TCM Removal/Installation: Notes

WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

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.

Disconnect the negative battery cable.
Remove the air cleaner component. (See INTAKE AIR SYSTEM REMOVAL/INSTALLATION .)
Disconnect the TCM connector.
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: Identifying Selector Cable Components
  Courtesy of MAZDA MOTORS CORP.
Set the adjustable wrench as shown in the figure to hold the manual shaft lever.

Fig 2: Identifying Manual Shaft Lever
Courtesy of MAZDA MOTORS CORP.
Remove the manual shaft nut and washer.

Fig 3: Removing Manual Shaft Nut And Washer
Courtesy of MAZDA MOTORS CORP.
Remove the TCM.

Fig 4: Removing TCM
Courtesy of MAZDA MOTORS CORP.
CAUTION:
- Do not touch the terminals.
  
  Fig 5: Identifying Terminal
  Courtesy of MAZDA MOTORS CORP.
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.

Fig 6: Inspecting Condition Of Connector Pin
Courtesy of MAZDA MOTORS CORP.
Align the transaxle case and coupler component connector.

Fig 7: Aligning Transaxle Case And Coupler Component Connector
Courtesy of MAZDA MOTORS CORP.
Be sure to match the position of the TCM marking.
CAUTION:
- Do not turn more than 60 from the marking.
Fig 8: Matching Position Of TCM
Courtesy of MAZDA MOTORS CORP.
Install the TCM.
Verity the correct positioning of the TCM and coupler component.

Fig 9: Verifying Position Of TCM
Courtesy of MAZDA MOTORS CORP.
Tighten the TCM mounting bolts.
Tightening torque

19.6-29.4 N.m {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.
Install the manual shaft lever and the washer.

Fig 10: Installing Manual Shaft Lever And Washer
Courtesy of MAZDA MOTORS CORP.
Set the adjustable wrench as shown in the figure to hold the manual shaft lever, and tighten the manual shaft nut.
Tightening torque

9.8-14.7 N.m {100-142 kgf.cm, 87-123 in.lbf}

Fig 11: Holding Manual Shaft Lever
Courtesy of MAZDA MOTORS CORP.
Install the clip to the selector cable as shown in the figure.

Fig 12: Installing Clip
Courtesy of MAZDA MOTORS CORP.
Shift the selector lever to P position.
Turn the manual shaft lever to P position.
Connect the selector cable and install the clip.

Fig 13: Connecting Selector Cable
Courtesy of MAZDA MOTORS CORP.
Connect the TCM connector.
Install the air cleaner component. (See INTAKE AIR SYSTEM REMOVAL/INSTALLATION .)
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.
Perform the neutral position learning. (See NEUTRAL POSITION LEARNING .)