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Home >> Mazda >> 2003 >> 6 s, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Controls [Self-Diagnostics 2.3L]) >> Diagnostic Tests >> DTC P0032: Front Ho2S Heater Circuit - High Input >> Detection Condition
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Detection Condition

WARNING: This page is about a different variant/trim than selected.

PCM monitors front HO2S heater control signal at PCM 30-pin harness connector terminal "4A" (White/Black wire). If PCM turns front HO2S heater on but front HO2S heater circuit has high voltage, PCM determines that front HO2S heater circuit has malfunction. Front HO2S heater is controlled by a duty signal. This is a Continuous Monitor (O2 sensor heater). MIL illuminates if PCM detects malfunction condition in two consecutive drive cycles or in one drive cycle while DTC for same malfunction has been stored in PCM. PENDING CODE is available if PCM detects malfunction condition during first drive cycle. FREEZE FRAME DATA is available. DTC is stored in PCM memory.

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