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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1858 (Engine Controls And Fuel - 2.2L (L61) - DTC P0031 To DTC P0172) >> DTC P0031, P0032, P0037, or P0038 >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0031, P0032, P0037, or P0038

Circuit Short to Ground High Resistance Open Short to Voltage Signal Performance
HO2S Heater Voltage Supply Opens fuse P0031, P0037, P0135, P0141, P0031, P0037, P0135, P0141 - P0135, P0141
HO2S Heater Low Control P0031, P0037, P0031, P0037, P0135, P0141 P0031, P0037, P0135, P0141 P0032, P0038, P0135, P0141 P0135, P0141
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