Hello. I have 1999 model ford focus ambiante.
my vehicle is trying to charge the battery at 15.5 volts.
Conjector changed twice with the original, but the problem was not solved.
The alternator has changed to its original (denso brand) but the problem is not solved.
my car battery has changed but the problem has not been fixed
my vehicle's ecu has changed but the problem still didn't fix.
help me. what else can i do for this malfunction???I see the line voltage incorrectly on my vehicle's gauge. pictures are attached. what should I do and where to check.

 

It can be normal for the smart charge voltage.

What is the issue? Are you in the correct section in the dash diagnostic?

Martin

 

There is a fuse for the charging system above the fuse box inside the car, you need to remove the fuse box in order to access it.

 

Hi I don't know if this would help you with your issue with your batter. I had problem with my battery loosing it charge, even on a new replaced battery. Until I ask the member on this site and was told that the focus needs a calcium battery and to disconnect the (pony tail) smart charge lead from the alternator which I did and I have had no more issue with my battery loosing its charge. (focus 1.5 2002)