Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2015 Infiniti QX80 Base, AWDFACTORY OEM SERVICE PROCEDURE
Component Description
| Component | Reference |
|---|---|
| ECM | ECM |
| Malfunction indicator lamp (MIL) | MALFUNCTION INDICATOR LAMP (MIL) |
| Ignition coil with power transistor | IGNITION COIL WITH POWER TRANSISTOR |
| Accelerator pedal position sensor | ACCELERATOR PEDAL POSITION SENSOR |
| Mass air flow sensor | MASS AIR FLOW SENSOR (WITH INTAKE AIR TEMPERATURE SENSOR) |
| Intake air temperature sensor | |
| Electric throttle control actuator | ELECTRIC THROTTLE CONTROL ACTUATOR |
| Throttle control motor relay | |
| Throttle control motor | |
| Throttle position sensor | |
| Crankshaft position sensor | CRANKSHAFT POSITION SENSOR |
| Camshaft position sensor | CAMSHAFT POSITION SENSOR |
| Engine coolant temperature sensor | ENGINE COOLANT TEMPERATURE SENSOR |
| High pressure fuel pump | HIGH PRESSURE FUEL PUMP |
| Low pressure fuel pump | LOW PRESSURE FUEL PUMP |
| Fuel pump control module (FPCM) | FUEL PUMP CONTROL MODULE |
| Fuel rail pressure sensor | FUEL RAIL PRESSURE SENSOR |
| Fuel injector | FUEL INJECTOR |
| Fuel level sensor | FUEL LEVEL SENSOR |
| Fuel tank temperature sensor | FUEL TANK TEMPERATURE SENSOR |
| A/F sensor 1 | AIR FUEL RATIO (A/F) SENSOR 1 |
| A/F sensor 1 heater | |
| Heated oxygen sensor 2 | HEATED OXYGEN SENSOR 2 |
| Heated oxygen sensor 2 heater | |
| Manifold absolute pressure sensor | MANIFOLD ABSOLUTE PRESSURE SENSOR |
| Knock sensor | KNOCK SENSOR |
| Engine oil temperature sensor | ENGINE OIL TEMPERATURE SENSOR |
| Power steering pressure sensor | POWER STEERING PRESSURE (PSP) SENSOR |
| Electrically-controlled cooling fan coupling | ELECTRICALLY-CONTROLLED COOLING FAN COUPLING |
| Intake valve timing control solenoid valve | INTAKE VALVE TIMING CONTROL SOLENOID VALVE |
| VVEL control module | VVEL CONTROL MODULE |
| VVEL actuator motor relay | VVEL ACTUATOR MOTOR RELAY |
| VVEL actuator motor | VVEL ACTUATOR MOTOR |
| VVEL control shaft position sensor | VVEL CONTROL SHAFT POSITION SENSOR |
| EVAP control system pressure sensor | EVAP CONTROL SYSTEM PRESSURE SENSOR |
| EVAP canister vent control valve | EVAP CANISTER VENT CONTROL VALVE |
| EVAP canister purge volume control solenoid valve | EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE |
| Battery current sensor (with battery temperature sensor) | BATTERY CURRENT SENSOR (WITH BATTERY TEMPERATURE SENSOR) |
| Refrigerant pressure sensor | REFRIGERANT PRESSURE SENSOR |
| Stop lamp switch | ASCD BRAKE SWITCH & STOP LAMP SWITCH |
| ASCD brake switch | |
| ASCD steering switch | ASCD STEERING SWITCH |
| Information display | SWITCH NAME AND FUNCTION |
| Stop lamp switch | ICC BRAKE SWITCH & STOP LAMP SWITCH |
| ICC brake switch | |
| ICC steering switch | ICC STEERING SWITCH |
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.
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