Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Hydraulic Flow: Notes
As the engine turns, the CVTF pump starts to operate. Transmission fluid (CVTF) is drawn through the CVTF strainer (filter) and discharged into the hydraulic circuit. Then, CVTF flowing from the CVTF pump flows to the pressure high (PH) regulator valve and becomes the pressure high (PH) pressure. PH pressure flows to the pulley control valves and then to the pulleys.
The PCM actuates the solenoid valves to control hydraulic pressure shifting pulley ratio and engaging the start clutch.
| Port No. | Hydraulic Pressure |
|---|---|
| CC | Start Clutch Control |
| CCB | Start Clutch Control B |
| COL | CVTF Cooler |
| CR | Clutch Reducing |
| DN | Driven Pulley |
| DNC | Driven Pulley Control |
| DR | Drive Pulley |
| DRC | Drive Pulley Control |
| FWD | Forward Clutch |
| LUB | Lubrication |
| PH | Pressure High |
| PHC | Pressure High Control |
| RCC | Recirculation |
| RI | Reverse Inhibitor |
| RVS | Reverse Brake |
| SC | Start Clutch |
| SI | Shift Inhibitor |
| X | Drain |
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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