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What are you trying to fix so i can send specific diagrams?
What alarm, and which cummins engine 5.9, or 8.1
buzzer module part# XXXXX
a/c compressor overtemp input
power feed (hot at all times)
a/c compressor over temp indicator control
courtesy lamps on input
park brake on input
low air tone input
abs fault indicator control
power feed (hot in start or run)
park lamps on input
park brake warning switch input
We have every thing isolated exept for power feed and ground.
Still have 3.9 amp draw
Also tried a new power feed
Shows a perfect ground
I am going to research this, but will not respond until later tonight, I opted out so if anyone else can answer quicker they will, if not I will send you pictures tonight.
We got it just now got it going . Thanks
Multiple problems key switch,light switch,&a company radio.