Conditions for Running the DTC

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

DTC P2107, P2108 are not set.
The ignition is in the crank or run position.
The ignition voltage is more than 5.23 volts.
The communication between the TAC module and the powertrain control module (PCM) must be valid.