06 LR3 suspension issue

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DoctaX

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Hey guys I have been fighting this issue for some years now and even a ACE certified mechanic at a non Land rover shop could not get deep enough into the error codes to figure it out. I have all new ride height sensors ( non oem) and new air shocks. When I start vehicle all is well except that any right turn over 25mph or so triggers the roll over warning and applies brakes. After 10 to 15 min the yellow suspension fault is triggered and truck lowers/ other times the brake warning and roll over warnings illuminate but not always. I m sure someone out there is dealing with the exact same scenario. Im getting ever so close to rolling it off a cliff. I welcome any advice I am loath to replace the after market sensors with oem as the cost will supersede the value of this rolling money pit. Please help!!!
 

Houm_WA

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Okay Docta.....let's pump the brakes. I think I can help, but let's harmonize terminology here and clarify a few things. What are you referring to as the "rollover warning" since there is no such thing? What aftermarket sensors did you get? I've never heard of any height sensors in the aftermarket and the OEM ones, imo, are relatively cheap. If you ACE certified mechanic couldn't figure it out from the codes, then I doubt they had the resources to do an EAS calibration after your sensors were installed, which may have something to do with it.

Do you have the codes? Do you have a GAP tool or equivalent? You're going to drive yourself crazy owning this vehicle w/o one. Also how fresh is your battery? Phantom faults at startup are often due to a failing battery.
 

DoctaX

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Thanks so much for responding. I will get my ducks in a row and send you as much info as I can muster. I have been battling this for 3 years and drive the truck so seldomly I have forgotten much of the details but would love your help. Thanks again for helping. D
 

remember5

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Guessing that is what is being interpreted as a roll over warning. Actually that refers to the suspension which as noted a bunch of times and mentioned by Houm above is that the suspension must be calibrated or you will get that warning and the suspension will drop. You cannot calibrate the suspension without some type of diagnostic tool whether it be the GAP, Nanocom, or whatever others are out there. There are also a million other things that can cause these conditions from coffee spilled in the console in 2010 to leaving the sunroof open during a storm in 2012 to that stupid mouse that nibbled the wire under the dash. But... since you changed the sensors and air bags my guess is the calibration issue and since my LR3 behaved similarly and calibration solved it, I would recommend you try that first.
 

robrike1

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I can attest to the accuracy of all the guys who posted above. They helped me with a similar issue and it lead to me buying the GAP iid tool. I also bought a metric tape measure and used the GAP tool and did their guided calibration. One calibration and it never dropped to the stops again on me. I fought that for over a year with an inferior tool to the GAP.

Best purchase I ever made tool wise for that car. I'm replacing front lower arms now so I'll be calibrating again soon.

Buy one and make your life easy. I don't work for them by the way but they are a straight up solid bunch of guys. Answer email questions about as if you sent them a text. That quick during business hours and sometimes after hours.

A calibration will fix you right up, I'm certain of it.

Robert
 

DoctaX

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Thanks to both of the above posts. As far as the coffee spill, the sunroof leak and the mouse nibbling the wires have you been in my Lr3?????? since all 3 have literally been an issue. I am ready to pony up for the GAP as I am at my wits end.
 

Houm_WA

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Okay I had a feeling it was that. This is the indication of a DSC engagement. While that is a normal function of the LR3, it shouldn't happen all that often. Sometimes this frequent DSC engagement is caused by a worn out bushing (either control arms, swaybars, or both).

So it sounds like two things:

1. Suspension issue. This could be a great many things and you'll need the GAP to diagnose that. Hopefully it's just a brake switch or something easy/cheap.

2. I'd have your suspension components looked at for wear. You could do a lot of that yourself; just drive around listening for knocking, clunking, etc. In particular the swaybar bushings will be a dull "thunk" when you hit bumps that create body roll. The control arm bushing "clunk" can easily be generated by idling along at ~5mph then briskly snapping the brake pedal.
 

remember5

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May be worth checking the switch on the fascia for a short.

4. Dynamic Stability Control (DSC)/Traction Control Indicator
The DSC/traction control indicator is illuminated by the instrument cluster software on receipt of CAN signals from the
ABS module. The indicator is illuminated in an amber color for 3 seconds for a bulb check when the ignition is switched
on. If no faults exist, the indicator is extinguished after the bulb check period.
When DSC is active, the indicator flashes to inform the driver that the system is regulating engine output and braking
forces. If the indicator remains illuminated after the bulb check period or illuminates when driving, the DSC system has a
fault or DSC has been deselected by the driver using the DSC switch on the fascia.

1650322307602.png
 

Houm_WA

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This doesn't sound like a short or a fault to me. It was a momentary engagement in a turn, which is exactly when DSC should activate, but it's usually not happening in routine turns at what I assume are normal speeds and conditions. That's why I think it's related to something loose in the suspension. It's been reported over the years.
 

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