OBC HAS WENT AFF ITS HEED!!

[EThreezero]

Right my comp has decided to go completely radiorental hope someone can help. When ive got the key at position 1 i can set the time, date and limiter and everything generally functions ok including the ind stalk but when i start the car the fookin things totally functionless no buttons or the stalk will work i just get the time frozen at whatever time it was set at and the display distorts a touch. When i turn the car off and on again everythings gone and it needs set again oh and the temp shows -30 and flashes eratically. Is it unclebucked????

[EThreezero]

nobody?

[Incitatus]

This probably doesn't help much but my OBC seems to crash every few days when it forgets everything. I've found that if I don't set the time it works fine.

Not scientific I know but it might be worth a try without setting the time...

[EThreezero]

Least u gave some input geezer cheers!

[Brianmoooore]

Getca a voltmeter across the battery terminals with the engine running.

[Sidrick]

Mine will go spasticated if I change the settings while the engine is running.

All other times it's fine.

[votivequagmire]

Some of the symptoms you describe have sometimes been caused by connection problems for signal feeds. E.g. dry joints, oxidised connectors caused by damp and/or condensation. Even earth joints sometimes.

Have you checked all feeds for continuity?

I haven't had one of these apart yet so can't comment on anything internal but I would like to have look inside one. All on here are probably aware of the symptoms which arise from the two rechargeable batteries going u/s, which power the dashboard clocks and service lights.

But with the ignition switch position in the equation, it sounds like it could be a feed problem. Does all the electrics work on the car with engine not running but ignition on?