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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 39 (Engine Control System Diagnosis - 1.6L (2 Of 3) (Except HEV)) >> DTC P0453: Evaporative Emission System-Pressure Sensor High Input >> Wiring Inspection >> Signal Circuit Inspection

Signal Circuit Inspection

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  1. IG KEY "OFF".
  2. Disconnect the FTPS connectors.
  3. IG KEY "ON" & ENG "OFF"
  4. Measure voltage between signal terminal of FTPS harness connector and chassis ground.

    Specification:  Approx. 0 V

  5. Is the measured voltage within specification?

    YES 

    NO