Why do I show system low voltage?
Have a 2008 Ram 2500 with a 6.7
cummins that has a p0562 code
(system low voltage). Had a bad
alternator (replaced), had a bad
regulator (replaced). Now it has this
code. The drivers side battery is
charging at 18 volts while the
passenger side is charging at 15 volts.
Tested the batteries and both show
good, how ever if you remove the
drivers side battery while running it
kills the truck. Not sure what is wrong.
HELP!!!
PS: Picture of what shows on the dash.