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2009
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Prius Base
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Repair and Diagnosis (Single Page)
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Engine Performance
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Engine Control System
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SFI System
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DTC P0031 Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1); DTC P0032 Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)
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Component Operating Range
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Component Operating Range
COMPONENT OPERATING RANGE
A/F sensor heater current
1.8 to 3.4 Ω at 20°C (68°F)