2002 NISSAN MAXIMA User Manual

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System Chart

NFEC0013

Input (Sensor) ECM Function Output (Actuator)

I Camshaft position sensor (PHASE)

I Mass air flow sensor

I Engine coolant temperature sensor

I Heated oxygen sensor 1

I Ignition switch

I Throttle position sensor

I Accelerator pedal position sensor

I Park/neutral position (PNP) switch

I Air conditioner switch

I Knock sensor

I Intake air temperature sensor

I Absolute pressure sensor

I EVAP control system pressure sensor*1

I Battery voltage

I Power steering pressure sensor

I Vehicle speed (From combination meter)

I Fuel tank temperature sensor*1

I Crankshaft position sensor (POS)

I Heated oxygen sensor 2*2

I TCM (Transmission control module)*3

I Refrigerant pressure sensor

I Electrical load

I Fuel level sensor*1

I ASCD steering switch

I ASCD brake switch

I ASCD clutch switch (MT models)

I Stop lamp switch

Fuel injection & mixture ratio control Injectors

Electronic ignition system Power transistor

Fuel pump control Fuel pump relay

On board diagnostic system MIL (On the instrument panel)

ASCD vehicle speed control Electric throttle control actuator

Cooling fan control Cooling fan relays

Power valve control VIAS control solenoid valve

Heated oxygen sensor 1 heater control Heated oxygen sensor 1 heater

Heated oxygen sensor 2 heater control Heated oxygen sensor 2 heater

EVAP canister purge flow control

EVAP canister purge volume con-

trol solenoid valve

Air conditioning cut control Air conditioner relay

ON BOARD DIAGNOSIS for EVAP system

I EVAP canister vent control valve

I Vacuum cut valve bypass valve

*1: These sensors are not used to control the engine system. They are used only for the on board diagnosis.

*2: This sensor is not used to control the engine system under normal conditions.

*3: The signals are sent to the ECM through CAN communication line.

IDX

ENGINE AND EMISSION CONTROL OVERALL SYSTEM

System Chart

EC-31

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User Manual - Page 31