PR25DD engine

DESIGN/PURPOSE 

When engine oil pressure is low, the engine oil pressure warning lamp informs the driver of low oil pressure to prevent damage to the engine.

Symbol	Message
Courtesy of NISSAN NORTH AMERICA, INC.	Low Oil Pressure Stop Vehicle

BULB CHECK 

The bulb turns ON after turning ON the ignition switch (engine stop) and turns OFF after restarting the engine.

OPERATION AT COMBINATION METER CAN COMMUNICATION CUT-OFF OR UNUSUAL SIGNAL 

For the operation for CAN communications blackout or abnormal signal reception, refer to Fail-safe .

SYSTEM DIAGRAM 

Courtesy of NISSAN NORTH AMERICA, INC.

SIGNAL PATH 

• ECM reads the resistance value of an engine oil pressure sensor and transmits the engine oil pressure warning signal to combination meter via CAN communication.
• The information display (on combination meter) is SHOWN/HIDDEN the engine oil pressure warning, according to the engine oil pressure sensor signal received from ECM.

LIGHTING CONDITION 

When all of the following conditions are satisfied:

• Ignition switch: ON
• Engine running
• Engine oil pressure is less than the specified value.

SHUTOFF CONDITION 

• Ignition switch: OFF
• Engine stop
• Engine oil pressure is the specified value or more.

TIMING CHART 

Courtesy of NISSAN NORTH AMERICA, INC.