Warning Code : 250 , Clock Failed

[Espritment]

A Warning Code : 250 , Clock Failed is now displaying on my Tamora screen after ignition is switched on. I have not run it for a while and have had the battery on charge for one hour a day, to prevent the dead battery syndrome from some unknown discharge after about 4 weeks. Someone has suggested that it may be from overcharge. After reading some articles on the forum , it sounds like it may also need a CR2032 battery replacement on the POD behind the display.
Has anyone experienced this as well, and could you please cast some light on this. Thank You.

[Tom The Cat]

Espritment said:

A Warning Code : 250 , Clock Failed is now displaying on my Tamora screen after ignition is switched on. I have not run it for a while and have had the battery on charge for one hour a day, to prevent the dead battery syndrome from some unknown discharge after about 4 weeks. Someone has suggested that it may be from overcharge. After reading some articles on the forum , it sounds like it may also need a CR2032 battery replacement on the POD behind the display.
Has anyone experienced this as well, and could you please cast some light on this. Thank You.

Hi there


the Battery is not behind the Display!
The Display shows only the Data who comes from the Dash ECU!
you have to check the Dash ECU , she is in the Drivers Foot well right.
G. Varley wrote the Bible for T Cars and Sag. have a look ... http://www.varleyhyd.com/FJ062.asp#Fault%20codes
If the Battery is down , I guess you'll have a Problem from now on , unfortunately.
I'am not quite sure , but , it can be that you lost "Programming Information" of the D-ECU!
But , somebody here in the Forum knows this Person , who can Fix it ...maybe 100£ ...
To find more, use the search function ... "Dash ECU etc ...."
good luck
TTC

[Hollowpockets]

It's a nice day so the sag is out for some attention, I've also got clock failed message, error 149. For some reason a couple of months ago the windows stopped working so unplugged and refitted the ecu in the drivers footwell and the clock error has been there ever since.

[Hollowpockets]

Edited by Hollowpockets on Sunday 21st July 14:00

[Hollowpockets]

Edited by Hollowpockets on Sunday 21st July 14:01

[Tom The Cat]

Hollowpockets said:

It's a nice day so the sag is out for some attention, I've also got clock failed message, error 149. For some reason a couple of months ago the windows stopped working so unplugged and refitted the ecu in the drivers footwell and the clock error has been there ever since.

Hi HP,
yes a nice little car, that you have;)
i didn't understand , which ECU did you disconnect?
Dash or Engine?

If you have a little talent , take the Screwdriver in your Hand
open the Box and measure the Voltage of the CR2032 Battery.

But DON'T pull them out !!!
otherwise you'll lost Data

T'am not quite sure ....I think if the "Key is turned to Start" Ignition ON,
than it should have Power., and you can change the Battery ...
Only using BEST Quality Battery's!!!

I have to do it too.

HTH

TTC

[Espritment]

Thank you all for the good advice, particularly about somehow keeping voltage to the circuit. If the ignition is on and it does supply power to the circuit, then one should also be able to measure a different voltage on the same points, indicating that there is an alternative supply. This should then make it secure to change the battery without losing data. Does anyone know what data will be lost, and if it is critical. Perhaps just dash settings that could be re-set ?

An alternative would be to use crocodile clips to still feed the circuit with power from a third battery of the same voltage, while the original battery is removed for replacement.

I am sure that all this will need to be done with the utmost care.

[NCE 61]

I had the dash ECU battery on my Tuscan (wavy dash model) changed last month by STR8SIX as the clock had not been working since the dash ECU was disconnected some years ago. They changed the battery with the ignition on otherwise you can loose the ODO mileage.

[Espritment]

Thank you for clearing this matter of the Ignition needing to be switched on at the time of replacing the battery.

I must assume that at the time of changing the small PCB battery, it will probably also clear the clock failure warning fault that is presently displayed at the time of switching the ignition on.

I am in South Africa and highly appreciate your input and advice.