Input/Output Signal Chart

Sensor

Input signal to ECM

ECM function

Actuator

Crankshaft position sensor (POS)

Engine speed⁽¹⁾

EVAP canister purge flow control

EVAP canister purge volume control solenoid valve

Camshaft position sensor (PHASE)

Mass air flow sensor

Amount of intake air

Engine coolant temperature sensor

Engine coolant temperature

Air fuel ratio (A/F) sensor 1

Density of oxygen in exhaust gas (Mixture ratio feedback signal)

Throttle position sensor

Throttle position

Accelerator pedal position sensor

Accelerator pedal position

Battery

Battery voltage⁽¹⁾

Combination meter

CAN communication

Vehicle speed signal

⁽¹⁾	ECM determines the start signal status by the signals of engine speed and battery voltage.