replaced 2 strut mounts and this came on. car will not go into dynamic mode anymore. anyone have an idea on what the problem is? adaptive dynamics faults

 

2859 bar, I was getting this problem on my car. IT turned out to be a bad shock. You will need to connect up the SSD program to look deeper into the codes. But, if you are going to take stab in the dark, odds are, you are going to find the right hand side front shock to be the bad one. This one seems to be the one that fails the most often.

 

That was the same problem with my front right shock as dynamic could no longer control the adjustable electronics in the shock. As this happened @ 96k I went ahead and replaced all the shocks and problem gone and ride restored to like new.

 

i also replace that one

 

thanks guys. i will keep you updated

 

2014 XJR adaptive dynamics faults..... I am wondering if the problem with my XJR adaptive dynamics fault has anything to do with the transmission Control module? Or could it be height sensors (front solenoid’s)?

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Connect up the SSD computer to see what the code is that is being given. That will tell you everything that you need to know. Without the code, you are just guessing as to what the problem is. Could it be a computer, sure. Could it be the height sensor, maybe. BUt, if you are wrong, that cost is going to be way more than even paying the dealership to tell you the code of what is wrong.

 

code is saying both of those items

 

2859bar, I would start with the height sensors first then. Those are the more likely thing to become damaged due to something getting under the car as you are driving. With that being said, is the fault code saying that both front sensors are bad? If so, then I would be looking at wiring first. I only say that as having both sensors go bad at the same time is very unusual and would lead me to think that the problem is somewhere else. Looking at the diagrams, the most likely wire to become damaged would be the reference voltage wire which feeds both of those sensors. Just for reference, these sensors have nothing to do with the TCM, so, we have separate issues here.

Out of curiousity, could you post the code(s) that you are getting. That may help narrow things down a little bit. The manuals I have list what are the common problems associated to various codes. That may help give a bit of clarity to the situation.

 

Agree with Thermo.
Can you post the codes or a picture of the SDD screen?
That might help?

Did the strut mount replacement go OK? Did you replace them or pay a shop?
I recently did this repair on a fellow forum members 2014 XJR and there is potential for wire damage.
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did both strut mounts. could this have done damage?

 

a shop did the mounts. not me

 

I would check the wire connection on top of the strut. Maybe pull it out inspect and reinstall. It's pretty simple but they have to inserted correctly.
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i will get back to my friend at the shop and get all the codes. i will keep you updated. the people here are so helpful. thanks

 

what does the electric connection do on top of the shock? on an XJR

 

2859bar, that electrical connection controls a valve inside the shock. When there is no power applied, the valve goes fully closed and it causes the shock to go to maximum stiffness (ie, dynamic mode). Under more normal conditions, there is a pulsed signal that gets sent to the valve to cause the valve to open slightly. If the car decides a stiffer shock mode is needed, it produces a pulse that is off a majority of the time and one very little. If the car says there should be a very soft ride, then it will have a lot of on (power applied) time with very little off time. This valve controls how easy fluid moves inside the shock. If the valve is closed, it makes for a very torturous path that provides lots of restriction, therefore, the shock is very difficult to move rapidly. If the valve is energized, the path is not very restrictive, therefore the shock can move up and down very easily, making for a smoother ride.

 

so could this make a problem with adaptive dynamic fault on?

 

2859bar, yes it can. When my right front shock failed, I would get random Dynamic Suspension faults. It wasn't until I read the codes that I could isolate the problem down to the shock itself. But, keep in mind that the Dynamic Suspension system is looking at a lot of different sensors (ride height, X/Y/Z motion sensors, throttle position, steering wheel angle, etc) and then looking at what it thinks the car is doing and altering the pulse going to the shocks to give an appropriate shock stiffness to maximize wheel contact with the road and to minimize body roll. It does this "calculation" like 500 times a second. So, jumping at a shock right off the bat is somewhat misleading as your problem could be elsewhere. That is why we ask about the codes. But, you have posted the codes and based on what you are seeing, the codes are pointing more to the height sensors than anything else.