GMC TSB #PIT4474D
2007 GMC Sierra 2500
Affected Component: EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)
- Summary
- This Preliminary Information communication provides information to the technician about vehicles that have navigation or radio screen is blank or flashes on and off, no sound from speakers, and rear DVD screen inoperative. Technician will find Diagnostic Trouble Codes B1265, B1288, or B1289. Technician will need to repair circuit 7066.