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Home >> Mazda >> 2018 >> MX-5 Miata Club, Automatic Trans >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle System (Service Information) >> Transmission Range (Tr) Switch Removal/Installation

Transmission Range (Tr) Switch Removal/Installation

CAUTION:
  • Water or foreign objects entering the connector can cause a poor connection or corrosion. Be sure not to drop water or foreign objects on the connector when disconnecting it.
  1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION ).
  2. Remove the selector lever knob. (See AUTOMATIC TRANSMISSION SHIFT MECHANISM Removal/Installation ).
  3. Remove the shift panel component. (See SHIFT PANEL Removal/Installation ).
  4. Remove the upper panel. (See UPPER PANEL Removal/Installation ).
  5. Remove the parking brake lever boot panel. (See PARKING BRAKE LEVER BOOT PANEL Removal/Installation ).
  6. Remove the rear console. (See REAR CONSOLE Removal/Installation ).
  7. Remove the front console panel. (See FRONT CONSOLE PANEL Removal/Installation ).
  8. Remove the front console component. (See FRONT CONSOLE Removal/Installation ).
  9. Disconnect the connector and wiring harness clip.
    Fig 1: Identifying Wiring Harness Clip And Connector
    G11279307Courtesy of MAZDA MOTORS CORP.
  10. Place a clean rag behind the engine so that the engine does not contact the rear housing when it is tilted.
    Fig 2: Placing Clean Rag Behind Engine For Engine Not Contact Rear Housing
    G11279308Courtesy of MAZDA MOTORS CORP.
  11. Remove the front crossmember under cover. (See FRONT CROSSMEMBER UNDER COVER Removal/Installation ).
  12. Disconnect the control rod from the selector lever component. (See AUTOMATIC TRANSMISSION SHIFT MECHANISM Removal/Installation ).
  13. Remove the tunnel member.
    Fig 3: Identifying Tunnel Member Bolts
    G11279121Courtesy of MAZDA MOTORS CORP.
  14. Disconnect the HO2S connector. (See HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION ).
  15. Disconnect the TWC from the exhaust manifold (WU-TWC). (See EXHAUST SYSTEM REMOVAL/INSTALLATION ).
  16. Suspend the TWC using a cable as shown in the figure.
    Fig 4: Suspending TWC Using Cable
    G11279122Courtesy of MAZDA MOTORS CORP.
  17. Remove the power plant frame. (See POWER PLANT FRAME REMOVAL ).
  18. Tilt the transmission while being careful not to allow parts on the back of the engine to contact the vehicle body.
  19. Remove the insulator.
    Fig 5: Identifying Insulator And Bolts
    G11279282Courtesy of MAZDA MOTORS CORP.
  20. Disconnect the TR switch connector.
    Fig 6: Identifying TR Switch Connector
    G11279283Courtesy of MAZDA MOTORS CORP.
  21. Rotate the manual shaft to the N position.
  22. Secure the control rod component with an adjustable wrench as shown in the figure.
    Fig 7: Securing Control Rod Component With Adjustable Wrench
    G11279284Courtesy of MAZDA MOTORS CORP.
    CAUTION:
    • Do not use an impact wrench.
    • When loosening the control rod nut, secure the control rod component without applying torque within the AT.
  23. Remove the control rod nut.
    Fig 8: Identifying Control Rod Nut, Washer And Control Rod Component
    G11279285Courtesy of MAZDA MOTORS CORP.
  24. Remove the washer and control rod component.
  25. Pry off the lock washer using a flathead screwdriver.
    Fig 9: Prying Off Lock Washer Using Flathead Screwdriver
    G11279315Courtesy of MAZDA MOTORS CORP.
  26. Remove the nut and lock washer.
    Fig 10: Identifying Nut And Lock Washer
    G11279316Courtesy of MAZDA MOTORS CORP.
  27. Remove the TR switch.
    Fig 11: Identifying TR Switch And Bolt
    G11279317Courtesy of MAZDA MOTORS CORP.
  28. Rotate the manual shaft to the extension housing side fully and return two notches to set the N position.
    Fig 12: Rotating Manual Shaft To Extension Housing
    G11279318Courtesy of MAZDA MOTORS CORP.
  29. Install the TR switch and hand-tighten the new mounting bolt.
    Fig 13: Identifying TR Switch And Mounting Bolt
    G11279287Courtesy of MAZDA MOTORS CORP.
  30. Verify the TR switch reference line and the notch of the manual shaft are aligned.
    Fig 14: Checking TR Switch Reference Line And Notch Of Manual Shaft For Aligned
    G11279288Courtesy of MAZDA MOTORS CORP.
    CAUTION:
    • Improper adjustment of the TR switch will cause abnormal operation of the automatic transmission. Always adjust the TR switch correctly.
  31. Install the lock washer with the nut.
    Fig 15: Identifying Nut And Lock Washer
    G11279316Courtesy of MAZDA MOTORS CORP.

