Truck Repair: 2000 peterbilt low air brake light staying on, electric switches, kick panels

Question
my 2000 pete 379 day cab 550 cat  low air brake light stays on the brakes are fine they fill up with out a problem i drain my tanks daily can u point me in the right direction before i bring to a garage Thank youboj7v

Answer
Hi mike,
pull the kick panels off behind the pedals. located directly in front of the throttle pedal is an aluminum air manifold that contains the air/electric switches for your brake lights low air etc... find the one for low air (usually has a tag hanging off the wires) check for continuity through it with your air pressure above 80psi. it should be open. if not replace it.

good luck,

Matt