Conditions for Running the DTC

WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.

DTC P0634 is not set.
TCM temperature is between 0-240°C (32-464°F) for 0.25 s.
Ignition voltage is 9-32 V.
DTC runs continuously when above conditions are met.