    Tightening torque 

    5.9-7.8 N.m {61-79 kgf.cm, 53-69 in.lbf}

  32. Stake the lock washer using a flathead screwdriver.
    Fig 16: Staking Lock Washer Using Flathead Screwdriver
    G11279322Courtesy of MAZDA MOTORS CORP.
  33. Tighten the TR switch mounting bolts.

    Tightening torque 

    10-15 N.m {102-152 kgf.cm, 89-132 in.lbf}

  34. Inspect for continuity between TR switch terminals E and H.
    Fig 17: Identifying TR Switch Connector Terminals
    G11279289Courtesy of MAZDA MOTORS CORP.
  35. Install the control rod component and washer.
    Fig 18: Identifying Control Rod Nut, Washer And Control Rod Component
    G11279285Courtesy of MAZDA MOTORS CORP.
  36. Secure the control rod component with an adjustable wrench and tighten the control rod nut as shown in the figure.
    Fig 19: Securing Control Rod Component With Adjustable Wrench
    G11279325Courtesy of MAZDA MOTORS CORP.
    CAUTION:
    • Do not use an impact wrench.
    • When tightening the control rod nut, secure the control rod component without applying torque within the AT.

    Tightening torque 

    14-18 N.m {1.5-1.8 kgf.m, 11-13 ft.lbf}

  37. Shift the selector lever to the P position.
  38. Turn the manual shaft lever to the P position.
  39. Inspect TR switch continuity. (See TRANSMISSION RANGE (TR) SWITCH INSPECTION ).
  40. Connect the TR switch connector.
    Fig 20: Identifying TR Switch Connector
    G11279283Courtesy of MAZDA MOTORS CORP.
  41. Install the insulator using the following procedure.
    1. Temporarily tighten bolt B.
      Fig 21: Identifying Insulator Bolt
      G11279133Courtesy of MAZDA MOTORS CORP.
    2. Install the insulator and temporarily tighten bolts A and C in the order of A and C.
      Fig 22: Insulator Bolts Tightening Sequence
      G11279134Courtesy of MAZDA MOTORS CORP.
    3. Completely tighten bolts A, B, and C in the order of A, B, C.

    Tightening torque 

    19-25 N.m {2.0-2.5 kgf.m, 15-18 ft.lbf}

  42. Install the power plant frame. (See POWER PLANT FRAME INSTALLATION ).
  43. Remove the tunnel member temporarily.
    Fig 23: Identifying Tunnel Member Bolts
    G11279121Courtesy of MAZDA MOTORS CORP.
  44. Install the TWC to the exhaust manifold (WU-TWC). (See EXHAUST SYSTEM REMOVAL/INSTALLATION ).
  45. Connect the HO2S connector. (See HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION ).
  46. Install the tunnel member.
    Fig 24: Identifying Tunnel Member Bolts With Torque Specification
    G11279146Courtesy of MAZDA MOTORS CORP.
  47. Install the control rod from the selector lever component. (See AUTOMATIC TRANSMISSION SHIFT MECHANISM Removal/Installation ).
  48. Install the front crossmember under cover. (See FRONT CROSSMEMBER UNDER COVER Removal/Installation ).
  49. Connect the connector and wiring harness clip.
    Fig 25: Identifying Wiring Harness Clip And Connector
    G11279118Courtesy of MAZDA MOTORS CORP.
  50. Install the front console component. (See FRONT CONSOLE Removal/Installation ).
  51. Install the front console panel. (See FRONT CONSOLE PANEL Removal/Installation ).
  52. Install the rear console. (See REAR CONSOLE Removal/Installation ).
  53. Install the parking brake lever boot panel. (See PARKING BRAKE LEVER BOOT PANEL Removal/Installation ).
  54. Install the upper panel. (See UPPER PANEL Removal/Installation ).
  55. Install the shift panel component. (See SHIFT PANEL Removal/Installation ).
  56. Install the selector lever knob. (See AUTOMATIC TRANSMISSION SHIFT MECHANISM Removal/Installation ).
  57. Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION ).
  58. Inspect TR switch operation. (See TRANSMISSION RANGE (TR) SWITCH INSPECTION ).
  59. Perform the "Initial Learning" (TR switch replacement). (See INITIAL LEARNING PROCEDURE ).
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