Toyota
Nissan Versa
 Sedan Service Manual
Engine » Engine control system (EC) » Engine control system
Oil Pressure Warning Lamp

Oil pressure warning lamp is located on the combination meter.

It indicates the low pressure of the engine oil and the malfunction of the engine oil pressure system.

Combination meter turns the oil pressure warning lamp ON/OFF according to the oil pressure warning lamp signal received from ECM via CAN communication.

Oil Pressure Warning Lamp

Refrigerant Pressure Sensor

The refrigerant pressure sensor is installed at the condenser of the air conditioner system. The sensor uses an electrostatic volume pressure transducer to convert refrigerant pressure to voltage. The voltage signal is sent to ECM, and ECM controls cooling fan system.

Refrigerant Pressure Sensor

Stop Lamp Switch & Brake Pedal Position Switch

Stop lamp switch and brake pedal position switch are installed to brake pedal bracket.

ECM detects the state of the brake pedal by those two types of input (ON/OFF signal).

Brake pedal Brake pedal position switch Stop lamp switch
Released ON OFF
Depressed OFF ON

Throttle Control Motor

The throttle control motor is operated by the ECM and it opens and closes the throttle valve.

The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feedback to the ECM to control the throttle valve in response to driving conditions via the throttle control motor.

Throttle Control Motor Relay

Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not provided to the ECM.

    More about «Engine control system»:

    Accelerator Pedal Position Sensor

    Air Fuel Ratio Sensor 1

    Air Fuel Ratio Sensor 1 Heater

    Battery Current Sensor

    Camshaft Position Sensor

    Crankshaft Position Sensor

    Engine Oil Temperature Sensor

    EVAP Canister Vent Control Valve

    Exhaust Valve Timing Control Solenoid Valve

    Fuel Injector

    Fuel Pump

    Heated Oxygen Sensor 2

    Intake Air Temperature Sensor

    Intake Valve Timing Control Solenoid Valve

    Malfunction Indicator Lamp (MIL)

    Mass Air Flow Sensor

    Oil Pressure Warning Lamp

    Throttle Position Sensor

    Nissan Versa Sedan Service Manual / Engine / Engine control system (EC) / Engine control system / Oil Pressure Warning Lamp

    Nissan Versa Sedan Service Manual

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