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Home >> Nissan-Datsun >> 2008 >> Quest Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS P0137 Through P0443 >> DTC P0403 EGR Volume Control Valve >> Component Inspection >> EGR Volume Control Valve >> With CONSULT-III
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With CONSULT-III

  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.

    Resistance: 20 - 24 Ω [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 Volume Control Valve Terminal 2 And 1, 3, 5 And 4, 6
    G04905509Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Perform "EGR VOL CONT/V" in "ACTIVE TEST" mode with CONSULT-III.
  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 2: Identifying EGR Volume Control Valve
    G04905511Courtesy of NISSAN MOTOR CO., U.S.A.
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