Isuzu Repair: 96 Rodeo warning lights stay on, air wont work, voltage drop test, charging system

Question
I have a problem similar to Jason (6/8/08).  My brake, battery & 4x4 lights stay on & the air doesn't work unless the engine exceeds 2300 RPM.  Slow down & lights come back on & air quits.

Answer
Well it sounds like a charging problem or the alternator is going bad Tim. both the a/c system and the charging system probably should have a voltage drop test done as well if you prefer. Although Autozone checks and diagnosis trouble codes for free and if that doesn't work out foe some reason I am more than happy to help you okay?