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littlecub



Member Since: 02 Apr 2013
Location: Ulverstone,Tassie
Posts: 323

Australia 2003 Range Rover HSE Td6 Epsom Green
no low range TD6

I normally use my low range every 2nd or 3rd week to keep it mobile,altho its just a short trip in low range -- length of house/backyard and in/out of shed.(have large shed down the back where I park the beast as boat and trailer fit neatly in front garage)
Its normally quite good,but am having trouble getting it do go into low the last few days.
Tend to use it when the car has been for a run so the g/box and hopefully transfer box is up to temp.
Have tried to engage low for 5 days now and it still doesnt want to go into low.
Oil was changed approx 15000 k's ago.

Is there anything I can check too see if something is stuck/loose or any other method to see why it wont go into low.
NOTHING shows up on GAP tool either.

Thanks
littlecub

Post #664141 15th May 2023 4:48am
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littlecub



Member Since: 02 Apr 2013
Location: Ulverstone,Tassie
Posts: 323

Australia 2003 Range Rover HSE Td6 Epsom Green

Does anyone have any suggestions......
48 people have looked at this thread.........and counting

Post #664283 16th May 2023 7:40pm
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RRPhil



Member Since: 22 Aug 2011
Location: Blackburn, Lancashire
Posts: 908

United Kingdom 

You could use fuse 37 to put the transfer box in Neutral (providing you’re on the flat and the handbrake works). This would at least confirm that the shift motor and rotary potentiometer are functioning. Do you suspect that it might be the switch itself at fault?

Phil

Post #664293 16th May 2023 8:37pm
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stuart_2006



Member Since: 17 Jul 2018
Location: Holsworthy, Devon
Posts: 113

United Kingdom 2006 Range Rover Vogue Td6 Zermatt Silver

So what exactly does it do when you try to select low range? Is it trying to change? Does it do anything at all?

Post #664294 16th May 2023 8:41pm
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littlecub



Member Since: 02 Apr 2013
Location: Ulverstone,Tassie
Posts: 323

Australia 2003 Range Rover HSE Td6 Epsom Green

RRPhil,
Have been busy today, will try your suggestion tomorrow.

Stuart,
It doesnt do anything when I press the lever. I normally hear a faint couple of clicks to let me know that it has engaged or disengaged as the case maybe. The symbol died after I was rear ended many years ago and I havent been bothered trying to find the cause.
As an aside......the symbol comes alive when I flick the gearshift over to sport mode and disappears when I put it back to normal mode.

cheers
littlecub

Post #664308 17th May 2023 5:26am
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littlecub



Member Since: 02 Apr 2013
Location: Ulverstone,Tassie
Posts: 323

Australia 2003 Range Rover HSE Td6 Epsom Green

RRPhil,
I get nothing on dash to say "transfer neutral" with engine on or off Censored

I did have the box redone 160000 K's ago but NOT the transfer case.

Have 185000 k's on the transfer case.

So what would you suggest I do..... rebuild/get new one( do they still make them?), recon model or second hand one.
Whats the cheaper option seeing as I am a pensioner now.

regards
littlecub

Post #664388 18th May 2023 6:10am
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stuart_2006



Member Since: 17 Jul 2018
Location: Holsworthy, Devon
Posts: 113

United Kingdom 2006 Range Rover Vogue Td6 Zermatt Silver

Have you tried googling the problem ... seems to be suggestions that the problem might be electrical rather than mechanical, so replacing the transfer case may not help.

Post #664452 18th May 2023 9:12pm
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p38arover



Member Since: 16 Dec 2015
Location: Western Sydney
Posts: 1516

Australia 2004 Range Rover Vogue 4.4 V8 Adriatic Blue

Garry, did you see my reply on AULRO? Ron B. VK2OTC
2004 L322 V8 Auto
2007 Yamaha XJR1300
Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA

Post #664457 18th May 2023 11:04pm
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RRPhil



Member Since: 22 Aug 2011
Location: Blackburn, Lancashire
Posts: 908

United Kingdom 

littlecub wrote:
RRPhil,
I get nothing on dash to say "transfer neutral" with engine on or off Censored

I did have the box redone 160000 K's ago but NOT the transfer case.

