just bought the 2006 RRS with (many) faults - Land Rover Forums : Land Rover and Range Rover Forum
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post #1 of 19 (permalink) Old 07-08-2019, 05:48 PM Thread Starter
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just bought the 2006 RRS with (many) faults

ok so i took the plunge and purchased this 2006 range rover sport from a local dealer who bit off more than they could chew. they advertised it with a suspension fault, and it's clearly sitting low.

just bought the 2006 RRS with (many) faults-img_ef32415d054d-1.jpg

it's got a few other problems:


two front windows don't roll up or down

parking brake is inoperable, always has orange and red dummy lights on the dash

alarm likes to kick on randomly. even while driving. when the alarm kicks on (while driving) the radio/LCD power off and the turn signals stop working... seems to be related to a faulty door or hood sensor. when the alarm engages while driving, the dome lights turn on. i did for a BRIEF moment see a "hood open" warning on the message center, peppered in between suspension fault and brake fault warnings. actually, the alarm just went off by itself in the driveway. i did pop the connector off of the hood latch and short the pins together, but it didn't seem to help.

before i go starting individual threads for each issue, i welcome all thoughts across the topic.

BTW, i never cared for the RRS, but i must admit it's growing on me.

2003 Disco 2 SE7 - going to be buried in it
2006 RR Sport HSE - project
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post #2 of 19 (permalink) Old 07-08-2019, 08:24 PM
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Poor grounds or wet wiring?
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post #3 of 19 (permalink) Old 07-08-2019, 08:28 PM Thread Starter
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Little bit from column A, little bit from column B.

I’ve already restored the front window operations by correcting some crap in the door sill loom.

Are there any direct references corrosion/poor grounds for parking brake fault or suspension fault?

2003 Disco 2 SE7 - going to be buried in it
2006 RR Sport HSE - project
1997 Disco SE - SOLD
2003 Disco 2 SE7 - SOLD
1995 Disco SE - SOLD
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post #4 of 19 (permalink) Old 07-08-2019, 08:34 PM Thread Starter
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I’ll also add that the parking brake seems to be working now, and the amber brake light comes and goes from the dash. I can hear it engage and disengage, but if I let the car roll a little bit it won’t engage until I shift out and back into park.

2003 Disco 2 SE7 - going to be buried in it
2006 RR Sport HSE - project
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post #5 of 19 (permalink) Old 07-15-2019, 08:42 AM
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Have you replaced the battery? You could chase a lot of electrical anomalies caused by low voltage. These things really do freak out when a battery is bad. If you have replaced it already, I recommend checking the alternator next. I just had to replace mine. It went out during a July 4th trip to Colorado which put my Range in the Colorado Springs LR dealership instead of on the trails. Sigh...

The last parking brake failure I had was when one side got stuck on while in the mountains. It cooked the disc and darn near made it shatter. Nothing I could do about it on the trail. I visited the LR dealer in Glenwood Springs (they were awesome, by the way). Cost $1700 for the system repair, new discs and pads. I could see your issue being related to low voltage if it isn't engaging properly.

When my alternator failed recently I got faults from the following systems: transmission, ACE, HDC, brakes (both yellow and red in the dash) and suspension. My cruise control wouldn't work, etc. Basically, everything freaked out because the computers weren't getting enough voltage.

I highly recommend purchasing an IID Tool from GAP Diagnostics. It gives you good info about what's going on with your Range. You can test individual bags on your Range with this tool to see if any of them are bad. There are a number of other awesome features that make it worth the money as well.

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post #6 of 19 (permalink) Old 07-15-2019, 08:52 AM Thread Starter
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thanks for that. i haven't replaced the battery as it tests out just fine and the system voltage tests well when running. i'm still thinking about doing it anyway...
my EPB error comes from releasing not setting the brake.

i have a nanocom EVO on the way, and in the meantime amazon will be delivering the LR foxwell device today.
hopefully i can pull some codes to point me in a direction.

i do have a new brake switch arriving today.

i connected a brand new hitachi air compressor yesterday and it exhibits the same issue, running for 1-5 seconds and then shutting off.

2003 Disco 2 SE7 - going to be buried in it
2006 RR Sport HSE - project
1997 Disco SE - SOLD
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post #7 of 19 (permalink) Old 07-15-2019, 09:25 AM
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I'll be interested to hear about the brake switch. Perhaps your suspension height switch is bad too? Maybe someone spilled their drink in the center console and ruined both switches causing the weird behavior? I hate throwing parts at a car, but sometimes you have to with intermittent electrical faults.

What's your system voltage when running? Mine runs at 14.2v-14.4v.

Did you replace the dryer when you replaced the air compressor?

Exactly which brake light is illuminated in the dash - the one that says "BRAKE" or is it the other system brake light?

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post #8 of 19 (permalink) Old 07-15-2019, 09:33 AM Thread Starter
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system voltage is comparable, low-mid 14V when idle.

i rebuilt the existing compressor/dryer and then replaced it with all new... no satisfaction.
i never thought to suspect the switch assembly, but the car is slammed to the ground and it knows it needs to raise... it attempts to raise as soon as i start the car, but it errors out immediately.

excited to pull some codes this evening.

i'm currently EPB error free, but when i have the error it's both the amber and red ones plus a little blurb in the message center.

