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

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Fuel filler cap warning system

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Other materials:

Line pressure test
Work Procedure INSPECTION Check the engine oil level. Replenish if necessary. Refer to LU "Inspection". Check for CVT fluid leaks. Refer to TM "Inspection". Drive for about 10 minutes to warm up the vehicle so that the CVT fluid temperature is 50 to 80C (122 to ...

VDC/TCS/ABS
Symptom Table If ABS warning lamp and SLIP indicator lamp turn ON, perform self-diagnosis. NOTE: The ABS does not operate when the speed is 10 km/h (6 MPH) or less. Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly depressed (just place ...

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