Have 185000 k's on the transfer case.

So what would you suggest I do..... rebuild/get new one( do they still make them?), recon model or second hand one.
Whats the cheaper option seeing as I am a pensioner now.

regards
littlecub

Just ignoring any indication on the dashboard for a moment, can you hear the shift motor moving when you insert fuse 37? Does the transfer box, in fact, go into neutral i.e. will the car roll even in Park? You need to determine if the problem is with the switch, the shift motor (e.g. potentiometer), possibly the ECU, or a mechanical issue. You just need to go through a process of elimination.

Phil

Post #664511 19th May 2023 4:21pm
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p38arover



Member Since: 16 Dec 2015
Location: Western Sydney
Posts: 1516

Australia 2004 Range Rover Vogue 4.4 V8 Adriatic Blue

Garry, on AULRO you said:

[QUOTE=disco gazza]Have had a "noise on actuator" on transfer case for a bit and now its gone as well as going into/out of low range.
Could this be the potentioner going out of wack.
If so is it reasonably easy to fix.
Any hints/tricks greatly appreciated.[/QUOTE]

Was the noise mechanical or electrical noise reported by your electronic diagnostic system? Ron B. VK2OTC
2004 L322 V8 Auto
2007 Yamaha XJR1300
Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA

Post #664519 19th May 2023 7:44pm
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RRPhil



Member Since: 22 Aug 2011
Location: Blackburn, Lancashire
Posts: 908

United Kingdom 

“Noise on actuator signal” is the usual diagnostic fault code for the potentiometer, sometimes together with an output speed signal error.

https://www.fullfatrr.com/forum/post491374.html#491374

Phil

Post #664525 19th May 2023 10:23pm
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p38arover



Member Since: 16 Dec 2015
Location: Western Sydney
Posts: 1516

Australia 2004 Range Rover Vogue 4.4 V8 Adriatic Blue

I had both symptoms with mine and it did have cracked solder joints in the potentiometer. Ron B. VK2OTC
2004 L322 V8 Auto
2007 Yamaha XJR1300
Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA

Post #664527 19th May 2023 10:55pm
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littlecub



Member Since: 02 Apr 2013
Location: Ulverstone,Tassie
Posts: 323

Australia 2003 Range Rover HSE Td6 Epsom Green

Had to go down the shops,when I got back I parked on a bit of a slope.
Put fuse in "37", neutral-- no change,nothing on dash either. While still parked there,put it into park,handbrake off,
it settled in "park" NO movement. Also no drive either forward/backward whilst fuse is in "37".
Took fuse out, normal drive forward/backward resumed.
IID tool has in "Transfer Case" Gear Selection...LOW_STOP. But it is still in HIGH range.

Sorry but cant remember the code that used to come up with" noise on actuator" as it does not come up anymore.Cant find the piece of paper that I had it written on.

Am getting 2nd hand transfer case from a mob in Adelaide,so I'll put that in when I get it.

Does it need to be programmed into the system or is it plug and play.

Thanks for all the help so far, much appreciated.

cheers
littlecub

Post #664528 20th May 2023 1:00am
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p38arover



Member Since: 16 Dec 2015
Location: Western Sydney
Posts: 1516

Australia 2004 Range Rover Vogue 4.4 V8 Adriatic Blue

To be honest and being the cheapskate that I am, I’d check the potentiometer first.

However, I was an electronics technician so I’m not afraid to try a repair (which I did successfully). Ron B. VK2OTC
2004 L322 V8 Auto
2007 Yamaha XJR1300
Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA

Post #664529 20th May 2023 1:08am
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RRPhil



Member Since: 22 Aug 2011
Location: Blackburn, Lancashire
Posts: 908

United Kingdom 

Mechanically the NV225 is pretty robust. I would certainly try swapping over the shift motors (just 3 bolts) before resorting to replacing the whole transfer case.




The ECU isn’t coded to the transfer box or the vehicle, so it should be just plug n’ play


This is the calibration process that you’re supposed to carry out for a new shift motor:



This enables the ECU to determine the position of the end stops on the shift fork rail



Phil

Post #664538 20th May 2023 10:31am
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