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Home >> Infiniti >> 2001 >> I30 Base, RE4F04W >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Air Induction Systems >> Variable Induction Air Control System >> I30, Maxima, Pathfinder & QX4
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I30, Maxima, Pathfinder & QX4

  1. Start engine and warm to normal operating temperature. While quickly increasing engine speed to 5000 RPM, check if power valve actuator rod moves. See Fig 1 or Fig 2 . If rod moves, system is okay. If rod does not move, go to next step.
  2. Turn ignition off. Disconnect Variable Induction Air System (VIAS) control solenoid valve harness connector. See Fig 3 or Fig 4 . Turn ignition on. Measure voltage between ground and VIAS control solenoid valve harness connector terminal No. 1 (Red/Yellow wire). If battery voltage exists, go to next step. If battery voltage does not exist, repair open or short circuit. See WIRING DIAGRAMS article.
  3. Turn ignition off. Disconnect ECM harness connector. See Fig 5 or Fig 6. Check continuity of Yellow/Green wire between VIAS control solenoid valve harness connector terminal No. 2 and ECM harness connector terminal No. 16. See Fig 7. Also, check circuit for short to ground and short to voltage. Repair circuit as necessary. If circuit is okay, go to next step.
  4. Reconnect all harness connectors. Repeat step  1. If power valve actuator rod moves, test is complete. If power valve actuator rod does not move, go to next step.
  5. No problem is indicated at this time. Problem may be intermittent. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES article.
Fig 1: Locating Power Valve Actuator (I30 & Maxima)
G00051943Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Locating Power Valve Actuator (Pathfinder & QX4)
G00051948Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 3: Locating VIAS Control Solenoid Valve (I30 & Maxima)
G00051944Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 4: Locating VIAS Control Solenoid Valve (Pathfinder & QX4)
G00051949Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 5: Locating ECM & ECM Harness Connector (I30 & Maxima)
G00015111Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 6: Locating ECM Harness Connector (Pathfinder & QX4)
G00025051Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 7: Identifying ECM Harness Connector Terminals (I30, Maxima, Pathfinder, QX4 & Sentra)
G00015112Courtesy of NISSAN MOTOR CO., U.S.A.