Action Taken When the DTC Sets: P1831

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Cadillac Escalade EXT. However, it is still accessible from the selected car via links, so may be relevant.

DTC P1831 is a Type A DTC.
The TCM turns OFF all high side drivers.
The TCM turns OFF all solenoids.
The TCM commands maximum line pressure.
The TCM freezes transmission adaptive functions.
The TCM commands the TCC OFF.
The TCM allows the vehicle to operate in transmission protection mode.