SYS light
03-24-2016, 06:43 PM
#1
Instructor
Thread Starter
SYS light
Battery went dead so I jumped the car, being careful to ground to the engine and not the battery. Once started I checked voltage which varied from 13.7 to 14.0. Noticed SYS light flashing. Waited about a half hour until voltometer gauge dropped and then stopped engine and attempted to restart. It only clicked.
Battery is new but I hadn't started it in awhile. Opinions?
Battery is new but I hadn't started it in awhile. Opinions?
03-24-2016, 06:52 PM
#2
Fully charge the battery with a charger. Can do damage the way your doing it. Make sure connections are good and clean. If the battery froze when dead might be gone.
Last edited by antfarmer2; 03-24-2016 at 06:56 PM.
03-24-2016, 07:05 PM
#3
Pro
The alternator will not fully charge a dead battery. You highly run the risk of damaging the car's electronics not to mention the alternator.
Last edited by jts90vette; 03-24-2016 at 07:06 PM.
03-24-2016, 08:47 PM
#4
Race Director
A flashing SYS light indicates an electrical issue.
And the number one cause is a discharged battery.