Conditions for Setting the DTC
WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
P182A
The IMS A signal is low for more than 4 seconds when the vehicle is in DRIVE.
P182C
The IMS B signal is high for more than 4 seconds when the vehicle is in DRIVE.
P182D
The IMS P signal is low for more than 4 seconds when the vehicle is in DRIVE.
P182E
The IMS signal is invalid for more than 4 seconds.
P182F
The IMS C signal is high for more than 4 seconds when the vehicle is in DRIVE.
P1915
The IMS signal does not indicate PARK or NEUTRAL for more than 1 second when the engine is cranking.