Conditions for Running the DTC

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.

P0815 or P0816

DTC P0826, P1761, P182E, P1876, P1877, or P1915 is not set.
Time since the range change is 1 s or greater.
Engine speed is 400-7, 500 RPM for 5 s.
Ignition voltage is 8.6-32 V.

P0826

DTC P1761 is not set.
Engine speed is 400-7, 500 RPM for 5 s.
Ignition voltage is 8.6-32 V.