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Home >> Mazda >> 2003 >> Tribute LX, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 61 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0133: Ho2S (Front) Circuit - Slow Response >> Detection Condition

Detection Condition

WARNING: This page is about a different car, the 2003 Mazda Protege5 and 2003 Mazda Protege. However, it is still accessible from the selected car via links, so may be relevant.

DTC is set when lean-to-rich and rich-to-lean average response time during HO2S inversion cycle period is slow. If response time exceeds threshold, PCM determines HO2S circuit has malfunction. PCM monitoring is performed during Drive Mode 3 - HO2S, HO2S heater & TWC repair verification. See DRIVE MODES  under SELF-DIAGNOSTIC SYSTEM. This is an intermittent monitor. MIL is illuminated when PCM detects malfunction condition in 2 consecutive drive cycles. Pending code is available if PCM detects malfunction condition during first drive cycle. Freeze frame data is available and DTC is stored in PCM memory.

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