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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1050 (Automatic Transmission) >> Removal And Installation >> Control Valve And TCM >> Removal and Installation >> Removal And Installation Of Control Valve And TCM

Removal And Installation Of Control Valve And TCM

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Removal

  1. Disconnect negative battery terminal. Refer to "REMOVAL AND INSTALLATION ".
  2. Drain A/T fluid. Refer to "CHANGING THE A/T FLUID (ATF) ".
  3. Disconnect A/T assembly harness connector.
  4. Remove snap ring from A/T assembly harness connector.
    Fig 1: Removing Snap Ring From A/T Assembly Harness Connector
    G08165485Courtesy of NISSAN NORTH AMERICA, INC.
  5. Push A/T assembly harness connector.
    CAUTION: Do not damage connector.
    Fig 2: Pushing A/T Assembly Harness Connector
    G08165486Courtesy of NISSAN NORTH AMERICA, INC.
  6. Remove oil pan and oil pan gasket. Refer to "REMOVAL AND INSTALLATION ".
  7. Straighten terminal clip (<=) to free the output speed sensor harness.
  8. Disconnect output speed sensor connector (1).
    CAUTION: Do not damage connector.
    Fig 3: Locating Output Speed Sensor Harness Terminal Clip
    G08165487Courtesy of NISSAN NORTH AMERICA, INC.
  9. Remove bolts (A), (B) and (C) from control valve with TCM.
    Fig 4: Identifying TCM Control Valve Mounting Bolts
    G08165488Courtesy of NISSAN NORTH AMERICA, INC.
    Bolt symbol Length mm (in) Number of bolts
    A 42 (1.65) 5
    B 55 (2.17) 6
    C 40 (1.57) 1
  10. Remove control valve with TCM from transmission case.
    CAUTION: When removing, be careful with the manual valve notch and manual plate height. Remove it vertically.
    Fig 5: Removing TCM Control Valve From Transmission Case
    G08165489Courtesy of NISSAN NORTH AMERICA, INC.
  11. Remove plug (1) with bracket (2) from control valve with TCM.
    • <=: Bolt
      Fig 6: Locating TCM Control Valve Bracket Mounting Bolts
      G08165490Courtesy of NISSAN NORTH AMERICA, INC.
  12. Remove the bracket (1) from plug (2).
    Fig 7: Removing/Installing Plug Bracket
    G08165491Courtesy of NISSAN NORTH AMERICA, INC.
  13. Remove O-ring (1) from plug (2).
    CAUTION: Do not reuse O-ring.
    Fig 8: Identifying O-Ring And Plug
    G08165492Courtesy of NISSAN NORTH AMERICA, INC.
  14. Remove O-ring from A/T assembly harness connector.
    CAUTION: Do not reuse O-ring.
    Fig 9: Identifying O-Ring In A/T Assembly Harness Connector
    G08165493Courtesy of NISSAN NORTH AMERICA, INC.
  15. Disconnect TCM connectors.
    CAUTION: Do not damage connectors.
    Fig 10: Identifying TCM Connectors
    G08165494Courtesy of NISSAN NORTH AMERICA, INC.
  16. Remove A/T assembly harness connector from control valve with TCM using suitable tool.
    Fig 11: Removing A/T Assembly Harness Connector From TCM Control Valve Using Tool
    G08165495Courtesy of NISSAN NORTH AMERICA, INC.
  17. Disconnect TCM connector (1) and transmission range switch connector (2).
    CAUTION: Do not damage connectors.
    Fig 12: Identifying TCM Connector And Transmission Range Switch Connector
    G08165496Courtesy of NISSAN NORTH AMERICA, INC.

