Hi, does anyone know what the P912A connector is for? I bought a new PDP/wire harness from G/P last year and installed it when I swapped cabs on my M1079. It is a Gen0 PDP, the old harness I took off does not have this. It is a single dark gray wire coming out of the harness under the PDP at the first branch off, it goes into a 15-pin connector. I cannot find any reference for it in schematics or -24p. P912, is for CTIS/heater in the center cab position. If pictures are needed, I can try tomorrow. Thanks.