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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Control System - QG18DE) >> DTC P0506: ISC System >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK INTAKE AIR LEAK 
    1. Start engine and let it idle.
    2. Listen for an intake air leak after the mass air flow sensor.

    OK or NG 

    1. OK: GO TO 2.
    2. NG: Discover air leak location and repair.
  2. REPLACE ECM 
    1. Stop engine.
    2. Replace ECM.
    3. Perform ACCELERATOR PEDAL RELEASED POSITION LEARNING .
    4. Perform THROTTLE VALVE CLOSED POSITION LEARNING .
    5. Perform IDLE AIR VOLUME LEARNING .
      1. INSPECTION END