Thursday Night, April 26, 2012 - 9:00 PM in Dark Driveway..

Last night I proceeded to attempt what I though would be an easy remove, plug and play replacement.

I removed the rear right tire from my Rover, found the Height sensor location, and stared at it intently to figure out how to remove each end of it. The lower part (opposite side from the connection) came off with some gentle help from a flat-head screw driver.

As "therealassmikeg" notes in previous reply, the connected side is attached to a small metal bracket with two hex screws. After wrestling to get my fat fingers and hands in position to loosen, i was able to get both off. As he also notes, releasing the connector was a freaking bit*h, and i DID break both tabs. NOT ideal given there is vibration and I assume now, eventually, the thing could vibrate and disconnect while I'm driving.

I then went to put the new one on.

"therealassmikeg" was once again right. The new sensor comes with some sort of metal bracket. I attempted to use the OLD screws to tighten the new sensor in place, but the holes in the new sensor bracket were too small for the screws from the OLD sensor.

I then realize there were two screws tightened inside of the new sensor (in opposite holes). I assumed there were there to us, so I removed them, and went for re-install.

Now, the bracket is a square...with four holes - one at each corner. The Bracket on the rover is designed to screw on top left and bottom right (hence, two screws). When you do this, the sensors' female connection is vertical (sticking straight up in the air attached to the bracket, so the male just goes down into it).

Well, I got all the way here before I realized that the Holes in the bracket would NOT align up in the correct corners when the female on the sensor was vertical - HENCE, did the dip **** at the parts store give me the sensor for the left side, and not the right??

By this time, the screws for the old sensor were strewn about my driveway, and I had to re-install it with ONE screw. F. M. L.

I drove the vehicle and we're not only getting the suspension default now, but the tire (via the nav screen) appears to be falling off the truck, and the vehicle lowers to an unheard of height. I feel like I'm in a low rider and after my commute this morning I could swear my *** was bleeding from feeling every nook and cranny in the road.

Did I buy the wrong sensor or did I just not see something that should have been obvious?

 

The correct part numbers for the sensors are;

Unfortunately Land Rover requires 4 different height sensors. So these are added to the kit;
LR020157 Front suspension, Ride control, Front sensor, lr3, right- w/air suspension - W/AIR SUSPENSION 1 $44.22 *
LR020155 Front suspension, Ride control, Front sensor, lr3, left- w/air suspension - W/AIR SUSPENSION 1 $44.22 *
LR020161 Rear suspension, Ride control, Rear sensor, lr3, right- w/air suspension - W/AIR SUSPENSION 1 $44.22 *
LR020159 Rear suspension, Ride control, Rear sensor, lr3, left- w/air suspension - W/AIR SUSPENSION 1 $44.22 *

 

When you say "parts store" do you mean like auto zone, Land Rover, AB, Or Rovers North??
If you bought from auto zone or the likes, get one from a reputable Land Rover parts supplier.


The sensor has to mount with the connector facing the same way you took it out or your suspension will malfunction as you described.
The connector faces straight up for the 2 rear sensors. Straight down for the 2 fronts (on your LR3)
Recheck and compare the part numbers as described and make for sure you installed the correct sensor. If it is the correct sensor you just need to install it correctly. You may need to remove the metal plate that is attached to the new sensor depending on the mounting braket configuration on your particular vehicle.
As was stated in a previous post disconnect the battery to ensure no change in ride height will occur while you are performing these repairs.
Just opening the door to suspend the ride height adjustment is NOT sufficient


LR020161 ...............Height sensor kit - RHR - LR3 / Range Rover Sport - AH22 5B732-AB

YMQ503220.............Overlay harness/connector Qty As needed

 

Replaced The sensor - part number was right - and same issue. The Vehicle raises, I drive a few miles - the suspension fault light goes on. On the Nav screen, the right rear wheel does seem to go all over the place. Then after a few more miles, the wheel (via the nav screen) falls off, and the vehicle lowers.


Suggestions on what is next? perhaps the height sensor has nothing to do with why the suspension fault is coming on??

 

It could be in the wiring. It is also possible that the height needs to be re-calibrated. This is normally done when you do a 4 wheel alignment as part of that process. I believe it is recommended to recalibrate the height if you change a sensor. I could be wrong, but that is what I recall.

 

 

I have probably posted this a million times (not trying to condescend here) but buy an IIDTool from GAP Diagnostics. That way you can check your EAS Calibration, and adjust as needed.

 

 

Hmmm....I do think it's odd that one corner sank to the bumpstops. Was there a suspension fault as well? Sounds kind of like an "out of range" situation but that usually just takes the whole vehicle to normal height. Could that have been the case but because of the situation the rear looked stuffed due to articulation? Or did the LR3 say otherwise in the info display?

Here is what I'd do: explain, in vivid detail, what happened and what you saw....both here on this thread, and in an email to these guys: GAP Team <gapteam@gap-diagnostic.com>.

They will help you.

 

Where to begin lol...

So this is my first LR, got it a couple months ago. Well taken care of by single previously owner. According to him, bags were recently replaced, rebuilt compressor put in, new front and rear valve blocks. Has Johnson rods installed. Holds full height even if parked for a week.

Right rear height sensor was acting up, screen would show it drooped all the way down, but it was normal and Gap showed normal voltage on sensor too. Repeated issue a few times, so I replaced sensor, checked wiring condition and recalibrated...just this morning same issue, shows wheel all the way down, red suspension light. Error:

• C1A06-92 (AF) Rear right height sensor - Component failure - performance or incorrect operation
  ( on 29-05-2018 10:19:28 at 153835 mi )
  - Test Failed
  - Test Failed This Monitoring Cycle
  - Confirmed
  - Test Failed Since Last Clear
  - MIL Requested

Yesterday, took it to an offroad park to test things out...major issues, numerous faults. At one point, for no reason on level ground it went down to bumpstops.

Some questions that I cannot seem to find on forum searches and reading the technical manual for the EAS:

There are no valves on bags themselves right? All air in/out is controlled by front/rear valve block and center block near compressor right?
When offroad, and suspension is articulating, I hear air sounds "chhh, chhhh, chhh" as wheels go up and down. I am guessing it is normal letting bags compress/fill?
When suspension drops to bumpstops, all height sensors show Out of Range, and thus unable to bring it back up. Must use Gap to manually inflate each to get it back within range...this seems odd no?

Here are the other faults I am seeing:
C112F-72 (2E) Air spring valve - Mechanical failure - actuator is stuck open
C1131-92 (2E) Air supply - Component failure - performance or incorrect operation
C1130-7A (2E) Air spring air supply - Mechanical failure - fluid leak or seal failure
C1A20-64 (AF) Pressure increases too slow when filling reservoir - Algorithm based failure - signal plausibility failure
C1A13-64 (2E) Pressure does not decrease when venting gallery - Algorithm based failure - signal plausibility failure

I'm somewhat at a loss here. I read and read about all the errors but am not figuring out what the culprit is.

I'm thinking I should start a new thread with this info.