Re: 1995 Firebird Lowbeam Issue
If you are measuring 7vdc reference to chassis ground on any lamp, that means the current is going through something else to get there. I think you have both connectors wired wrong. It looks like the current on the low beam circuit is going through both high and low beam filaments in series to ground, making them too dim. That would explain the 7v at one terminal and the partially lit high beam indicator. Then when you put the switch to high beams the low beam filaments alone get the current. It seems that all 3 wires are going to the wrong pins on each lamp. Right now, the low beam filament terminals are going to ground; the high beam filament terminals are going to the low beam circuit; and the ground/common terminals on the lamps are going to the high beam circuit.
Here is a very crude sketch
1998 Trans Am, LS1, Automatic, stock all the way.
Last edited by GaryDoug; 07-31-2013 at 05:00 PM.