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Re: 330 Peterbilt/ISC/Allison PacBrake issue
Posted to HD/Fleet Forum on 3/11/2011

Hi again Matt,

I'm lost trying to follow the circuit from the air solenoid. I've search for relays or in-line fuses that may be related and find nothing. I found the Allison controller behind the dash and don't see any VIM wired into it (but I could be missi... Login to read more.