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Home >> Cadillac >> 2006 >> STS Base, 3.6 7, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine Control System - 4.6L (LH2) - DTC P0690 To P2135) >> DTC P167A or P167B >> Description

DTC P167A or P167B: Description

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This diagnostic identifies a fault in the communication system between the integrated circuit that operates the wide band heated oxygen sensor (HO2S) and the main microprocessor. If a fault is identified in the communication system, DTC P167A or P167B will set.

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