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Home >> Lexus >> 2007 >> LS 460 >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 76 (Engine Control System - DTC) >> DTC P0405, P0406: EGRT Sensor >> Diagnostic Procedure >> 2. Check EGR Temperature Sensor Ground Circuit For Open And Short
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2. Check EGR Temperature 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 EGR temperature sensor terminal 2 and ECM terminal 67, TCM terminal 42.

    Refer to WIRING DIAGRAM.

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

OK or NG 

  1. OK: GO TO 4 .
  2. NG: GO TO 3.
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