Conditions for Running the DTC

WARNING: This page is about a different car, the 2004 Suzuki Swift + and 2004 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.

The ignition is ON or the engine is operating.
The ignition 1 voltage is more than 10 volts.
DTCs P0480 and P0481 run continuously once the above conditions are met.