2003 Disco 2 SE7 - going to be buried in it
2006 RR Sport HSE - project
1997 Disco SE - SOLD
2003 Disco 2 SE7 - SOLD
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post #9 of 19 (permalink) Old 07-15-2019, 09:51 AM
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Ah - you're probably good on voltage then assuming the battery gives enough to all the systems at startup until the alternator gets to its proper output.

I look forward to hearing your suspension fault codes. Can you make it raise at all or does it immediately fail? Could be a height sensor?

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post #10 of 19 (permalink) Old 07-15-2019, 10:01 AM Thread Starter
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the compressor will run for anywhere from 1-10 seconds before shutting off, though it's predominantly 1-2 seconds.
i don't believe the height sensors are faulty, as i have the 4x4 display and all of the sensors are accurately reporting the dumped status of the truck. when i jack up various areas of the truck, the sensors then report the changes in wheel position appropriately.

it won't raise at all. i've thought about refitting the compressor and manually powering it to lift the truck up, but that would only raise the truck and wouldn't serve the purpose of diagnostics.

i did replace the compressor relay, and i noticed that the relay socket looked a little melty... just a little.

2003 Disco 2 SE7 - going to be buried in it
2006 RR Sport HSE - project
1997 Disco SE - SOLD
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post #11 of 19 (permalink) Old 07-15-2019, 11:25 AM
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Originally Posted by reverendALC View Post
i've thought about refitting the compressor and manually powering it to lift the truck up, but that would only raise the truck and wouldn't serve the purpose of diagnostics.
Powering the compresor won't help cos it will just pump itself cos to raise the vehicle the air supply valves for the springs must open which doesnt happen when you simply power up the compressor... IMO it cuts out cos the valves dont open for some reason(management or electrical) then the pressure sensor cuts the feed of the compressor to protect it... another possibility is that the compressor's temperature sensor is making tricks cos the management cuts the feed based on that sensor's input, there are some conditions when the ECU inhibits the compressor operation based on various inputs and if one of those is out it will cut the feed, read the system's description if you want to DIY cos it's complicated, see "System inhibits" i attached the doc: https://docdro.id/yq7uJqs

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post #12 of 19 (permalink) Old 07-15-2019, 11:45 AM Thread Starter
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i have connected (electrically, not with airlines) a brand new compressor, not running lines to d-blocks etc. there is some electrical fault telling it to shut off, and i believe it's on the car not the pump considering the brand new pump has a brand new temp sensor.

2003 Disco 2 SE7 - going to be buried in it
2006 RR Sport HSE - project
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1995 Disco SE - SOLD
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post #13 of 19 (permalink) Old 07-15-2019, 01:16 PM
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Originally Posted by sierrafery View Post
... another possibility is that the compressor's temperature sensor...
When the temp sensor reads that the pump is too hot a message will display in the dash saying that the system is too hot and is cooling. I got this one a couple weeks ago when I was leveling my suspension. The pump was running a ton and it was really hot out. Unless you're seeing that message in the dash, it's probably not the temp sensor.

Now the air distribution block... that's a thought. Your code reader should tell you of the specific error, maybe it's that.

FYI - a completely different topic, but on your new Range, you should inspect the fuel tank cradle. It's all metal and actually holds up the fuel tank. Mine completely rotted and if it fully failed it would have dragged my fuel tank on the ground.

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2004 Discovery SE7
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post #14 of 19 (permalink) Old 07-15-2019, 01:30 PM Thread Starter
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I’m not convinced that the d blocks or lines are bad... well at least I’m not convinced that they have anything to do with the compressor kicking off immediately. All I get is “suspension fault, special modes unavailable” message. Nothing regarding temp. The compressor is currently pumping air out into the atmosphere so there’s no obstruction or clog causing this fault. I had hoped that maybe the old compressor was drawing too many amps for the relay, but a new compressor and relay yields no change.

It looks like the harnesses running beneath the door sills have seen a lot of water. I wonder if there are any wiring faults pertaining to EAS common to flooding of the sills. My front windows weren’t working due to water damaged harnesses in the passenger sill. I couldn’t very well trace the harness from the compressor, but it appears to enter the cabin beneath the driver seat.

Thanks for the heads up on the tank brace. I’ll check that when I can get this mofo to allow me to slide beneath it lol.

2003 Disco 2 SE7 - going to be buried in it
2006 RR Sport HSE - project
1997 Disco SE - SOLD
2003 Disco 2 SE7 - SOLD
1995 Disco SE - SOLD
2001 Disco 2 SE - SOLD

Last edited by reverendALC; 07-15-2019 at 03:03 PM.
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post #15 of 19 (permalink) Old 07-15-2019, 01:48 PM
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Originally Posted by reverendALC View Post
The compressor is currently pumping air out into the atmosphere
The system monitors the pressure in the air tank and if it's not increasing at an expected rate it'll kill the pump, drop it to access height and report a system fault. My first pump was getting weak and not making the required pressure "in time" so the system was killing the pump and dropping to access height. REALLLLY bad idea on the part of LR because it happened on the highway once and made the handling very dangerous - darn near undrivable at 70mph. I'd hook up the air lines to see what happens. Could very well be an electrical gremlin from water but at this point you can't really go any farther because the air system isn't getting what it's expecting from the pump if it's not hooked up.

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2006 Range Rover Sport Supercharged
2004 Discovery SE7
2003 Discovery S7 (sold)

What do you call a Land Rover that doesn't leak? Empty.
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