Conditions for Setting the DTC

WARNING: This page is about a different car, the 2008 Suzuki Swift +, 2008 Pontiac Wave, and 2008 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.

The transmission control module (TCM) detects no signal from the park/neutral position (PNP) switch circuit for 28 seconds continuously from short of detection.
No signal from the TR switch circuit.
Vehicle speed is 30 km/h (19 mph) or greater.