Memory problems

[Fusion1]

Another little niggle I'm trying to sort, my dash setting don't seem to store any setting I put in, all can be set while power on ie. Pod light brightness, aircon on, and also I have no milage reading as keeps setting itself back to zero. Is this the main ecu or the dash ecu. Also get error code 146 at startup and keeps popping up when I'm driving.. Any help would be really appreciated. Car running great and all dials work as they should.

Many thanks

[shep1001]

I have code 146 as display FRAM (Ferroelectric Random Access Memory?) corrupt. Not sure if this helps

Shep

[Fusion1]

Do you think this is a problem with the dashboard euc or the main ecu, also where is the battery that gives the 146 error.
Cheers

[tvrcos]

I have exactly the same problem on my sagaris. Same error code, always i have to activate ac new after starting the engine.

[VARLEYHYD]

1st try changing the memory battery in the dash ecu.

2nd return to TVR Power for re programming etc.

G

[tvrcos]

Hi,

tried to find the back up battery, removed the dash pod, couldn`t find a back up battery. Where is it?

[NCE 61]

The dash ECU is in the drives side footwell RH side behind a removable panel:-



Remove the lid & you will see the coin type battery

[Fusion1]

Maybe sent for the wrong battery the as just ordered one off eBay which is a battery back up chip - so where does this go? Is the one in the dash ecu a normal flat round battery. Confused now :-(

[shep1001]

Fusion1 said:

Maybe sent for the wrong battery the as just ordered one off eBay which is a battery back up chip - so where does this go? Is the one in the dash ecu a normal flat round battery. Confused now :-(

IIRC its a coin cell CR2032

Shep

[Fusion1]

Just changed the cell battery in the dash ecu and no change but now got clock failure error 149 ahhhhhh. So will change the ecu ram battery when it arrives. Tvr's Don't you just love them :-)

[sim shane]

Sorry for bringing up an old topic but I have been searching for a picture of the wiring on the dash ecu everywhere and this is the best I could find so far

http://i2.photobucket.com/albums/y36/NCE_61/DSCF04...

If anyone on here has a better pic of the four plugs, or even better a pinout or wiring diagram for the dash ecu I would be very appreciative

I am currently in the early stages of attempting to install a Tuscan 2 dach pod to my cerbera, I have the pod and the ecu but I have a fair bit of investigation on the wiring to do before I can go ahead.

Thanks Shane..