I have a ten year old starcraft bus on a GM 4500 chassis with a gas engine .The noise kill switch won't work . All the radio and heaters keep going no matter which way you push the switch . I see the switch is plug into a circuit board . There is a circuit board above the driver and lights will blink when I push the switch .How do I figure out what is wrong ? I am thinking bad switch
never worked on a Starcraft body bus, and the last GMC bus I worked on would've had a Detroit engine in it (8.1) if you had another switch I would try that , but if switch is bad one wouldn't think it would light up the panel above driver's seat, did a quick google search there is manuals online hope this helps
OEM trained in wiring and all engine platforms for over 20 years