Spiffy
Well-known member
- Thread starter
- #1
I replaced the main battery.
My interior courtesy lights still won't come on when I open the door. Battery is at 14.3 voltage with power supply on.
The lights come on when I start the truck. They shut off when I close the door. How do we use diagnosis on the under seat battery? Can fdrs read it?
I know nothing about the porpoise of that battery. Is it also responsible for the interior lights?
My interior courtesy lights still won't come on when I open the door. Battery is at 14.3 voltage with power supply on.
The lights come on when I start the truck. They shut off when I close the door. How do we use diagnosis on the under seat battery? Can fdrs read it?
I know nothing about the porpoise of that battery. Is it also responsible for the interior lights?
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