Both the "Off-road" and the "Access" symbols are illuminated on the center console and the vehicle can't be raised or lowered with the "raise/lower" switch and the vehicle won't self-level or self-inflate. Moving the "raise/lower" switch to either up or down causes the up and down arrows to both flash twice and a chime sounds.

This is on a LHD 2006 LR3 SE in Canada. I recently bought the vehicle from a neighbour who was the second owner and had owned it since about 2012. He was about to scrap the vehicle because of issues with the air suspension that he hasn't been able to resolve. I am slowly learning more about it's history and what has been done to it as far as troubleshooting, partly from talking to the previous owner and partly from trying to troubleshoot on my own. I'm new to Land Rover so I have lots to learn!

The previous owner has had a leak in the suspension for...years I would say. I would regularly see it sitting across the street on the bump stops and he would just wait for the compressor to fill the struts before he went out driving. He stopped driving it about a year ago and I found out that he thought he had blown a rear airbag and was having trouble getting a shop to do a coil spring conversion (I never quite understood why the shop wouldn't/couldn't do the conversion). So, he decided to scrap the vehicle, and I bought it off him for the price of scrap instead (thinking that maybe I could just replace an airbag and then drive it for a while).

It turns out all of the airbags are good except for one rear one that has a very slow leak. The compressor would run, but wasn't putting out any pressure at all. I replaced the compressor and relay with an AMK-style compressor and the system will build pressure, shut off at about 250 psi and exhaust the gallery pressure after the compressor shuts off. The vehicle won't raise on it's own, and the up/down switch would only chime/lights flash when selected to up (nothing when selecting down). I took the center console apart and looked at the circuit board and it looked like it had seen some water and there was corrosion around the backside of the connector pins. I used contact cleaner and a brush to clean up the corrosion and put it back together. Now the up/down switch will chime/flash lights when both up AND down are selected, but it still has both up and down arrows flashing twice.

After cleaning the circuit board I found out there had been a sunroof leak and the carpet had been very wet (I don't know for how long) and there had been "...some electrical issues..." as a result (sigh). I opened up the door sills on both sides and removed the trim pieces from the bottom of both A-pillars. There has obviously been some work done on the left (driver's) side. One connector low down on the left A-pillar has had one wire removed from it and that wire has been soldered together outside of the connector (I haven't been able to identify what connector it is yet). There was some mention by the previous owner of corroded pins so someone bypassed the connector with one of the wires. I disassembled that connector and a couple of other ones and didn't see any corrosion, and it looked like they had been cleaned and dielectric grease had been applied to the connectors. Dielectric grease had also been applied to several of the ground bolts at the bottom of the left A-pillar (disassembled, greased and reassembled).

I have a Gap IIDTool that I am learning to use. There are lots of codes, but many of them begin with a "U" which sounds like they may be cascading codes, so I'm hoping that some of them will disappear as I get issues resolved. Initially the only consistent suspension code was the "slow to build pressure" code (because the original compressor wasn't working). Now, I don't normally get a suspension code. It currently isn't throwing a suspension code but the vehicle won't raise off the bump stops on it's own. With the Gap Tool I can open each valve block solenoid (individually or all together) and fill all of the airbags and raise and lower the vehicle that way. It seems like the height sensors are all working properly. I have also unplugged, sprayed with contact cleaner, and plugged back in the rear valve block plug, and the two connectors on the frame rail just behind the rear left strut, as well as all the connectors in the center console and the connectors in the suspension ECU.

Over the course of my troubleshooting, the lights on the center console have varied from no lights on, to just the "off-road" light on, to "off-road" and "normal" lights on at the same time, and now "off-road" and "access" lights on at the same time. I wasn't watching the lights particularly closely so I'm not sure what order the changes were or what caused the changes, I just know that there have been varying combinations of lights being displayed.

This morning I cleared coffee and rescanned. I got three Body Control, a Park Brake, a transfer case and a transmission code. No suspension codes.

Is anyone familiar with what I am describing or does anyone have any suggestions on where to go with my troubleshooting? I'm pretty much out of ideas at this point. I apologize for the long post. Some people seem to give too little info with their questions, I may have given too much!

 

Odd it would hit 250psi, it should never do that until the bags are full and it switches to filling the reservoir. Which again can only happen after reaching proper selected ride height. The system will never fill the reservoir just for the heck of it.

As for the flashing lights, that pretty much means the EAS is disabled. It does not necessarily mean there is a suspension fault. In your case I bet the transfer case and or transmission faults are disabling the EAS. They are all very much tied together. And keep in mind the rear diff and transfer case are considered part of the transmission. Example, if the rear diff throws a hard fault you may get a "transmission fault, reduced traction" on the dash. Transmission is fine tho. Also in that instance EAS is usually disabled along with the terrain dial being disabled.

So basically you need to get the other issues resolved.

 

Oh! That's interesting! The Terrain dial IS disabled also. I was going to work on that next, but I'm beginning to realize how interconnected these systems are. So maybe I need to track down the codes I AM getting first. I'll work on that next week when I get home from work.

