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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Automatic Transaxle - 4T80-E - DTC P1811 To DTC P2764) >> DTC P1811 >> Circuit Description

Circuit Description

WARNING: This page is about a different variant/trim than selected.
IMPORTANT: Refer to the FLUID PASSAGES 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.