Control Valve Body Replacement

Control Valve Body Replacement

Removal Procedure




1. Remove the transaxle case side cover. Refer to Control Valve Body Cover Replacement (Control Valve Body Cover Replacement).
2. Remove the oil pump bolts and the oil pump assembly.
3. Remove the oil pump shaft.




4. Disconnect the wire harness connectors from the following components:

* Pressure control solenoid
* 1-2, 2-3 shift solenoids
* TFP switch assembly
* TCC solenoid




5. Remove the TFP switch assembly bolts and remove the switch assembly from the control valve body. The 7 TFP switch O-rings are reusable if not damaged and should remain with the pressure switch assembly.




6. Remove the remaining control valve body bolts (9, 12, 16) and remove the control valve body assembly (18).




7. Remove the spacer plate support bolts (20) and remove the spacer plate support (21).

Note: Checkballs may fall out of the channel plate assembly. Retain the checkballs with petroleum jelly.

8. Remove the spacer plate (90) with the spacer plate filter attached.
9. Remove and discard the spacer plate assembly (90).

Disassembly/Assembly Procedure

For step by step instructions on how to disassemble/assemble the control valve body, refer to Control Valve Body Disassemble (94. Control Valve Body Disassemble) and Control Valve Body Assemble (95. Control Valve Body Assemble).

Installation Procedure




1. Make sure the checkballs (1-7) are in the proper locations on the channel plate. Retain the checkballs with petroleum jelly.




2. Install a new spacer plate assembly (90) onto the channel plate.

Caution: Refer to Fastener Caution (Fastener Caution).

3. Hand start the spacer plate support bolts (20) and install the spacer plate support (21).
Tighten the spacer plate support bolts to 14 Nm (10 lb ft).




4. Install a new control valve body to the spacer plate assembly (90).
5. Install the control valve body assembly onto the gasket. Hand start the control valve body assembly bolts (9, 12, 16) to hold the valve body in place.




6. Inspect the TFP switch assembly (2) in order to verify the condition and the correct location of the pressure switch O-rings. If necessary, replace the TFP switch assembly O-rings.
7. Install the TFP switch assembly onto the control valve body assembly.




8. Install the remaining control valve body bolts.




9. Hand start the bolts and tighten to 12 Nm (9 lb ft).




10. Connect the transaxle wiring harness to the following components:

* TFP switch assembly
* Pressure control solenoid (red connector)

Note: The 1-2 shift solenoid wires are red and green. The 2-3 shift solenoid wires are red and yellow.

* 1-2 shift solenoid
* 2-3 shift solenoid
* TCC solenoid




11. Install the oil pump shaft into the control valve body assembly.

Note: If necessary, rotate the oil pump shaft while installing the oil pump assembly in order to engage the shaft splines to the splines on the oil pump rotor.

12. Install the oil pump assembly onto the oil pump shaft and the control valve body..
Hand start and install the oil pump assembly bolts and tighten to 12 Nm (9 lb ft).
13. Install the transaxle case side cover. Refer to Control Valve Body Cover Replacement (Control Valve Body Cover Replacement).
14. Start the engine, warm up the transaxle, and check for leaks.
15. Inspect for proper fluid level. Refer to Transmission Fluid Level and Condition Check (Transmission Fluid Level and Condition Check).

Note: It is recommended that transmission adaptive pressure (TAP) information be reset.

Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, the ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.

16. Reset the TAP values. Refer to Transmission Adaptive Functions (Transmission Adaptive Functions).