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Home >> Mazda >> 2002 >> B4000 Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0131 Or DTC P0151 >> Detection Condition
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Detection Condition

DTC P0131 indicates HO2S11 (front right V6 or front 4-cylinder) has generated a negative voltage.

DTC P0151 indicates HO2S21 (front left) has generated a negative voltage.

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