FixVault
Home › Infiniti › 2014 › Q50 Hybrid Premium, AWD › Repair and Diagnosis › Engine Performance › System › Engine Control System (Introduction) (Hybrid) › System Description › Component Parts › Engine Control System › ENGINE CONTROL SYSTEM: Component Parts Location

ENGINE CONTROL SYSTEM: Component Parts Location

Fig 1: Engine Control System Components Location (1 Of 5)
G09166127Courtesy of NISSAN NORTH AMERICA, INC.
No. Component Function
(1) Electric throttle control actuator (bank 1) "ELECTRIC THROTTLE CONTROL ACTUATOR "
(2) Mass air flow sensor (with intake air temperature sensor) (bank 1) "MASS AIR FLOW SENSOR "
(3) Mass air flow sensor (bank 2) "MASS AIR FLOW SENSOR "
(4) Electric throttle control actuator (bank 2) "ELECTRIC THROTTLE CONTROL ACTUATOR "
(5) Manifold absolute pressure sensor "MANIFOLD ABSOLUTE PRESSURE SENSOR "
(6) EVAP canister purge volume control solenoid valve "EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE "
Fig 2: Engine Control System Components Location (2 Of 5)
G09166128Courtesy of NISSAN NORTH AMERICA, INC.
No. Component Function
(1) Exhaust valve timing control solenoid valve (bank 1) "EXHAUST VALVE TIMING CONTROL POSITION SENSOR "
(2) Intake valve timing control solenoid valve (bank 1) "INTAKE VALVE TIMING CONTROL SOLENOID VALVE "
(3) Intake valve timing control solenoid valve (bank 2) "INTAKE VALVE TIMING CONTROL SOLENOID VALVE "
(4) Exhaust valve timing control solenoid valve (bank 2) "EXHAUST VALVE TIMING CONTROL POSITION SENSOR "
(5) Fuel injector (No. 2 cylinder) "FUEL INJECTOR "
(6) Ignition coil (with power transistor) and spark plug (No. 2 cylinder) "IGNITION COIL "
(7) Fuel injector (No. 4 cylinder) "FUEL INJECTOR "
(8) Ignition coil (with power transistor) and spark plug (No. 4 cylinder) "IGNITION COIL "
(9) Fuel injector (No. 6 cylinder) "FUEL INJECTOR "
(10) Ignition coil (with power transistor) and spark plug (No. 6 cylinder) "IGNITION COIL "
(11) Fuel injector (No. 5 cylinder) "FUEL INJECTOR "
(12) Ignition coil (with power transistor) and spark plug (No. 5 cylinder) "IGNITION COIL "
(13) Ignition coil (with power transistor) and spark plug (No. 3 cylinder) "IGNITION COIL "
(14) Ignition coil (with power transistor) and spark plug (No. 1 cylinder) "IGNITION COIL "
(15) Fuel injector (No. 3 cylinder) "FUEL INJECTOR "
(16) Fuel injector (No. 1 cylinder) "FUEL INJECTOR "
(17) Knock sensor (bank 1) "KNOCK SENSOR "
(18) Knock sensor (bank 2) "KNOCK SENSOR "
(19) Engine oil temperature sensor "ENGINE OIL TEMPERATURE SENSOR "
(20) Engine oil pressure sensor "ENGINE OIL PRESSURE SENSOR "
(21) Engine coolant temperature sensor "ENGINE COOLANT TEMPERATURE SENSOR "
(22) Camshaft position sensor (PHASE) (bank 2) "CAMSHAFT POSITION SENSOR (PHASE) "
(23) Exhaust valve timing control position sensor (bank 2) "EXHAUST VALVE TIMING CONTROL POSITION SENSOR "
(24) Crankshaft position sensor (POS) "CRANKSHAFT POSITION SENSOR (POS) "
(25) Exhaust valve timing control position sensor (bank 1) "EXHAUST VALVE TIMING CONTROL POSITION SENSOR "
(26) Camshaft position sensor (PHASE) (bank 1) "CAMSHAFT POSITION SENSOR (PHASE) "
Fig 3: Engine Control System Components Location (3 Of 5)
G09166129Courtesy of NISSAN NORTH AMERICA, INC.
No. Component Function
(1) A/F sensor 1 (bank 1) "AIR FUEL RATIO SENSOR 1 "
(2) A/F sensor 1 (bank 2) "AIR FUEL RATIO SENSOR 1 "
(3) Heated oxygen sensor 2 (bank 2) "HEATED OXYGEN SENSOR 2 "
(4) Heated oxygen sensor 2 (bank 1) "HEATED OXYGEN SENSOR 2 "
Fig 4: Engine Control System Components Location (For USA And Canada) (4 Of 5)
G09166130Courtesy of NISSAN NORTH AMERICA, INC.
No. Component Function
(1) A/C auto amp. ECM transmits/receives signals with A/C auto amp. via CAN communication line to control as follows.
  • Air conditioning cut control
  • Cooling fan control

Refer to "REMOVAL AND INSTALLATION " for installation.
(2) IPDM E/R IPDM E/R control the internal relays and the actuators.
When CAN communication with ECM is impossible, IPDM E/R performs fail-safe control.

