Nissan Versa (N17): Engine protection control at low engine oil pressure

Nissan Versa 2nd generation (N17) Service Manual / Engine / Engine control system (EC) / Engine protection control at low engine oil pressure

Engine protection control at low engine oil pressure : system diagram

Engine protection control at low engine oil pressure : system diagram

Engine protection control at low engine oil pressure : system description

INPUT/OUTPUT SIGNAL CHART

Sensor Input signal to ECM ECM function Actuator
Engine oil pressure sensor Engine pressure Engine protection control

- Oil pressure warning lamp signal

Combination meter

- Oil pressure warning lamp

Crankshaft position sensor (POS) Engine speed

SYSTEM DESCRIPTION

  • The engine protection control at low engine oil pressure warns the driver of a decrease in engine oil pressure by the oil pressure warning lamp a before the engine becomes damaged.
  • When detecting a decrease in engine oil pressure at an engine speed less than 1,000 rpm, ECM transmits an oil pressure warning lamp signal to the combination meter. The combination meter turns ON the oil pressure warning lamp, according to the signal.
Decrease in engine oil pressure Engine speed Combination meter
Oil pressure warning lamp
Detection Less than 1,000 rpm ON*
1,000 rpm or more ON

Exhaust valve timing control

Exhaust valve timing control : system diagram Exhaust valve timing control : system description INPUT/OUTPUT SIGNAL CHART Sensor Input signal to ECM ECM function Actuator ...

Fuel filler cap warning system

FUEL FILLER CAP WARNING SYSTEM : System Diagram FUEL FILLER CAP WARNING SYSTEM : System Description INPUT/OUTPUT SIGNAL CHART Input Unit/Sensor Input signal to ECM ECM function ...

Other materials:

Engine cooling system
The engine cooling system is filled at the factory with a pre-diluted mixture of 50% Genuine NISSAN Long Life Antifreeze/Coolant (blue) and 50% water to provide year-round antifreeze and coolant protection. The antifreeze solution contains rust and corrosion inhibitors. Additional engine cooli ...

P0507 ISC system
Description The ECM controls the engine idle speed to a specified level through the fine adjustment of the air, which is let into the intake manifold, by operating the electric throttle control actuator. The operating of the throttle valve is varied to allow for optimum control of the engine ...

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