Back-up Control (Engine brake)

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If the selector lever is shifted to 2nd position while driving in D₄ (O/D) or D₃ , great driving force is applied to the clutch inside the transmission. Clutch operating pressure (line pressure) must be increased to deal with this driving force.

Fig 1: Line Pressure And Vehicle Speed Back-Up Control Graph

Courtesy of NISSAN MOTOR CO., U.S.A.