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Elantra Value Edition
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System Diagnosis - 2.0L (3 Of 3)
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DTC P2237-00: O2 Sensor Pumping Current Circuit/Open (Bank 1 Sensor 1)
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Specification
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Signal Waveform & Data
Signal Waveform & Data
Courtesy of HYUNDAI MOTOR AMERICA
Fig.1) Normal waveform of front Heated Oxygen Sensor(S1) (engine idle)
CH A1 (Nernst cell voltage), CH A2 (Pump cell voltage), CH B1 (Common ground), CH B2 (Compensative resistance)