Installation

CAUTION: After completing installation, check for A/T fluid leaks and fluid level. Refer to "CHECKING THE A/T FLUID (ATF) ".
  1. Connect TCM connector (1) and transmission range switch connector (2).
    Fig 13: Identifying TCM Connector And Transmission Range Switch Connector
    G08165497Courtesy of NISSAN NORTH AMERICA, INC.
  2. Install A/T assembly harness connector to control valve with TCM.
    Fig 14: Installing A/T Assembly Harness Connector
    G08165498Courtesy of NISSAN NORTH AMERICA, INC.
  3. Connect TCM connector.
    Fig 15: Identifying TCM Connectors
    G08165499Courtesy of NISSAN NORTH AMERICA, INC.
  4. Install new O-ring in A/T assembly harness connector.
    CAUTION:
    • Do not reuse O-ring.
    • Apply ATF to O-ring.
      Fig 16: Identifying O-Ring And A/T Assembly Harness Connector
      G08165500Courtesy of NISSAN NORTH AMERICA, INC.
  5. Install new O-ring (1) in plug (2).
    CAUTION:
    • Do not reuse O-ring.
    • Apply ATF to O-ring.
    • O-ring should be free of contamination.
      Fig 17: Identifying O-Ring And Plug
      G08165501Courtesy of NISSAN NORTH AMERICA, INC.
  6. Install plug (2) to bracket (1).
    Fig 18: Removing/Installing Plug Bracket
    G08165502Courtesy of NISSAN NORTH AMERICA, INC.
  7. Install plug (1) [with bracket (2)] to control valve with TCM.
    • <=: Bolt
    CAUTION: Adjust bolt hole of bracket to bolt hole of control valve with TCM.
    Fig 19: Locating TCM Control Valve Bracket Mounting Bolts
    G08165503Courtesy of NISSAN NORTH AMERICA, INC.
  8. Install control valve with TCM in transmission case.
    Fig 20: Identifying TCM Control Valve And Brake Band
    G08165504Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Make sure that input speed sensor is securely installed into input speed sensor hole (A).
    • Hang down output speed sensor harness toward outside so as not to disturb installation of control valve with TCM.
    • Adjust A/T assembly harness connector of control valve with TCM to terminal hole of transmission case.
    • Assemble it so that manual valve cutout is engaged with manual plate projection.
      Fig 21: Removing TCM Control Valve From Transmission Case
      G08165505Courtesy of NISSAN NORTH AMERICA, INC.
  9. Install bolts (A), (B) and (C) in control valve with TCM.
    Fig 22: Identifying TCM Control Valve Mounting Bolts
    G08165506Courtesy of NISSAN NORTH AMERICA, INC.
    Bolt symbol Length mm (in) Number of bolts
    A 42 (1.65) 5
    B 55 (2.17) 6
    C 40 (1.57) 1
  10. Tighten bolt (1A), (2B) and (3A) temporarily to prevent dislocation. After that tighten them in order (1 → 2 → 3). Then tighten other bolts. Tighten control valve with TCM bolts to the specified torque.
    Fig 23: Identifying TCM Control Valve Mounting Bolts Specifications
    G08165507Courtesy of NISSAN NORTH AMERICA, INC.
    Bolt symbol A B C
    Number of bolts 5 6 1
    Length mm (in) 42 (1.65) 55 (2.17) 40 (1.57)
    Tightening torque N.m (kg-m, in-lb) 7.9 (0.81, 70) With ATF applied
    7.9 (0.81, 70)
  11. Connect output speed sensor connector (1).
    Fig 24: Identifying Output Speed Sensor Connector
    G08165508Courtesy of NISSAN NORTH AMERICA, INC.
  12. Securely fasten output speed sensor (1) harness with terminal clip (<=).
    Fig 25: Locating Output Speed Sensor Harness Terminal Clip
    G08165509Courtesy of NISSAN NORTH AMERICA, INC.
  13. Install oil pan to transmission case. Refer to "REMOVAL AND INSTALLATION ".
  14. Pull up A/T assembly harness connector.
    CAUTION: Do not damage connector.
    Fig 26: Pulling A/T Assembly Harness Connector
    G08165510Courtesy of NISSAN NORTH AMERICA, INC.
  15. Install snap ring to A/T assembly harness connector.
  16. Connect A/T assembly harness connector.
  17. Connect the negative battery terminal.
  18. Refill the A/T with fluid and check the fluid level and for fluid leaks. Refer to "CHECKING THE A/T FLUID (ATF) ".
    Fig 27: Installing Snap Ring To A/T Assembly Harness Connector
    G08165511Courtesy of NISSAN NORTH AMERICA, INC.
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