2012 Mazda CX-7 FWD L4-2.3L TurboFACTORY OEM SERVICE PROCEDURE

Control Module: Service and Repair





TCM REMOVAL/INSTALLATION [AW6A-EL, AW6AX-EL]

CAUTION:
- Water or foreign material entering the connector can cause a poor connection or corrosion. Be sure not to allow water or foreign material on the connector when disconnecting.

1. Disconnect the negative battery cable.

2. Remove the air cleaner component. Service and Repair

3. Disconnect the TCM connector.

4. Remove the clip and disconnect the selector cable.

Factory service manual diagram





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

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

Factory service manual diagram





6. Remove the manual shaft nut and washer.

Factory service manual diagram





7. Remove the TCM.

Factory service manual diagram





CAUTION:
- Do not touch the terminals.

Factory service manual diagram





8. Inspect the condition of the connector pin of the coupler component (foreign material, bent pins, broken pins) and O-ring after the TCM is removed.

Factory service manual diagram





9. Align the transaxle case and coupler component connector.

Factory service manual diagram





10. Be sure to match the position of the TCM marking.

Factory service manual diagram





CAUTION:
- Do not turn more than 60° from the marking.

11. Install the TCM.

12. Verify the correct positioning of the TCM and coupler component.

Factory service manual diagram





13. Tighten the TCM mounting bolts.

Tightening torque
- 19.6-29.4 Nm {2.0-2.9 kgf-m, 14.5-21.6 ft-lbf}

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

14. Install the manual shaft lever and the washer.

Factory service manual diagram





15. Set the adjustable wrench as shown in the figure to hold the manual shaft lever, and tighten the manual shaft nut.

Factory service manual diagram





Tightening torque
- 9.8-14.7 Nm {100-142 kgf-cm, 87-123 in-lbf}

16. Install the clip to the selector cable as shown in the figure.

Factory service manual diagram





17. Shift the selector lever to P position.

18. Turn the manual shaft lever to P position.

19. Connect the selector cable and install the clip.

Factory service manual diagram





20. Connect the TCM connector.

21. Install the air cleaner component. Service and Repair

22. Connect the negative battery cable.

WARNING:
- If you replace the ATX or TCM, be sure to initialize the learned values and perform neutral position learning.

23. Perform the neutral position learning. Programming and Relearning

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.

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