Thread: I've nanocomed my gearbox

Check the voltage of your starting battery...

Angus

checked battery voltage, all ok

Check to see if the gears are showing correctly on the dash, check its in Park firmly, turn off, lock it. wait a min or two and restart.

Voltage can do it as Angus said,
The gearbox computer can do it,
The inhibitor switch (gear selection sensor) can do it also.

The other thing that can trigger it is when the torque sensors get out of whack when you've given it a boot to pass etc and then back off.

Or sometimes they just do it to make life interesting.

Tried your advice but they keep flashing at me. The selected gear indicates ok for P,R,N,D but not for 1,2,or 3. Red leds on selector lever flash in time with green M & S light on the dash. Does the nanocom look into the gearbox computer?

AFAIK Nanocom doesn't talk to the Auto's ECU.

Move your Hi/Low (CDL??) lever and make sure it is firmly engaged in Hi and no CDL (if fitted)

Bit out there and I don't know if Nanocom can do this, but check the Td5 ECU doesn't think its now talking to a manual gearbox.

THe M+S (limp home mode) should self clear on the gearbox unless its being re-triggered by something. You may have to turn the car off and wait 20 minutes though.

I left it off & locked over night yet they still flash. Went for a drive & was supprised to learn what you ment by limp mode. Only one gear in low range & two I think in high, (3500rpm @ 100k's). Any hints on how to check if the engine thinks I installed a manual box. Thats what it will get if its not careful.

I have Rovacom and on the Disco you could change some settings for the Td5 ECU, pretty sure transmission was one of them. I've never played with a Nanocom, hopefully someone else might jump in here and help.

Hi all- my first post on your 1st class forum.
Been struggling for some weeks to sort out similar problems.
In my case, I had flashing M&S lights, but no display of gear selection on the instrument panel- and no red LEDs on the gear selector base.
Dealer concluded that WXYZ/selector switch was faulty.
However, I could see the switch working on Nanocom.
Turned out that in trying to trace a fault with the A/C I had sent a spike down the line- and the system had gone back to some form of default.
Nanocom showed up my TD5 auto as a petrol/manual. Reset it all using Nanocom and all is well [so far]

Back to the point- and more of a question. Assuming that the system agrees that the drive is auto- would it be safe to say that if the gear selection display is working, then the WXYZ switch must be OK.