Dash Display not showing gear selected

Quote:

---

Originally Posted by clubagreenie

This sounds more like a key issue. If I use the spare key (a cut key and fob just for the buttons) and don't start it immediately then the immobiliser will reset and I need to either swipe the fob up near the ring around the barrel or press the unlock button again. This adjusts the flash pattern of the LED and it will start. If it's not reset then it'll turn over but not start.

---

This is probably the "passive immobilization" which can be turned of with nanocom or hawkeye, if you don't like it. It's supposed to be off by default on discos over here, but was turned on by accident on a few and they had to release a TSB for it. I guess in Australia is turned on by default.

http://www.landroverclubvi.com/uploa...8604nasf_2.pdf

Quote:

---

Originally Posted by OffTrack

I'm surprised that the BCU memory wiped due to a loose terminal. The settings are retained even when the unit is removed from the vehicle. So they should be retained even with dodgy power supply.

---

I've not seen the BCU have it's memory wiped (though it might be nice on occasion), but recently someone posted where the ECM lost it's security code sync from the BCU. The code it gave suggested a new ECM had been fitted... it shouldn't really be possible to get the ECM to go back to new status as far as I know... at least not with normal diagnostic tools.

01' Wont start - crank but no fuel or spark - Land Rover Forums - Land Rover Enthusiast Forum

Quote:

---

Originally Posted by warren9981

Hi, I have a 2003 D2a update TD5 Auto.
Problem I have is that the LCD display (ODO and TRIP) is not showing which gear has been selected. Checked with Nanocom and no faults are showing. Vehicle drives normally. Also the mode button is not displaying on the dash.
Have searched Aulro and google but nothing comes up except the WXYZ switch on the side of the Auto transmission. This also checks out ok with the Nanocom.
Any ideas of why this is occurring.

---

Your problem (although it looks to now be resolved) is a carbon copy of what I had around 6 months back.

I didn't start a new thread but IIRC I tacked my query onto another "Auto transmission problem thread". I don't recall getting too many replies and I put that down to it being a rare occurrence. Even some of the international/UK/US forums were searched without success.

I had no issues with the performance of the transmission (except for what I believe is a sticking/not 100% functional shift solenoid on the upshift from 2nd to 3rd).

I put a new battery in as the old one was getting on in years. It performed marginally when load tested. I realise now that running my fridge off it for hours when parked may have shortened its lifespan. I would park it up after a long drive for a couple of hours and leave the fridge on with its low voltage cut-out set to 11.5 volts IIRC. There was enough charge to get the vehicle started no worries but doing this may have been bad for the battery as it was just a standard lead-acid starting battery. There's now an Optima deep cycle/start combination battery in its place and it's been fine.

It would have been a couple of months ago that I recall looking down at the odometer and noticing that the gear indicator had reappeared - it was months after the new battery went in. Given that the two didn't seem to correlate I just gave up trying to troubleshoot the issue.

I'm glad yours worked itself out as mine seems to have done. Next time it disappears I'll be checking those battery terminals in the first instance.

I wonder if anyone has any ideas why the BCU seems to sometimes magically change the settings for Auto/Manual and Diesel/Petrol? Anyone?