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Home >> Cadillac >> 2006 >> STS Base, 3.6 7, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Control System - 4.4L - DTC P0010 To P0175) >> DTC P0030, P0036, P0050, P0053, P0054, P0056, P0059, P0060, P0135, P0141, P0155, or P0161 >> Circuit/System Description >> DTC P0030

DTC P0030

WARNING: This page is about a different variant/trim than selected.

The control module monitors the voltage on the HO2S heater low control circuit for heater fault diagnosis. If the control module detects that the HO2S heater low control circuit voltage is not within a specified range, DTC P0030 sets for HO2S 1.

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