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Home >> Hyundai >> 2017 >> Azera Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 3) >> DTC P0452: Evaporative Emission System-Pressure Sensor Low Input >> Component Inspection

Component Inspection

Check FTPS 

  1. IG "OFF" and connect GDS to DLC (Data Link Connector).
  2. Monitor "FTPS" parameter on service data.

    Specification: 

    Pressure (kPa) Output Voltage (V)
    -6.67 (26.7VAC) 0.5
    0 2.5
    6.67 (-26.7VAC) 4.5
  3. Is the "FTPS" parameter on the service data O.K?

    YES 

    • Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM and go to "Verification of Vehicle Repair " procedure.

    NO 

    • Substitute with a known - good FTPS and check for proper operation. If the problem is corrected, replace FTPS and go to "Verification of Vehicle Repair " procedure.