2024 Infiniti QX55 EssentialFACTORY OEM SERVICE PROCEDURE

Component Location

ENGINE ROOM COMPARTMENT 

GNSDB138821Courtesy of NISSAN NORTH AMERICA, INC.
SYMBOL Intake manifold SYMBOL Center front of engine compartment SYMBOL Left front of engine compartment
SYMBOL IPDM E/R SYMBOL Battery current sensor SYMBOL Mass air flow sensor
SYMBOL Active torque rod actuator SYMBOL Manifold absolute pressure sensor SYMBOL EVAP purge control solenoid valve
SYMBOL Intake manifold runner control valve position sensor SYMBOL Intake manifold runner control valve SYMBOL Electric throttle control actuator
SYMBOL Electric intake valve timing control module SYMBOL VCR control module SYMBOL ECM
SYMBOL TCM        

ENGINE COMPARTMENT 

GNSDB138677Courtesy of NISSAN NORTH AMERICA, INC.
SYMBOL Cylinder block left side SYMBOL Cylinder block right side    
SYMBOL Engine oil temperature sensor SYMBOL Engine oil pressure sensor SYMBOL Engine oil pressure control solenoid valve
SYMBOL Charge air cooler SYMBOL VCR actuator SYMBOL Turbocharger boost sensor (with intake air temperature intake air sensor 2)
SYMBOL Electric throttle control actuator SYMBOL PCV valve SYMBOL Ignition coil (with power transistor)
SYMBOL Electric intake valve timing control actuator SYMBOL Exhaust valve timing control solenoid valve SYMBOL Fuel rail pressure sensor
SYMBOL Direct fuel injector SYMBOL Knock sensor 1 SYMBOL Knock sensor 2
SYMBOL Port fuel injector SYMBOL High pressure fuel pump SYMBOL Intake camshaft position sensor
SYMBOL Exhaust camshaft position sensor SYMBOL Engine coolant temperature sensor 1 SYMBOL Multi-way control valve
SYMBOL Crankshaft position sensor SYMBOL Air fuel ratio (A/F) sensor 1 SYMBOL Electric wastegate control actuator
SYMBOL Turbocharger bypass control valve        

EXHAUST COMPARTMENT 

GNSDB139390Courtesy of NISSAN NORTH AMERICA, INC.
SYMBOL HEATED OXYGEN SENSOR-2        

BODY COMPARTMENT 

GNSDB140247Courtesy of NISSAN NORTH AMERICA, INC.
SYMBOL : Front of vehicle        
SYMBOL Left front of vehicle SYMBOL Pedal periphery SYMBOL Right rear undercarriage area
SYMBOL Inside fuel tank periphery SYMBOL Radiator right side area SYMBOL Radiator
SYMBOL Cooling fan motor SYMBOL Transmission range switch SYMBOL Combination meter
SYMBOL Fuel pump SYMBOL Fuel pump control module SYMBOL ICC steering switch/ProPILOT assist switch
SYMBOL Active Torque Rod control module SYMBOL Generator SYMBOL Relay box
SYMBOL Brake pedal position switch SYMBOL Stop lamp switch SYMBOL Accelerator pedal position sensor
SYMBOL EVAP control system pressure sensor SYMBOL EVAP canister SYMBOL EVAP canister vent control valve
SYMBOL Fuel level sensor SYMBOL Fuel tank temperature sensor SYMBOL Refrigerant pressure sensor
SYMBOL Engine coolant temperature sensor 2        
Chapter Navigation
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Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.