Conditions for Running the DTC: P2626

WARNING: This page is about a different car, the 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

The ignition voltage is between 10.7-8.1 volts.
The engine is running.
Fuel cut-off is true.
The estimated exhaust temperature is less than 780°C (1,436°F).
The HO2S 1 heater is at operating temperature.
DTC P2626 runs continuously when the above conditions are met for 2 seconds, or when the above conditions are met for 10 minutes if the fuel level is low.