service'4 wheel drive' light came on?? [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: service'4 wheel drive' light came on??


g.corral
07-09-2005, 02:33 AM
what should i do??? thanks....

GMCSID
07-09-2005, 01:16 PM
Take it in and get it diagnosed. Some possible problems are encoder motor position sensor, selector switch, or programming. The only way to know is to find out what code set.