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.
2020 Infiniti QX80 LimitedFACTORY OEM SERVICE PROCEDURE
DTC Index
DTC INDEX
| DTC | Description |
|---|---|
| DTC C053C | WHEEL SPEED SENSOR |
| DTC P0011 | IVT CONTROL |
| DTC P0012 | INTAKE VALVE TIMING CONTROL |
| DTC P0014 | EVT CONTROL |
| DTC P0015 | EXHAUST VALVE TIMING CONTROL |
| DTC P0016 | INTAKE VALVE TIMING CONTROL |
| DTC P0017 | EXHAUST VALVE TIMING CONTROL |
| DTC P0018 | INTAKE VALVE TIMING CONTROL |
| DTC P0019 | EXHAUST VALVE TIMING CONTROL |
| DTC P0021 | IVT CONTROL |
| DTC P0022 | INTAKE VALVE TIMING CONTROL |
| DTC P0024 | EVT CONTROL |
| DTC P0025 | EXHAUST VALVE TIMING CONTROL |
| DTC P0030 | A/F SENSOR 1 HEATER |
| DTC P0031 | A/F SENSOR 1 HEATER |
| DTC P0032 | A/F SENSOR 1 HEATER |
| DTC P0037 | HO2S2 HEATER |
| DTC P0038 | HO2S2 HEATER |
| DTC P0050 | A/F SENSOR 1 HEATER |
| DTC P0051 | A/F SENSOR 1 HEATER |
| DTC P0052 | A/F SENSOR 1 HEATER |
| DTC P0053 | A/F SENSOR 1 HEATER |
| DTC P0057 | HO2S2 HEATER |
| DTC P0058 | HO2S2 HEATER |
| DTC P0059 | A/F SENSOR 1 HEATER |
| DTC P0075 | IVT CONTROL SOLENOID VALVE |
| DTC P0078 | EVT CONTROL SOLENOID VALVE |
| DTC P0081 | IVT CONTROL SOLENOID VALVE |
| DTC P0084 | EVT CONTROL SOLENOID VALVE |
| DTC P0087 | FRP CONTROL SYSTEM |
| DTC P0088 | FRP CONTROL SYSTEM |
| DTC P0090 | FUEL RAIL PRESSURE CONTROL SYSTEM |
| DTC P00B3 | ENGINE COOLANT TEMPERATURE SENSOR 2 |
| DTC P00B4 | ENGINE COOLANT TEMPERATURE SENSOR 2 |
| DTC P00D2 | HO2S2 HEATER |
| DTC P00D4 | HO2S2 HEATER |
| DTC P00FE | EVAP CONTROL SYSTEM |
| DTC P0101 | MAF SENSOR |
| DTC P0102 | MAF SENSOR |
| DTC P0103 | MAF SENSOR |
| DTC P0107 | ATMOSPHERIC PRESSURE SENSOR |
| DTC P0108 | ATMOSPHERIC PRESSURE SENSOR |
| DTC P0111 | IAT SENSOR |
| DTC P0112 | IAT SENSOR |
| DTC P0113 | IAT SENSOR |
| DTC P0116 | ECT SENSOR |
| DTC P0117 | ECT SENSOR |
| DTC P0118 | ECT SENSOR |
| DTC P0122 | TP SENSOR |
| DTC P0123 | TP SENSOR |
| DTC P0125 | ECT SENSOR |
| DTC P0127 | IAT SENSOR |
| DTC P0130 | A/F SENSOR 1 |
| DTC P0131 | A/F SENSOR 1 |
| DTC P0132 | A/F SENSOR 1 |
| DTC P0136 | HO2S2 |
| DTC P0137 | HO2S2 |
| DTC P0138 | HO2S2 |
| DTC P0139 | HO2S2 |
| DTC P014C | A/F SENSOR 1 |
Factory Service Tools
Use the Manual With the Right Hardware
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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.