Circuit Description
WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
Refer to the 2007 Transmission Unit Repair Manual (TURM) for Fluid Flow illustration.
An adaptive modifier modifies the transmission line pressure. The adaptive modifier controls the shift execution time. This DTC monitors the time required to accomplish the shift. If the shift takes longer than 0.65 second, and the adaptive modifier cannot shorten this time, then a counter iterates.
DTC P1811 sets when this counter reaches its limit. DTC P1811 is a type C DTC.