2009 Mazda RX8 2RTR-1.3LFACTORY OEM SERVICE PROCEDURE

Transmission Position Sensor/Switch: Service and Repair




TRANSMISSION RANGE (TR) SWITCH REMOVAL/INSTALLATION [SJ6A-EL]

CAUTION:
- Water or foreign material entering the connector can cause poor connections or corrosion. Be sure that water or foreign material do not enter the connector when disconnecting it.

1. Remove the engine cover. Service and Repair

2. Remove the battery cover.

3. Disconnect the negative battery cable.

4. Remove the front tunnel member.

5. Remove the rear tunnel member.

6. Remove the catalytic converter. Service and Repair

7. Remove the insulator.

Factory service manual diagram





8. Mark the manual shaft lever component as shown in the figure.

Factory service manual diagram





9. Separate the manual shaft lever component from selector lever.

10. Disconnect the TR switch connector.

Factory service manual diagram





11. Rotate the manual shaft to the N position.

CAUTION:
- Do not use an impact wrench. Hold the manual shaft lever when removing the manual shaft nut, otherwise the transmission may be damaged.

12. Set the adjustable wrench as shown in the figure to hold the manual shaft lever.

Factory service manual diagram





13. Remove the manual shaft nut.

14. Remove the washer and manual shaft lever component.

Factory service manual diagram





15. Pry off the lock washer using a flathead screwdriver.

Factory service manual diagram





16. Remove the nut, lock washer and the washer.

Factory service manual diagram





17. Remove the TR switch.

Factory service manual diagram





18. Rotate the manual shaft to the extension housing side fully and return two notches to set the N position.

Factory service manual diagram





19. Install the TR switch and hand-tighten the new mounting bolts.

CAUTION:
- Improper adjustment of the TR switch will cause abnormal operation of the automatic transmission. Be sure to adjust the TR switch correctly.

20. Verify the TR switch reference line and the notch of the manual shaft are aligned.

Factory service manual diagram





21. Install the washer and the lock washer with the nut.

Factory service manual diagram





Tightening torque
- 5.9-7.8 Nm {61-79 kgf-cm, 53-68 in-lbf}

22. Stake the lock washer using a flathead screwdriver.

Factory service manual diagram





23. Tighten the TR switch mounting bolts.

Tightening torque
- 9.8-15.7 Nm {100-160 kgf-cm, 87-138 in-lbf}

24. Inspect for continuity between TR switch terminals E and H.

Factory service manual diagram





25. Install the manual shaft lever component and washer.

CAUTION:
- Do not use an impact wrench. Hold the manual shaft lever when tightening the manual shaft nut, otherwise the transmission may be damaged.

26. Set the adjustable wrench as shown in the figure to hold the manual shaft lever.

Factory service manual diagram





27. Tighten the manual shaft nut using a torque wrench.

Tightening torque
- 13.7-17.6 Nm {1.4-1.8 kgf-m, 11-13 ft-lbf}

28. Shift the selector lever to the P position.

29. Turn the manual shaft lever to the P position.

30. Inspect TR switch continuity. Testing and Inspection

31. Connect the TR switch connector.

32. Align the mark of the manual shaft lever component as shown in the figure.

Factory service manual diagram





33. Install the manual shaft lever component installation nut.

Tightening torque
- 10.8-14.7 Nm {1.1-1.4 kgf-m, 8.0-10.8 ft-lbf}

34. Install the insulator.

Tightening torque
- 8-11 Nm {82-112 kgf-cm, 72-97 in-lbf}

35. Install the catalytic converter. Service and Repair

36. Install the rear tunnel member.

37. Install the front tunnel member.

38. Connect the negative battery cable.

39. Install the battery cover.

40. Install the engine cover. Service and Repair

41. Inspect TR switch operation. Testing and Inspection

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.