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Home >> Hyundai >> 2017 >> Accent Value Edition >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System Diagnosis (3 Of 3) >> DTC P2251: O2 Sensor Reference Ground CircuitOpen (Bank 1 Sensor 1) >> Specification >> Signal Waveform & Data
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Signal Waveform & Data

Fig 1: Screen Display - Signal Waveform Of Sensor Current Pump (1 Of 2)
G12017139Courtesy of HYUNDAI MOTOR AMERICA
Fig 2: Screen Display - Signal Waveform Of Sensor Current Pump (2 Of 2)
G12017140Courtesy of HYUNDAI MOTOR AMERICA

Waveform of sensor Current Pump at IG KEY "ON" and Engine running. It fluctuates between 2V and 3V periodically.

Waveform of sensor Virtual Ground Output at IG KEY "ON" and Engine running. 2.5V is displayed.

Waveform of sensor Current Adjust at IG KEY "ON" and Engine running. It fluctuates between 2V and 3V periodically. Waveform of sensor Nearest Voltage at IG KEY "ON" and Engine running. 2.9V is displayed.