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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 112 (Engine Controls Self-Diagnostics - Pathfinder) >> Diagnostic Tests >> DTC P1130: Swirl Control Valve Control Solenoid Valve >> Diagnostic Procedure "A"

Diagnostic Procedure "A"

WARNING: This page is about a different car, the 2003 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. If using CONSULT-II, go to next step. If using generic scan tool, go to step  3.
  2. Turn ignition on. Select SWIRL CONT SOL VALVE in ACTIVE TEST mode with CONSULT-II. Touch ON and OFF on CONSULT-II screen. Listen for clicking sound from Swirl Control Valve (SCV) control solenoid valve. If valve does not click, go to next step. If valve clicks and CONSULT-II is available, go to step  6. If valve clicks and CONSULT-II is not available, go to step  7.
  3. Turn ignition off. Disconnect SCV control solenoid valve 2-pin harness connector. See Fig 1. Turn ignition on. Measure voltage between ground and SCV control solenoid valve harness connector terminal No. 1 (Red wire). If battery voltage does not exist, go to next step. If battery voltage exists, go to step  5.
  4. Check following:
    • Check for poor, loose, corroded or damaged terminal connections in in-line harness connectors F22 and M33. See ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS article in ELECTRICAL.
    • Check for poor, loose, corroded or damaged terminal connections in fuse block harness connector M1 and E1.
    • Check for open or short in circuits between SCV control valve solenoid and ECM relay.
    If problem is found, repair as necessary. After repair, repeat DTC CONFIRMATION TEST "A" .
  5. Turn ignition off. Disconnect ECM 116-pin harness connector. For ECM location, see Figure. Check continuity of Green wire between SCV solenoid harness connector terminal No. 2 and ECM harness connector terminal No. 27. See Figure. Continuity should exist. Also check circuit for short to ground and short to voltage. If no problem is found and CONSULT-II is available, go to next step. If no problem is found and CONSULT-II is not available, go to step  7. If problem is found, repair as necessary. After repair, repeat DTC CONFIRMATION TEST "A" .
  6. Connect any disconnected harness connectors. Start engine and allow to idle. Disconnect vacuum hose from SCV control solenoid valve. Select SWIRL CONT SOL VALVE in ACTIVE TEST mode with CONSULT-II. Touch ON and OFF on CONSULT-II screen. When SWIRL CONT SOL/V is ON vacuum should exist. When SWIRL CONT SOL/V is OFF vacuum should not exist. Swirl control valve on to off operation should take less than one second. If SCV valve operates as specified, go to step  8. If SCV valve does not operate as specified, replace intake manifold collector. After repair, repeat DTC CONFIRMATION TEST "A" .
  7. Connect any disconnected harness connectors. Remove vacuum hose between SCV control solenoid valve and SCV control valve actuator. Start engine and let it idle. Using fused jumper wires, apply battery voltage between SCV control solenoid valve terminals. Vacuum should flow through SCV solenoid. Remove jumper wires. Vacuum should not flow. SCV control valve should switch in less than one second. If operation is as specified, go to next step. If operation is not as specified, replace intake manifold collector. After repair, repeat DTC CONFIRMATION TEST "A" .
  8. No problem is indicated at this time. Problem may be intermittent. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES article.
Fig 1: Locating Swirl Control Valve Control Valve Solenoid
G00030220Courtesy of NISSAN MOTOR CO., U.S.A.
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