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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 375 (Engine Controls Self-Diagnostics) >> Diagnostic Tests >> DTC P1133 & P1153: Ho2S Circuit - Insufficient Switching - Bank 1 & 2, Sensor 1 >> Conditions For Setting DTC

Conditions For Setting DTC

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

The HO2S lean to rich and rich to lean switches are less than a calibrated value.