LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Diagnosis >> On-Vehicle Service >> Control Valve Assembly >> Removal
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Control Valve Assembly: Removal

  1. Disconnect the negative battery terminal
  2. Drain ATF through drain plug.
  3. Disconnect heated oxygen sensor 2 harness connector.
  4. Remove oil pan and oil pan gasket.
    Fig 1: Locating Pan Bolts & Drain Plug
    G00740228Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Remove magnets from oil pan.
    Fig 2: Locating Pan Magnets
    G00740229Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Check foreign materials in oil pan to help determine causes of malfunction. If the A/T fluid is very dark, smells burned, or contains foreign particles, the frictional material (clutches, band) may need replacement. A tacky film that will not wipe clean indicates varnish build up. Varnish can cause valves, servo, and clutches to stick and can inhibit pump pressure.
  7. Disconnect terminal cord assembly connectors.
    CAUTION: Be careful not to damage connector.
    Fig 3: Locating Terminal Cord Assembly Connectors
    G00740231Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Disconnect A/T fluid temperature sensor 2 connector.
    CAUTION: Be careful not to damage connector.
    Fig 4: Locating A/T Fluid Temperature Sensor 2 Connector
    G00740232Courtesy of NISSAN MOTOR CO., U.S.A.
  9. Remove terminal cord assembly connectors from bracket.
    CAUTION: Be careful not to damage connector.
    Fig 5: Removing Terminal Cord Assembly Connectors From Bracket
    G00740233Courtesy of NISSAN MOTOR CO., U.S.A.
  10. Disconnect revolution sensor connector.
    CAUTION: Be careful not to damage connector.
    Fig 6: Locating Revolution Sensor Connector
    G00740234Courtesy of NISSAN MOTOR CO., U.S.A.
  11. Straighten terminal clips to free terminal cord assembly and revolution sensor harness then remove terminal clips.
    CAUTION: Hang down terminal cord assembly and revolution sensor harness toward outside so as not to disturb removal of control valve assembly.
    Fig 7: View Of Terminal Cord Assembly And Revolution Sensor Harness Placement During Removal
    G00740235Courtesy of NISSAN MOTOR CO., U.S.A.
  12. Remove bolts A, B and C from control valve assembly.
    Fig 8: Removing Bolts A, B And C From Control Valve Assembly (1 Of 2)
    G00740236Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 9: Removing Bolts A, B And C From Control Valve Assembly (2 Of 2)
    G00740237Courtesy of NISSAN MOTOR CO., U.S.A.
  13. Remove control valve assembly from transmission case.
    CAUTION: When removing, be careful with the manual valve notch and manual plate height. Remove it vertically.
    Fig 10: Removing Control Valve Assembly From Transmission Case
    G00740238Courtesy of NISSAN MOTOR CO., U.S.A.
  14. Remove A/T fluid temperature sensor 2 with bracket from control valve assembly.
    Fig 11: Removing A/T Fluid Temperature Sensor 2 With Bracket
    G00740239Courtesy of NISSAN MOTOR CO., U.S.A.
  15. Remove bracket from A/T fluid temperature sensor 2.
    Fig 12: Removing Bracket From A/T Fluid Temperature Sensor 2
    G00740240Courtesy of NISSAN MOTOR CO., U.S.A.
scientia non olet · About LEMON Manuals