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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 42 (Engine Control System Diagnosis - 2.0L (2 Of 3) (Except HEV)) >> DTC P0453: Evaporative Emission System-Pressure Sensor High Input >> Wiring Inspection >> Signal Circuit Inspection

Signal Circuit Inspection

WARNING: This page is about a different variant/trim than selected.

■ Check for Open in Signal Circuit 

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

    Specification:  Approx. 5 V

  5. Is the measured voltage within specification?

    YES 

    • Go to next step below.

    NO 

■ Check for Short to Power in Signal Circuit 

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

    Specification:  0 V

  5. Is the measured voltage within specification?

    YES 

    • Go to next step below.

    NO