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2011
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Impala LS, 3.9 M
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Repair and Diagnosis
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Different variant/trim
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Section 21 (Automatic Transmission - 4T65-E - DTC PO218 Through DTC P2534)
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DTC P1811
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Action Taken When the DTC Sets
Action Taken When the DTC Sets
WARNING:
This page is about a different variant/trim than selected.
DTC P1811 is a type C DTC.
The TCM commands maximum line pressure.
The TCM freezes transmission adaptive functions.