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Home >> Chevrolet >> 2007 >> TrailBlazer 4.2 S, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 4.2L - DTC P0135 To DTC P0420 >> DTC P0137 >> Conditions for Setting the DTC

Conditions for Setting the DTC

The PCM detects that the HO2S 2 parameter is less than 43 mV.
DTC P0137 sets within 150 seconds when the above condition is met.

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