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Home >> Chevrolet >> 2013 >> Tahoe LS, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 2022 (Engine Controls/Fuel - 5.3L, 6.0L, 6.2L - DTC P0442 To DTC P3449 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P1400 >> Diagnostic Aids

Diagnostic Aids

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Any loading of the engine that lowers engine RPM, such as with partial application of the clutch, A/C cycling etc., during the first 120 seconds of engine runtime may set this DTC.

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