Kickdown cutoff - RA27057229280X(27-9280)
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To enable the engine to be utilized up to its maximum speed for a kickdown shift, the kickdown shift is superimposed hydraulically over maximum engine speed. The current for the kickdown solenoid valve is interrupted briefly before maximum engine speed is reached by the fuel pump relay and the kickdown cutoff relay (N15) and compressor cutoff control unit (N6).
This ensures that the transmission shifts up into the next-higher gear shortly before the engine reaches its maximum speed.