Diagnostic Aids
WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
After clearing the DTCs, the ECM must be completely powered down or the DTCs will not be cleared.
The engine will crank over for 1-3 s, resulting in a no-start condition, if DTCs P0335, P0336, P1AC6 or P1AC7 are set.