension system is not responding to changes to the height sensor, the next items to check are (in following order):
1) a defective height sensor
2) a bad connector or wire harness
3) a defective ECU
Are you getting any DTC? Attached are pages from the factory repair manual regarding air suspension system height control.
I am getting height changers I am not getting any air to the RR shock.
I had the shock changed,i got it on Ebay. I used a air compressor and put air in the one that was taken out held air with out leaking.I have no idea how to check the air lines. I can not even see them.
I had the shock changed,i got it on Ebay. I used a air compressor and put air in the one that was taken out held air with out leaking.I have no idea how to check the air lines. I can not even see them.
The LS430-UL has an automated air suspension system. It has an air compressor to supply air to the 4 air shocks via independent control valves. The air suspension ECU receives input signals from the 4 height sensors, and based on these inputs, it sends output signals to these control valves to adjust each air shock (either by adding or venting air from the air shock) to keep the vehicle level. The air line for the rear air shock is shown (see white arrow) below...
Here's a sketch of the various components of the air suspension system...
I had a similar issue with my 04 UL. Mine was lip sided, driver front was up 1” and passenger rear was low 1.25”. I ended up recalibrating all 4 corners. What I found is, directions state the car must be on level ground, tried that but wouldn’t lower correctly with height sensors. Found a incline that was flat and level if that makes sense, raised the car up to high, checked all measurements, lowered or raised which ever corner needed it. Drop it back down to standard, checked measurements, raised it back up to high and did another adjustment, dropped it down with last cycle and it was perfect all the way around.
So so while I was at it I ended up lowering it by 1.25” in the front. Came out perfectly......after a few cycles of adjusting each leveling sensor and up and down.
Car not level
