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Home >> Infiniti >> 2018 >> QX30 Base >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission (Introduction And Basic Inspection) >> System Description >> Structure And Operation >> Sectional View >> Control Valve Assembly
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Control Valve Assembly

GNSJSDIA8807Z-807Courtesy of NISSAN NORTH AMERICA, INC.

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Electric oil pump

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TCM

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System pressure control valve

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Shift rod control valve A

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Intermediate panel

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Shift valve body

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Valve housing

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Shift rod control valve C

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Shift rod control valve B

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K1 clutch regulation valve

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K2 clutch regulation valve

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Park pawl switchover valve

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Gear cylinder pressure valve

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Shift rod control valve D

The task of the TCM is to receive and evaluate incoming electrical status and actuate the control/switchover valves of the TCM accordingly. Via the control/switchover valves and the downstream control/shift valves (integrated in the shift valve body), the hydraulic flow to the respective gear actuator cylinders, the clutches and the park pawl system is enabled in order to initiate the gear (range) change.