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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 784 (Automatic Transaxle [Service, Removal & Installation]) >> Transaxle Range (Tr) Switch Removal/Installation

Transaxle Range (Tr) Switch Removal/Installation

WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the battery duct and battery cover.
  2. Disconnect the negative battery cable.
  3. Remove the under cover.
    CAUTION:
    • Water or foreign material entering the connector can cause a poor connection or corrosion. Be sure not to drop water or foreign material on the connector when disconnecting it.
  4. Disconnect the TR switch connector.
  5. Remove the clip and disconnect the selector cable.
    CAUTION:
    • Do not use an impact wrench. Hold the manual shaft lever when removing the manual shaft nut, or the transaxle may be damaged.
    Fig 1: Removing Clip And Disconnecting Selector Cable
    G00974636Courtesy of MAZDA MOTORS CORP.
  6. Set the adjustable wrench as shown in the figure to hold the manual shaft lever.
  7. Remove the manual shaft nut and washer.
    Fig 2: Removing Manual Shaft Nut
    G00974637Courtesy of MAZDA MOTORS CORP.
  8. Remove the manual shaft lever.
  9. Remove the TR switch.
    Fig 3: Removing Manual shaft Lever and TR Switch
    G00974638Courtesy of MAZDA MOTORS CORP.
  10. Rotate the manual shaft to the converter housing side fully, then return two notches to set the N position.
    Fig 4: Setting Manual Shaft To N Position
    G00974639Courtesy of MAZDA MOTORS CORP.
  11. Turn the protrusion between the TR switch terminals B and C until the resistance becomes 750 ohms. 
    Fig 5: Identifying Protrusion Between The TR Switch Terminals B And C
    G00974640Courtesy of MAZDA MOTORS CORP.
    Fig 6: Identifying TR Switch Terminals
    G00974641Courtesy of MAZDA MOTORS CORP.
  12. Install the TR switch while aligning the protrusion and groove as shown in the figure.
    Fig 7: Installing TR Switch
    G00974642Courtesy of MAZDA MOTORS CORP.
  13. Hand-tighten the TR switch mounting bolts.
  14. Inspect the resistance between the TR switch terminals B and C.
    1. Resistance 750 ohms 
  15. Tighten the TR switch mounting bolts.
    1. Tightening torque 8-11 N.mm {82-112 kgf.cm, 71-97 in.lbf} 
    Fig 8: Identifying TR Switch Terminals
    G00974643Courtesy of MAZDA MOTORS CORP.
    CAUTION:
    • Do not use an impact wrench. Hold the manual shaft lever when removing the manual shaft nut, or the transaxle may be damaged.
  16. Install the manual shaft lever and the washer.
    Fig 9: Installing Manual Shaft Lever
    G00974644Courtesy of MAZDA MOTORS CORP.
  17. Set the adjustable wrench as shown in the figure to hold the manual shaft lever, and tighten the manual shaft nut.
    1. Tightening torque 31.4-46.1 N.m {3.2-4.7 kgf.m, 23.2-33.9 ft.lbf} 
    Fig 10: Tightening Manual Shaft Nut
    G00974645Courtesy of MAZDA MOTORS CORP.
  18. Install the clip to the selector cable as shown in the figure.
    Fig 11: Installing Clip To Selector cable
    G00974646Courtesy of MAZDA MOTORS CORP.
  19. Shift the selector lever to P position.
  20. Turn the manual shaft lever to P position.
  21. Connect the selector cable.
    Fig 12: Connecting Selector cable
    G00974647Courtesy of MAZDA MOTORS CORP.
  22. Inspect for continuity at the TR switch. (See TRANSAXLE RANGE (TR) SWITCH INSPECTION .)
  23. Connect the TR switch connector.
  24. Install the under cover.
  25. Connect the negative battery cable.
  26. Install the battery duct and battery cover.
  27. Inspect operation of the TR switch. (See TRANSAXLE RANGE (TR) SWITCH INSPECTION .)
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