GMC TSB #PIT5212
2013 GMC Sierra 2500
Affected Component: ELECTRICAL SYSTEM
- Summary
- This Preliminary Information communication provides information to the technician about vehicles with a Service Engine Soon Malfunction Indicator Lamp on. Technician will find a Diagnostic Trouble Code P2636 set. Technician will find that unable to command the fuel system transfer pump "On" with the scan tool. Technician will build the vehicle using 2012 model year.