Conditions for Running the DTC
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
B1370 01
Ignition switch is in the OFF or ACC positions.
B1370 06, B1380 01, B1441 01, B1441 06
Ignition switch is in the START position.
B1380 06, B1440 00
Ignition switch is in the RUN position.