Control Valve Body Removal/Installation

NOTE:

When the battery has been disconnected and reconnected, some abnormal drive symptoms can occur while the vehicle re-learns its adaptive strategy. The customer needs to be notified that they may experience slightly different upshifts either soft or firm and this is a temporary condition and will eventually return to normal operating condition.

Disconnect the negative battery cable.
Raise and support the vehicle.
NOTE:
- If a transmission has been disassembled to replace worn or damaged parts and the valves in the main control valve body stick repeatedly from foreign material, the torque converter must be removed and cleaned by using a mechanically agitated cleaner, such as the Torque Converter/Fluid Cooler Cleaner.
Remove the oil pan and oil strainer. See AUTOMATIC TRANSMISSION OIL PAN (GASKET AND OIL STRAINER) REMOVAL/INSTALLATION .
Unclip control valve body wire harness.
1. Lift up on wire harness guide and protector and disengage the retaining pins from the solenoid clamps.
Fig 1: Disengaging Retaining Pins
Courtesy of MAZDA MOTORS CORP.
Disconnect the (1) SS1, SS2, SS3 and CCS/SS4 electrical connectors.
Disconnect the (2) torque converter clutch (TCC) solenoid electrical connector.
Disconnect the (3) electronic pressure control (EPC) solenoid electrical connector.

Fig 2: Disconnecting SS1, SS2, SS3, TCC, EPC Solenoid Electrical Connectors
Courtesy of MAZDA MOTORS CORP.
Remove the detent bolt (1) and spring (2).

Fig 3: Removing Detent Bolt & Spring
Courtesy of MAZDA MOTORS CORP.
Remove the reverse servo (2).
- Remove the reverse servo cover and gasket.
  1. Discard gasket.
WARNING:
- The piston assembly can pop out due to spring pressure when removing the cover.
Fig 4: Removing Reverse Servo Cover & Gasket
Courtesy of MAZDA MOTORS CORP.
Remove the reverse servo piston and rod.

Fig 5: Removing Reverse Servo Piston & Rod
Courtesy of MAZDA MOTORS CORP.
CAUTION:
- Support main control valve body.
Do not remove the two (gold) bolts specified.

Fig 6: Identifying Two (Gold) Bolts Not To Be Removed
Courtesy of MAZDA MOTORS CORP.
Remove the 23 main control valve body (black) bolts.
CAUTION:
- Support the main control valve body.
NOTE:
- Use a 10 mm socket to remove the 16 M6x40mm, 4 M6x45mm, 2 M6x35 and 1 M6x30mm control valve body screws.
Fig 7: Removing Main Control Valve Body (Black) Bolts
Courtesy of MAZDA MOTORS CORP.
Remove the control valve body as an assembly.
Install the alignment pins into the transmission case.

Fig 8: Installing Alignment Pins Into Transmission Case
Courtesy of MAZDA MOTORS CORP.
Install a new gasket and separator.

Fig 9: Installing A New Gasket & Separator
Courtesy of MAZDA MOTORS CORP.
NOTE:
- Make sure main control to case gasket is properly aligned.
  Use petroleum jelly to hold gasket in place.
Install the control valve body assembly.
1. Position the assembly using the SSTs as a guide.
  
  Fig 10: Positioning Assembly Using SSTs As A Guide
  Courtesy of MAZDA MOTORS CORP.
  NOTE:
  - The main control valve body bolts will be tightened in later steps.
2. Loosely install the four M6x45mm main control valve body bolts.
  
  Fig 11: Installing Four M6x45mm Main Control Valve Body Bolts
  Courtesy of MAZDA MOTORS CORP.
3. Loosely install the two M6x35mm main control valve body bolts.
4. Remove the SSTs .
  
  Fig 12: Installing Two M6x35mm Main Control Valve Body Bolts
  Courtesy of MAZDA MOTORS CORP.
5. Loosely install the M6x30mm main control valve body bolt.
  
  Fig 13: Installing M6X30Mm Main Control Valve Body Bolt
  Courtesy of MAZDA MOTORS CORP.
6. Loosely install the sixteen M6x40mm main control valve body bolts.
  
  Fig 14: Installing Sixteen M6x40mm Main Control Valve Body Bolts
  Courtesy of MAZDA MOTORS CORP.
7. Tighten the main control valve body bolts in the sequence shown.
Fig 15: Tightening Sequence Of Main Control Valve Body Bolts
Courtesy of MAZDA MOTORS CORP.
Install the spring and detent spring bolt.

Fig 16: Installing Spring & Detent Spring Bolt
Courtesy of MAZDA MOTORS CORP.
Install the reverse servo piston and rod.

Fig 17: Installing Reverse Servo Piston & Rod
Courtesy of MAZDA MOTORS CORP.
Check the reverse piston travel.
Install a new gasket and reverse piston cover and tighten in order shown.

Fig 18: Tightening Order Of New Gasket & Reverse Piston Cover
Courtesy of MAZDA MOTORS CORP.
Connect the six solenoid connectors to the solenoids.
1. SS1, SS2, SS3 and CCS/SS4 solenoids
2. TCC solenoid
3. EPC solenoid
  NOTE:
  - The wiring guide snaps into place on the solenoid retainers.
Fig 19: Connecting Six Solenoid Connectors To Solenoids
Courtesy of MAZDA MOTORS CORP.
Install the wiring loom protector and guide.
1. Align the pins in the holes of the solenoid brackets and gently push down.
  CAUTION:
  - Excessive pressure may break the locating pins.
Fig 20: Installing Wiring Loom Protector & Guide
Courtesy of MAZDA MOTORS CORP.
Test the solenoid valves. See AUTOMATIC TRANSMISSION DIAGNOSIS .
Install new O-rings on the oil strainer.
Apply petroleum jelly to the O-rings.
Install the oil strainer.

Fig 21: Installing Oil Strainer
Courtesy of MAZDA MOTORS CORP.
Install the oil pan gasket.

Fig 22: Installing Oil Pan Gasket
Courtesy of MAZDA MOTORS CORP.
Install the oil pan.

Fig 23: Installing Oil Pan
Courtesy of MAZDA MOTORS CORP.
NOTE:
- Use a crisscross sequence to tighten the transmission fluid pan bolts.
Install transmission heat shield (5R44E/5R55E only).
1. Tightening Torque
  1. 8-11 Nm {82-112 kgfcm, 71-97 ft.lbf}
Lower the vehicle.
NOTE:
- When the battery has been disconnected and reconnected, some abnormal drive symptoms can occur while the vehicle relearns its adaptive strategy. The customer needs to be notified that they may experience slightly different upshifts either soft or firm and this is a temporary condition and will eventually return to normal operating condition.
Connect the negative battery cable.
Fill transmission to the proper fluid level.
NOTE:
- Use equivalent.
Drive vehicle and check shift points, shift schedule and shift shock; see AUTOMATIC TRANSMISSION PRELIMINARY INSPECTION .