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.

DTC P0606 is not set.
The A/C is requested.
The ignition 1 voltage is more than 11.0 volts.
DTC P0645 runs continuously once the above conditions are met.