Nissan Versa (N17): Line pressure control

Nissan Versa 2nd generation (N17) Service Manual / Transmission & driveline / Transaxle & transmission (TM) / Line pressure control

LINE PRESSURE CONTROL : System Description

SYSTEM DIAGRAM

SYSTEM DIAGRAM

DESCRIPTION

Highly accurate line pressure control (secondary pressure control) reduces friction for improvement of fuel economy.

Normal Oil Pressure Control

Appropriate line pressure and secondary pressure suitable for driving condition are determined based on the accelerator pedal position, engine speed, primary pulley (input) speed, secondary pulley (output) speed, vehicle speed, input torque, stop lamp switch signal, transmission range switch signal, lock-up signal, power voltage, target shift ratio, oil temperature and oil pressure.

Secondary Pressure Feedback Control

In normal oil pressure control and oil pressure control in shifting, highly accurate secondary pressure is determined by detecting the secondary pressure using a oil pressure sensor and by feedback control.

Shift control

SHIFT CONTROL : System Description SYSTEM DIAGRAM DESCRIPTION To select the gear ratio that can give the driving force to meet driver's intent or vehicle situation, the vehicle driving con ...

Other materials:

Vehicle Dynamic Control (VDC) system (if so equipped)
The VDC system uses various sensors to monitor driver inputs and vehicle motion. Under certain driving conditions, the VDC System helps to perform the following functions: Controls brake pressure to reduce wheel slip on one slipping drive wheel so power is transferred to a non slipping drive w ...

P1715 Input speed sensor
Description ECM receives input speed sensor signal from TCM via the CAN communication line. ECM uses this signal for engine control. DTC Logic DTC DETECTION LOGIC NOTE: If DTC P1715 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX. If DTC P1715 is displa ...

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