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Home >> Hyundai >> 2017 >> Azera Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC P2122: Accelerator Position Sensor 1 Signal Circuit Low Input >> W/Harness Inspection >> Power Circuit Inspection
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Power Circuit Inspection

Check Voltage 

  1. IG "OFF" and disconnect APS connector.
  2. IG "ON"
  3. Measure voltage between APS1 power terminal of APS harness connector and chassis ground.

    Specification:  Approx. 5V

    Fig 1: Measuring Voltage Between APS1 Power Terminal Of APS Harness Connector And Chassis Ground
    G12090184Courtesy of HYUNDAI MOTOR AMERICA
  4. Is the measured voltage within specification?

    YES 

    NO