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Home >> Lexus >> 2007 >> LS 460L >> Repair and Diagnosis >> External Pages >> Different car >> Section 76 (Engine Control System - DTC) >> DTC P0453: EVAP Control System Pressure Sensor >> Diagnostic Procedure >> 5. Check EVAP Control System Pressure Sensor Ground Circuit For Open And Short
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5. Check EVAP Control System Pressure Sensor Ground Circuit For Open And Short

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connector.
  3. Disconnect TCM harness connector.
  4. Check harness continuity between EVAP control system pressure sensor terminal 1 and ECM terminal 67, TCM terminal 42.

    Refer to WIRING DIAGRAM.

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

OK or NG 

  1. OK: GO TO 7 .
  2. NG: GO TO 6.
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