lights dim and abs light on

[westtxguy]

When i first start my truck the lights are dim, the abs light comes on, and the radio does not work for 30sec. to a minute then it all works fine. Any ideas as to what could cause this. My truck has the double alternator setup if that matters.

[asian195]

check to see i your batteries are good. might only be holding enough amps to start the truck, then take awhile to charge up to make everything else work properly. my lights would dim while driving down the road, when only one of my batts was bad.

[westtxguy]

batterys tested good today any more ideas?

[ianstew]

what voltages are you getting while it's doing this?