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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P0453: EVAP Control System Pressure Sensor >> Diagnostic Procedure >> 7. Check EVAP Control System Pressure Sensor Input Signal Circuit For Open And Short
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7. Check EVAP Control System Pressure Sensor Input Signal Circuit For Open And Short

  1. Check harness continuity between ECM terminal 110 and EVAP control system pressure sensor terminal 2.

    Refer to Wiring Diagram.

    1. Continuity should exist. 
  2. Also check harness for short to ground and short to power.

OK or NG 

OK : GO TO 9.

NG : GO TO 8.