Jason Thompson

I have a 2005 GMC Sierra 1500 SLT Crew Cab, 5.3L LM-7 (T) engine code, Automatic transmission. The ABS Light and brake light is on, and the A/C blower motor is not working. This is an intermittent problem. I have change the ignition switch twice and problem continue, I checked all the body grounds that I have seen and verified no burnt wires on several of the fuse blocks. Any input is appreciated. Thank you.