Vito battery replacement

[woodypup59]

2010 V6 Vito auto.

Today we were getting warnings about low battery volts (there is no "ign" Warning light) so it seems the new battery isn't charging as the voltage doesnt change when you rev it, but stays at 11.5 v.

We've heard some tale about a reset being required to tell the charging system that a new battery has been fitted.

Can anyone confirm ?

[woodypup59]

The alternator is pushing out 14 volts, so that seems sensible.
there is said to a "smart charging" relay which controls the alternator output.
In the main fuse box there is this lot, but unfortunately the handbook doesn't describe the relays.
Can anyone help ?

[woodypup59]

It turns this is a well known fault on V6 AUTOs.

Annoyingly on autos again there is no "ignition" warning light to give an early indication of trouble. Only once the battery is really low, does a warning of "low battery volts" flash up, at which point electrical stuff starts cutting out, followed by the engine cutting out. Luckily this happened near home.

The cable between the alternator and fusebox burns out under the engine, where there is some sort of connector.