Service Manual — page 190 of 715

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3-100 FUEL SYSTEM (DFI)
Air Switching Valve (Service Code 64) (DTC P0410)
Air Switching Valve Removal/Installation
• Refer to the Air Switching Valve Removal/Installation in
  the Engine Top End chapter.
Air Switching Valve Inspection
• Refer to the Air Switching Valve Unit Test in the Electrical
  System chapter.
  If the air switching valve is good, check the wiring for con-
  tinuity (see Air Switching Valve Circuit).
  If there is no continuity, repair or replace the main har-
  ness.
Air Switching Valve Circuit

    1. ECU                                               8. ECU Fuse 15 A
    2. Frame Ground 4                                    9. Relay Box
    3. Frame Ground 2                                   10. ECU Main Relay
    4. Engine Ground                                    11. Fuse Box 1
    5. Battery 12 V 8 Ah                                12. Ignition Fuse 15 A
    6. Starter Relay                                    13. Ignition Switch
    7. Main Fuse 30 A                                   14. Air Switching Valve