Control Valve Body Cover Replacement

Control Valve Body Cover Replacement

Removal Procedure

1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection Battery Negative Cable Disconnection and Connection.

Danger: Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal Protection Equipment (PPE) and proper procedures must be followed.


The High Voltage Disabling procedure will perform the following tasks:


* Identify how to disable high voltage.

* Identify how to test for the presence of high voltage.

* Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures must be followed.


Failure to follow the procedures exactly as written may result in serious injury or death.


2. Disable the high voltage system. Refer to High Voltage Disabling High Voltage Disabling.
3. Remove the drive motor battery radiator surge tank. Refer to Drive Motor Battery Radiator Surge Tank Replacement Drive Motor Battery Radiator Surge Tank Replacement.
4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle Service and Repair.
5. Drain the transmission. Refer to Transmission Fluid Drain and Fill Transmission Fluid Drain and Fill.
6. Disconnect the transmission auxiliary fluid pump wire retainer from the upper retaining stud on the control valve body cover.




7. Remove the wire harness retainer (2) from the control valve body cover stud, if equipped.
8. Disconnect the control valve body transmission control module (TCM) electrical connector (1).




9. Disconnect the heated oxygen sensor wire retainer (1) from the control valve body cover stud.
10. Disconnect the heated oxygen sensor connectors (2, 3).
11. Remove the connector bracket retaining fasteners (4).
12. Position bracket away from the control valve body cover.




13. Remove the 14 control valve body cover fasteners (1,2).
14. Remove the control valve body cover.
15. Remove the control valve body cover gasket, if necessary.

Caution: Support the control solenoid valve assembly around the connector when removing the seal. Excessive pulling force can damage the internal electrical connections.

16. Remove the control valve body cover wiring connector hole seal, If necessary.
17. Remove all traces of the old gasket material. Clean the transmission case and control valve body cover gasket surfaces.

Installation Procedure

1. Install the control valve body cover wiring connector hole seal, if removed.
2. Install the control valve body cover gasket to the control valve body cover, if removed.
3. Install the control valve body cover.





Caution: Refer to Fastener Caution Fastener Caution.

Note: Install all control valve body cover bolts and studs by hand then torque all bolts and studs in the sequence shown.

4. Tighten the 14 control valve body cover fasteners in the sequence shown to 9 Nm (80 lb in).




5. Connect the control valve body TCM electrical connector (1).
6. Install the wire harness retainer (2) to the control valve body cover stud.
7. Connect the transmission auxiliary fluid pump wire retainer to the upper retaining stud on the control valve body cover.




8. Connect the heated oxygen sensor wire retainer (1) to the control valve body cover stud.
9. Position bracket on the control valve body cover studs.
10. Install the connector bracket retaining fasteners (4), Then tighten the fasteners (4) to 9 Nm (80 lb in).
11. Connect the heated oxygen sensor connectors (2, 3).
12. Lower the vehicle.
13. Fill the transmission. Refer to Transmission Fluid Drain and Fill Transmission Fluid Drain and Fill.
14. Install the drive motor battery radiator surge tank. Refer to Drive Motor Battery Radiator Surge Tank Replacement Drive Motor Battery Radiator Surge Tank Replacement.
15. Enable the high voltage system. Refer to High Voltage Enabling High Voltage Enabling.
16. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection Battery Negative Cable Disconnection and Connection.
17. Check for leaks.