I bought a 1 seat transit minibus (61 plate) last October with a view to converting to a camper. The vehicle came with a VDO 1381 displaying mileage in KM which all corresponds as it should to MOT history for bus. The mileage does not display on the display behind steering wheel. The tacho has now died. It wasn't the backup battery. It shows 3.2 v. It wasn't the vehicle being drained of battery. Just one morning, started up and it was dead. No illumination. No data. The plug live feed has 12v.
I sent the tacho off to a tacho specialist in Cheshire last week and he tested it. Said the battery on it was fine but it looks like it has suffered an internal failure of sorts and it is goosed.
All I want is for the odometer mileage to display on the factory display. How can this be done? the tacho is now out of it and no longer plugged in and the bus runs fine. It shows trip counter turning no problem. Speedometer works fine. I just need the overall mileage back as I understand this is an MOT failure and it is due in October.
Any advice would be very welcomed.
I don't know why this is proving to be so bloody difficult. It's not like it is a reinvention of the wheel.