This is one of the reasons I'm converting mine to a regular GPCM. for the fed LB7s it's just two relays.....no more pos GPCM. I'm taking mine in next week to get my cali one replaced, then I'll sell it.
I have an 04 California truck. Can I replace mine too like what you are going to do? I'm none too familiar with the gpcm other than it being in the way all the time