Hi - The Engineer,
I noticed that you wrote in your last post that you have recently replaced the track rod ends, I would check that the fault is not just due to your steering angle sensor now possibly being out of calibration, we sometimes see this fault come up after replacing the track rod ends.
Your ABS sensor is right at the top of your hub well away from where you would have been hammering - as you say - it is quite possible that the hammering has affected it, but we have never experienced this.
The big three sensors the air suspension system uses to "feel" what the car is doing is ABS + Steering Angle + Height/Yaw, Ric355 is quite right - there are many more, but many of the L322 air suspension faults are due to one of these three.
I would begin by seeing if anyone on the forum would let you link your car up to a Land Rover diagnostic system maybe Bearmach hawkeye? Read and record your fault codes (especially the ABS + Steering Angle + Height/Yaw sensors).
Clear your fault codes and recalibrate the steering angle sensor, does this solve the problem? - If not....
Have a look at the air suspension system live data, you will want to see if the height sensors are providing clear information as to the height at each corner of the vehicle, bounce each corner, the figure should move accordingly. Don't worry too much if the values are not exactly the same between the left and right height sensors. Visually check each height sensor arm to ensure that it is not worn out, seized or installed in the wrong orientation.Check your sensor connections, clean out with electrical contact cleaner. At this point you now know each of your four height sensors are providing data and are operating correctly.
Visually check your ABS cabling for wear, if you have access to an oscilliscope you can easily test each sensors output is correct. You will now have confidence in your ABS sensor outputs.
If you find any faults in the above put them right then.Delete any fault codes, reset your steering angle and hopefully everything should be ok.
If not you will need to look deeper into the air suspension system, but at least you have ruled out the usual suspects.
If you need any further help just PM me, if what i explained above seems too complicated , leave your vehicle into a good independent LR specialist, everything I have detailed above should not take more than 1 - 1.5 hours.
Hope this is of use.
Stephen
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