Conditions for Clearing the DTC (ECM)
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM will command the indicator OFF after one trip in which the diagnostic test has been run and passed.
- A history DTC will clear after 40 consecutive warm-up cycles have occurred without a malfunction.