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Home >> Nissan-Datsun >> 2004 >> Quest SL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System >> DTC P0403: EGR Volume Control Valve >> Component Inspection >> EGR Volume Control Valve >> With CONSULT-II
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With CONSULT-II

  1. Turn ignition switch OFF.
  2. Disconnect EGR volume control valve harness connector.
  3. Check resistance between EGR volume control valve terminal 2 and terminals 1, 3, terminal 5 and terminals 4, 6.
    1. Resistance: 20 - 24 ohm [at 20°C (68F°)] 

    If NG, replace EGR volume control valve.

    If OK, go to next step.

  4. Remove EGR volume control valve.
  5. Reconnect ECM harness connector and EGR volume control valve harness connector.
  6. Turn ignition switch ON.
    Fig 1: Checking Resistance Between EGR Terminal 2 And Terminals 1, 3, Terminal 5 And Terminals 4, 6
    G00775380Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Perform "EGR VOL CONT/V" in "ACTIVE TEST" mode with CONSULT-II.
    Fig 2: Displaying Active Test Screen
    G00775381Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Check that EGR volume control valve shaft moves smoothly forward and backward according to the valve opening steps. If NG, replace EGR volume control valve.
    Fig 3: Checking EGR Volume Control Valve Shaft
    G00775382Courtesy of NISSAN MOTOR CO., U.S.A.
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