Toyota Trucks: 86 22r volt light on

Could someone tell me please the first things to check when this occurs.
Its my buddys truck, and he immediatly replaced the alternator thinking this
was the problem, as the battery was not charging properly.
Truck now has new battery and alternator.
Thanks

Check the IGN fuse. Mine blew and stopped the alternator charging. Quick clue in
my case was erratic gauge (fuel/temp/tacho) operation, but the gauges seem to
return to normal when my lights were turned on. Failing that there is a
regulator unit whick controls the rate of charge. Mine is on the passenger side
of the engine bay behind the air cleaner box. Its about 2.5" x 1.5" x 2" black
box probably marked with nippon-denso or ingrams on it. Just for your info I
have a right hand drive. I dont know if that will make much difference but
seeing as the americans havent figured out what side of the road to drive on yet
all their cars seem to have componants installed on the opposite side of the
vehicles.LOL
No offence intended to any americans reading this.
Hope this helps
Kevin

"David N. Emmet" wrote: