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Home >> Nissan-Datsun >> 2019 >> Versa Note SR >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (Introduction And Basic Inspection) >> System Description >> Component Parts >> Air Fuel Ratio Sensor 1 Heater >> System Description

System Description

Sensor

Input Signal to ECM

ECM function

Actuator

Camshaft position sensor (PHASE)

Crankshaft position sensor (POS)

Engine speed

Air fuel ratio (A/F) sensor 1 heater control

Air fuel ratio (A/F) sensor 1 heater

Mass air flow sensor

Amount of intake air

The ECM performs ON/OFF duty control of the A/F sensor 1 heater corresponding to the engine operating condition to keep the temperature of A/F sensor 1 element within the specified range.

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