Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

"SC" is displayed in the DIC by the IPC when the ambient air temperature sensor resistance value is less than the lowest ambient air temperature sensor resistance threshold and DTC B0160 is present.
"OC" is displayed in the DIC by the IPC when the ambient air temperature sensor resistance value is greater than the highest ambient air temperature sensor resistance threshold and DTC B0161 is present.