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Home >> Infiniti >> 2004 >> M45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P0340: CMP Sensor (Phase) >> Diagnostic Procedure >> 5. Check CMP Sensor (Phase) Ground Circuit For Open And Short
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5. Check CMP Sensor (Phase) Ground Circuit For Open And Short

  1. Turn ignition switch OFF.
  2. Check harness continuity between CMP sensor (PHASE) terminal 1 and ground.

    Continuity should exist. 

  3. Also check harness for short to power.

OK or NG 

  1. OK: GO TO 7. CHECK CMP SENSOR (PHASE) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT .
  2. NG: GO TO 6.