CONTINUOUSLY VARIABLE TRANSMISSION(TR580) > Control Valve Body
REMOVAL
CAUTION:
• Directly after the vehicle has been running or the engine has been idling for a long time, the CVTF is hot. Be careful not to burn yourself.
• Be careful not to spill CVTF on the exhaust pipe to prevent it from emitting smoke or causing a fire. If the CVTF adheres, wipe it off completely.
• Always clean the engine compartment before removal.
NOTE:
The control valve body is replaced as an assembly only, because it is a non-disassembly part.
1. Disconnect the ground cable from battery. NOTE">
NOTE:
For model with battery sensor, disconnect the ground terminal from battery sensor.
2. Remove the clip (A) from the air intake boot.
3. Loosen the clamp (B) connecting the air intake boot and air cleaner case (rear).
4. Loosen the clamp (C) which connects the air intake boot and throttle body.

5. Remove the air intake boot from the throttle body, and move it to the left side wheel apron.

6. Disconnect the following connectors.
• Transmission harness connectors
• Inhibitor harness connector
• Transmission radio ground terminal

(A) | Transmission harness connectors |
(B) | Inhibitor harness connector |
(C) | Transmission radio ground terminal |
7. Remove the pitching stopper.

8. Remove the air breather hose from the pitching stopper bracket, and then remove the pitching stopper bracket and transmission radio ground cord.

9. Remove the transmission case cover.

10. Remove the transmission harness stay and ground terminal.

11. Remove the transmission harness connector from the harness stay.
12. Remove the throttle body, and move it aside so that it will not interfere with the removal of the control valve. Throttle Body > REMOVAL">
NOTE:
Do not remove the preheater hose.
13. Clean the transmission exterior.
14. Fix the ST with tape, and set the ST to the vehicle.
NOTE:
When replacing the control valve body, the sheet is included in the control valve body for repairs.
| ST 18761AA010 | SHEET SPECIAL TOOL |

15. Remove the valve cover and gasket.

16. Remove the transmission harness from the valve cover.

17. Remove the O-ring from the transmission harness.

18. Disconnect the harness connector from the control valve body.
19. Remove the control valve body.

20. Remove the O-ring from the transmission.

Inspection
InstallationShift lock function
The shift lock mechanism in the Subaru Ascent is designed to enhance safety by
preventing unintended or incorrect operation of the select lever. This system ensures
that gear changes occur only under appropriate conditions.
In the Subaru Ascent, the select lever can only be operated when the ...
Where to place a child restraint system
The following guidelines represent SUBARU recommendations for correctly positioning
child restraint systems in the Subaru Ascent. Proper placement is essential to ensure
maximum safety and effectiveness of all restraint systems.
WARNING
In the Subaru Ascent, certain child restraint syst ...
Preparation tool
EXTERIOR BODY PANELS > General DescriptionPREPARATION TOOL1. SPECIAL TOOLILLUSTRATIONTOOL NUMBERDESCRIPTIONREMARKS925610000WRENCHUsed for removing and installing door hinge.2. GENERAL TOOLTOOL NAMEREMARKSSupport jackUsed for supporting door panel.Clip removerUsed for removing various types of cli ...