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SHIFT PRESSURE CONTROL (LEARNING CONTROL) [ET6A-EL (US)]

SHIFT PRESSURE CONTROL (LEARNING CONTROL) [ET6A-EL (US)]

SM2780920


id0517n13627x5



Outline

• The TCM optimizes the hydraulic pressure for clutch engagement and disengagement through learning correction of the clutch engagement pressure.
Note
• The clutch engagement learning value is not recorded in the TCM installed to the control valve body for the replacement. If the clutch engagement learning value is not recorded in the TCM, engine racing may occur or shift shock may increase. Therefore, when the control valve body is replaced, always perform the initial learning.



Construction

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Operation

• The TCM learns engine performance changes resulting from past shifting and deterioration over time of the transaxle and performs learning correction for optimum clutch engagement pressure during initial shifting.