Operation CHARM: Car repair manuals for everyone.

Voltage Regulator

System Operating Voltage
Models equipped with 50/120 Amp Alternator.
Voltage Setting 14.9-15.9 at -20
Note: At Test Temperature
13.9-14.6 at 80
Note: At Test Temperature
13.3-13.9 at 140
Note: At Test Temperature
13.9
Note: At Above Test Temperature of 140 deg F (60 deg. C)