Code 28 - Main O2 Sensor CKT (Rear Sensor)

Fig 1: Code 28 Flow Chart (SC300) Main O2 Sensor Circuit

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Fig 2: Code 28 - Inspection Using Oscilloscope (SC300) Main O2 Sensor Circuit

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Fig 3: Code 28 Trouble Code Detection Test (SC300) Main O2 Sensor Circuit

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