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Home >> Cadillac >> 2006 >> STS Base, 3.6 7, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Control System - 4.6L (LH2) - DTC P0010 To P0153) >> DTC P0133 or P0153 >> Conditions for Setting the DTC

Conditions for Setting the DTC

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The ECM detects that the amplitude of the HO2S signal does not match an expected value during the forced rich or forced lean portion of the catalyst diagnostic test for more than 2 seconds.

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