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Component
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Function
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N-R accumulator
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Reduces shift shock generated when R position is selected from N position, by moderating rapid hydraulic pressure increase when the reverse clutch and low and reverse brake are applied.
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N-D accumulator
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Reduces shift shock generated when D range is selected from N position, by moderating rapid hydraulic pressure increase when the forward clutch is applied.
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1-2 accumulator
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Reduces shift shock generated during 1GR→2GR shifting and 3GR→4GR shifting, by moderating rapid hydraulic pressure increase when the 2-4 brake band is applied.
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Bypass valve
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Controls 3-4 clutch application timing and shift shock during 2GR→3GR shifting.
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Cutback valve
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Controls modifier pressure applied to the pressure regulator valve.
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3-2 timing valve
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Controls 2-4 brake band apply side pressure during 1GR→2GR shifting in all conditions, and 2GR→3GR shifting at low ATF temperature.
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Pressure modifier accumulator
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Stabilizes modifier pressure adjusted by the pressure modifier valve, and prevents its pulsation.
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3-4 shift valve
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Automatically shifts between 3GR and 4GR based on solenoid valve ON-OFF signals controlled by the PCM.
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TCC shift valve
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Controls TCC operation based on solenoid valve ON-OFF signals controlled by the PCM.
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Coast timing valve
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Controls coasting clutch application timing.
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Pressure modifier valve
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Converts solenoid reducing pressure to modifier pressure that matches accelerator pedal depression degrees (engine output).
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2-3 shift valve
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Automatically shifts between 2GR and 3GR based on solenoid valve ON-OFF signals controlled by the PCM.
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1-2 shift valve
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Automatically shifts between 1GR and 2GR based on solenoid valve ON-OFF signals controlled by the PCM.
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Low reducing valve
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While in 1 range 1GR, reduces shift shock during 2GR→1GR shifting by reducing low and reverse brake application pressure and capacity.
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Solenoid reducing valve
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Converts line pressure into solenoid reducing pressure which acts on the pressure control solenoid.
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Converter relief valve
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Prevents torque converter pressure from exceeding a specified level.
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2-3 timing valve
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Controls 2-4 brake release pressure and 3-4 clutch pressure during 2GR→3GR shifting.
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Pressure regulator valve
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Adjusts line pressure generated by the oil pump to pressure that matches each driving condition.
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Manual valve
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Switches line pressure paths when the selector lever is shifted.
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2-3 accumulator*
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Reduces shift shock generated during 2GR→3GR shifting, by moderating rapid hydraulic pressure increase when the 3-4 clutch is applied.
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