These are the codes that I got this morning:

Vehicle scanned on 08-10-2025 10:01
Using IIDTool BT V4.0 B4148

Body Control
B1A93-93 (2F) Invalid roof position - Component failure - no operation
( on 08-10-2025 09:58:06 at 158900 km )
B1C57-14 (2F) Passive start ignition relay coil circuit - General electrical failure - circuit short to ground or open
( on 08-10-2025 09:58:07 at 158900 km )
B1D14-15 (2F) Interior lamps 2 circuit - General electrical failure - circuit short to battery or open
( on 08-10-2025 09:58:06 at 158900 km )

Parking Brake
U0122-87 (EB) Lost communication with vehicle dynamics control module - Bus signal/message failure - missing amessage
( on 08-10-2025 09:59:05 at 158900 km )

Transfer Case
U0122-87 (2F) Lost communication with vehicle dynamics control module - Bus signal/message failure - missing amessage
( on 08-10-2025 09:58:10 at 158900 km )

Transmission
P0500-00 (2F) Vehicle speed sensor A
( on 08-10-2025 09:58:10 at 158900 km )

 

Hmmm...ok. Is there something else I can/should be watching? When I start the engine and watch Live Values the Gallery Pressure is normally somewhere around 30psi. After about 3-5 seconds the compressor relay is powered and the compressor starts running and it continues to run until the pressure switch turns it off at about 258psi. I didn't have the plug in the end of the reservoir tightened so the reservoir pressure would always leak down to 0 psi pretty quickly. I tightened the plug a couple of days ago and then when I started the engine, the Gallery pressure was sitting around 30psi, then the reservoir solenoid must have opened because the pressure jumped up to about 180psi when the compressor started (obviously there is still a bit of a leak around the plug), and continued to fill the reservoir until it shut off at 258psi. Is that possibly related to the EAS system being disabled so the airbag solenoid valves aren't opening?

 

Gotta look deeper into that transmission speed sensor issue. That is very, very likely your issue to all this. Since we now know the EAS is not truly disabled I bet it is leveling the vehicle slightly at startup to standard height? That is the only reason it should move onto filling the reservoir. Also based on those pressures you need a software update of the compressor. Also, I should have asked before, you said AMK style - was that the same style as before? If not you need to change the compressor type with the GAP tool.

 

I have watched the live values for both front and rear valve blocks (all four solenoids) and haven't seen any of them open, but I'm not sure that I was watching right from starting the vehicle. I'll check that.

The failed compressor was a Chinese Hitachi-style. I flashed the AMK software onto the ECU after installing the AMK-style.

 

I have fixed the Wheel Speed Sensor that was causing a fault and I did a hard reset with the battery cables and also cleared the codes with the Gap Tool. The suspension was lower than "Normal" and both rear corners were on the bump stops I think. I started the vehicle and the compressor ran until the pressure switch shut it off at 258psi, but the suspension didn't seem to increase at all (I think) - it may have raised everything to "Access" height, but that was it. The three amigos are all still illuminated. I used the Gap Tool to increase the suspension to "Normal" height, and as soon as I started to drive the amber suspension light illuminated on the dash and all four corners deflated to "Access" height and a "Suspension Lowered" message came on the dash display. I have attached the DTCs that are now coming up.

L319 - LR3 2006
Vehicle scanned on 13-10-2025 13:07
Using IIDTool BT V4.0 B4148

Body Control

B1A93-93 (2F) Invalid roof position - Component failure - no operation
( on 13-10-2025 13:06:04 at 158900 km )
B1B02-28 (2F) Low frequency coil - General signal failure - signal bias level is out of range/zero adjustment failure
( on 13-10-2025 13:07:00 at 158900 km )
B1C57-14 (2F) Passive start ignition relay coil circuit - General electrical failure - circuit short to ground or open
( on 13-10-2025 13:06:05 at 158900 km )

I experimented a bit with inflating the corners with the Gap Tool, driving a bit, deflating down to the bump stops, reinflating, etc. A couple of times I got stuck on the bump stops (or just off the bump stops) and for some reason couldn't increase the height anymore. One time I raised both back corners together to "Off-road" height and then started raising both front corners, they raised to just below "Normal" height and then stopped. I left it for about fifteen minutes and then came back and I was able to raise the front to "Off-road" height without any problem. It made me wonder if the compressor had overheated and that had stopped something, but at that moment the compressor temperature was only 54 degrees Celsius.

Every time I used the Gap Tool to set "Normal" or "Off-road" height and then started driving, the suspension would immediately lower to "Access" height. Also, one time I couldn't get the front off the bump stops I finally gave up and started driving and as soon as I started driving the vehicle automatically raised itself to "Access" height.

Any ideas what is causing the three amigos with only the three DTCs that I am currently showing?

 

Fixed... good. Did you calibrate it? If not that is your issue for sure. Only other thing that can cause your issues, that comes to mine, is a bad ABS sensor.

 

Calibrate the suspension? No, I didn’t realize I needed to do that to get rid off the dash lights. I’ll try doing that. Will not being calibrated turn/keep the three amigos on?

Can an ABS sensor be bad if it is still showing the wheel speed? Live values show all four ABS sensors showing the correct wheel speed.

 

No, not calibrate the suspension. The steering angle sensor.