System Description

DESIGN/PURPOSE 

When engine oil pressure is low, the engine oil pressure warning 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 

Not applicable

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 calculates an engine oil pressure according to a signal transmitted from the engine oil pressure sensor.

After engine running when the engine oil pressure is low and at least 5 seconds, ECM transmits the engine oil pressure warning signal to combination meter via CAN communication. Then the engine oil pressure warning displays.

LIGHTING CONDITION 

When all of the following conditions for at least 5 seconds are satisfied:

• Ignition switch: ON
• Engine oil pressure is less than specified value.
• Engine speed is more than 170 rpm.

SHUTOFF CONDITION 

When any of the following conditions is satisfied:

• Ignition switch: OFF
• Engine oil pressure is the specified value or more.
• Engine speed is less than 170 rpm.

TIMING CHART 

Courtesy of NISSAN NORTH AMERICA, INC.

t: 100 ms