Guys can anyone sort this one out .............

so now 2 Months on

with either the
Range Rover re-calibrated ( Factory reset with Snap On Tool
OR
Reset with Land Rover dealership diagnostic tool

I get this fault:

The car runs perectly for around 50 to 200miles ( motorways & A roads ) with NO amber TPMS warning lights coming on.........

THEN for what ever reason the amber warning light comes on - fault ?

so stop the car
Snap on Tool comes out - into the `ECU port - FACTORY RESET EVERYTHNING - takes about 5 mins

Start the car and is all perfect again for around 50 to 200 miles

Then it starts all over again !



Now I have purchased all new parts for the TPMS as below:


1) Purchased Brand New TPM Senors x4 from LR dealeship
( £600 ish )

2 Purchased Brand New Landrover TPM reciever ( £ 150 ish )

3 Calibrated all 4 wheels / TPMS with Snap on Tool - all OK

4 Purchased another Brand New Range Rover car battery 900 amps - so voltages are spot on ( £ 380 ish )

5 all x4 tyres on Range Rover are brand new ( 3,000 miles so far )


Ranger Rover has been reset and all x4 TPMS codes have been entred - all correct

Tyres are at correct pressures
Tyres are correct ie `MINT condition with 7mm tread
Tres are at the corrcet Tyre Pressures - handbook checked


Is there such a thing as a " Ghost in the Machine "


I have even had the main battery disconnected for 2 days with the Earth Lead only attached
to ensure no static or current is left in any of the ECU's


Everything else on the L405 Range Rover is 100% perfect - ie NO other waring lights

It's just this TPMS cant seem to play ball

IT WORKS WHEN Reset FOR 100 or 200 miles - then all of suddend on the motorway travelling at 70mph it comes on - saying Fault ??


IT IS WORTH NOTING - There is NO spare in the boot


would appriciate help on this one.




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Might be a complete red herring but my TPMS went haywire after I fitted a dash cam. Disconnected the DC and the TPMS came back on. Now I keep the dash cam on and TPMS works sometimes. Seems I can have one or the other.
Good luck.

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Spridget



Now thats an interesting comment !

something so simple as that -

out of interest we Dash cam we have are

Blackvue DR900S-2CH 4K Dashcam

I will disconnect from the Mother Board as road test

Thanks for taking the time to reply - appricated






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help .....

after everything been replaced with genuine lr parts from main dealer -

the tpms - works for around 100+ miles

after
when the amber warning light comes on & stays on - it's reset using the snap on tool to reset everything on the car -

after this it's perfect again - works ...... but only for 100+ miles or so ( today 175 miles )

example
with it fullly working - travelling down a motorway at a steady 70 mph - the amber warning tpms will light up saying .........fault.



any thoughts ?????????


car battery - is brand new
voltage is 13.2v parked
tmps all x4 are brand new
tpms codes for each wheel are spot on and shows on the snap on tool - correct
reciever mounted in headliner - is in the correct poition & plugged in ok
each wheel sensor behind the wheel arches are facing the correct way and slotted into lr holding brackets facing the wheel of travel - wires are al ok


any thoughts ?????????

Can you view each reader? There is a reader (Ariel looking thing) inside each wheel arch liner. Could one of these be faulty? As you’ve covered off most other things…

Cam-Tech-Craig


A few weeks ago whilst inspecting the landgear - I thought about this, I was checking the brake shoes and other bits

You may have a good point.

The 5.0L supercharger was purchased new - so I know its never had any knocks/damage - ie never been into a workshop

That said 6 months ago
I was cleaning up Drivers front wheel and deceided to take off the Drivers Wheel arch completely -

NOTICED that the Sensor Paddle ( which should be clipped into a holder and ensures the Senor Paddle faces forward looking at the tyre - WAS HANGING at a 45 degree angle down ?
How and why it was like that I still do not know !

The Senor Paddle was washed and rehung in the correct forwad facing position

COULD The other 3 Senor pads be like this ( oh a Big Thank You to a Factory guys ) - as I have never know anyone get their hands on these wheel arches.

Anyway when I am off for 3 weeks that a job to investigate the other 3 wheek arches

Appreciate your time Cam-Tech-Craig










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Your very welcome sir… Report back in due course with your findings 👍🙏