Refer to "REMOVAL AND INSTALLATION " for installation.
(3) ECM "ECM "
ECM is located under the air cleaner cover (bank 1) and air cleaner body (bank 1).
(4) Refrigerant pressure sensor "REFRIGERANT PRESSURE SENSOR "
Refer to "REFRIGERANT PRESSURE SENSOR: REMOVAL AND INSTALLATION " for installation.
(5) Combination meter ECM transmits/receives signals with combination meter via CAN communication line to control as follows.
  • Multiport fuel injection system
  • Electric ignition system
  • Cooling fan control
  • Evaporative emission system
  • Fuel filler cap warning system

Refer to "REMOVAL AND INSTALLATION " for installation.
(6) HPCM ECM transmits/receives signals with HPCM via CAN communication line to control as follows.
  • Electric ignition system
  • Cooling fan control
  • Evaporative emission system
  • Fuel filler cap warning system

When CAN communication with ECM is impossible, HPCM performs fail-safe control.

Refer to "REMOVAL AND INSTALLATION " for installation.
(7) Cooling fan control module "COOLING FAN "
(8) Cooling fan motor-1 "COOLING FAN "
(9) Cooling fan motor-2 "COOLING FAN "
(10) Cooling fan relay "COOLING FAN "
(11) Stop lamp switch "STOP LAMP SWITCH & BRAKE PEDAL POSITION SWITCH "
(12) Brake pedal position switch "STOP LAMP SWITCH & BRAKE PEDAL POSITION SWITCH "
(13) Battery current sensor "BATTERY CURRENT SENSOR "
(14) EVAP canister vent control valve "EVAP CANISTER VENT CONTROL VALVE "
(15) EVAP canister EVAP canister stores the generated fuel vapors in the sealed fuel tank to activated charcoals of EVAP canister when the engine is not operating or when refueling to the fuel tank.
(16) EVAP control system pressure sensor "EVAP CONTROL SYSTEM PRESSURE SENSOR "
(17) Fuel level sensor "FUEL LEVEL SENSOR "
(18) Fuel tank temperature sensor "FUEL TANK TEMPERATURE SENSOR "
(19) Fuel pump "FUEL PUMP "
Fig 5: Engine Control System Components Location (For Mexico) (5 Of 5)
G09166131Courtesy of NISSAN NORTH AMERICA, INC.
No. Component Function
(1) A/C auto amp. ECM transmits/receives signals with A/C auto amp. via CAN communication line to control as follows.
  • Air conditioning cut control
  • Cooling fan control

Refer to "REMOVAL AND INSTALLATION " for installation.
(2) IPDM E/R IPDM E/R control the internal relays and the actuators.
When CAN communication with ECM is impossible, IPDM E/R performs fail-safe control.
(3) ECM "ECM "
ECM is located under the air cleaner cover (bank 1) and air cleaner body (bank 1).
(4) Refrigerant pressure sensor "REFRIGERANT PRESSURE SENSOR "
Refer to "REMOVAL AND INSTALLATION " for installation.
(5) Combination meter ECM transmits/receives signals with combination meter via CAN communication line to control as follows.
  • Multiport fuel injection system
  • Electric ignition system
  • Cooling fan control
  • Evaporative emission system
  • Fuel filler cap warning system

Refer to "REMOVAL AND INSTALLATION " for installation.
(6) HPCM ECM transmits/receives signals with HPCM via CAN communication line to control as follows.
  • Electric ignition system
  • Cooling fan control
  • Evaporative emission system
  • Fuel filler cap warning system

Refer to "REMOVAL AND INSTALLATION " for installation.
(7) Cooling fan control module "COOLING FAN "
(8) Cooling fan motor-1 "COOLING FAN "
(9) Cooling fan motor-2 "COOLING FAN "
(10) Cooling fan relay "COOLING FAN "
(11) Stop lamp switch "STOP LAMP SWITCH & BRAKE PEDAL POSITION SWITCH "
(12) Brake pedal position switch "STOP LAMP SWITCH & BRAKE PEDAL POSITION SWITCH "
(13) Battery current sensor "BATTERY CURRENT SENSOR "
(14) EVAP canister EVAP canister stores the generated fuel vapors in the sealed fuel tank to activated charcoals of EVAP canister when the engine is not operating or when refueling to the fuel tank.
(15) Atmospheric pressure sensor "ATMOSPHERIC PRESSURE SENSOR "
(16) Fuel level sensor "FUEL LEVEL SENSOR "
(17) Fuel tank temperature sensor "FUEL TANK TEMPERATURE SENSOR "
(18) Fuel pump "FUEL PUMP "
About FixVault