Conditions for Running the DTC

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

Voltage supplied to the module is in the normal operating voltage range of 9-16 volts.
Diagnostic trouble codes U1300, U1301, and U1305 do not have a current status.
The module operation or the vehicle power mode requires serial data communication to occur.