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.
2018 Infiniti QX60 AWDFACTORY OEM SERVICE PROCEDURE
Engine Control System DTCS
ENGINE CONTROL SYSTEM (1 OF 6) DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC U0101 | CAN COMM CIRCUIT |
| DTC U012E | ENGINE COMMUNICATION |
| DTC U042F | ENGINE COMMUNICATION |
| DTC U1000 | CAN COMMUNICATION CIRCUIT |
| DTC U1001 | CAN COMM CIRCUIT |
| DTC P0010 | INTAKE VALVE TIMING CONTROL |
| DTC P0011 | INTAKE VALVE TIMING CONTROL |
| DTC P0012 | INTAKE VALVE TIMING CONTROL |
| DTC P0014 | EXHAUST VALVE TIMING 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 P0020 | INTAKE VALVE TIMING CONTROL |
| DTC P0021 | INTAKE VALVE TIMING CONTROL |
| DTC P0022 | INTAKE VALVE TIMING CONTROL |
| DTC P0024 | EXHAUST VALVE TIMING 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 P0078 | EVT CONTROL SOLENOID VALVE |
| DTC P0084 | EVT CONTROL SOLENOID VALVE |
| DTC P0087 | FRP CONTROL SYSTEM |
| DTC P0088 | FRP CONTROL SYSTEM |
| DTC P0090 | HIGH PRESSURE FUEL PUMP |
| DTC P00D2, P00D4 | HEATED OXYGEN SENSOR 2 HEATER |
| DTC P00FE | EVAP CONTROL SYSTEM |
| DTC P0101 | MAF SENSOR |
| DTC P0102 | MAF SENSOR |
| DTC P0103 | MAF SENSOR |
| DTC P0107, P0108 | BAROMETRIC PRESSURE SENSOR |
| DTC P0111 | IAT SENSOR |
| DTC P0112 | IAT SENSOR |
| DTC P0113 | IAT SENSOR |
| DTC P0116 | ENGINE COOLANT TEMPERATURE SENSOR |
ENGINE CONTROL SYSTEM (2 OF 6) DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC P0117 | ENGINE COOLANT TEMPERATURE SENSOR |
| DTC P0118 | ENGINE COOLANT TEMPERATURE SENSOR |
| DTC P0122 | TP SENSOR |
| DTC P0123 | TP SENSOR |
| DTC P0125 | ECT SENSOR |
| DTC P0127 | IAT SENSOR |
| DTC P0128 | THERMOSTAT FUNCTION |
| 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 |
| DTC P014D | A/F SENSOR 1 |
| DTC P014E | A/F SENSOR 1 |
| DTC P014F | A/F SENSOR 1 |
| DTC P0150 | A/F SENSOR 1 |
| DTC P0151 | A/F SENSOR 1 |
| DTC P0152 | A/F SENSOR 1 |
| DTC P0156 | HO2S2 |
| DTC P0157 | HO2S2 |
| DTC P0158 | HO2S2 |
| DTC P0159 | HO2S2 |
| DTC P015A | A/F SENSOR 1 |
| DTC P015B | A/F SENSOR 1 |
ENGINE CONTROL SYSTEM (3 OF 6) DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC P015C | A/F SENSOR 1 |
| DTC P015D | A/F SENSOR 1 |
| DTC P0171 | FUEL INJECTION SYSTEM FUNCTION |
| DTC P0172 | FUEL INJECTION SYSTEM FUNCTION |
| DTC P0174 | FUEL INJECTION SYSTEM FUNCTION |
| DTC P0175 | FUEL INJECTION SYSTEM FUNCTION |
| DTC P0181 | FTT SENSOR |
| DTC P0182 | FTT SENSOR |
| DTC P0183 | FTT SENSOR |
| DTC P0190 | FRP SENSOR |
| DTC P0191 | FRP SENSOR |
| DTC P0192 | FRP SENSOR |
| DTC P0193 | FRP SENSOR |
| DTC P0196 | EOT SENSOR |
| DTC P0197 | EOT SENSOR |
| DTC P0198 | EOT SENSOR |
| DTC P0201 | FUEL INJECTOR |
| DTC P0202 | FUEL INJECTOR |
| DTC P0203 | FUEL INJECTOR |
| DTC P0204 | FUEL INJECTOR |
| DTC P0205 | FUEL INJECTOR |
| DTC P0206 | FUEL INJECTOR |
| DTC P0222 | TP SENSOR |
| DTC P0223 | TP SENSOR |
| DTC P0300 | MISFIRE |
| DTC P0301 | MISFIRE |
| DTC P0302 | MISFIRE |
| DTC P0303 | MISFIRE |
| DTC P0304 | MISFIRE |
| DTC P0305 | MISFIRE |
| DTC P0306 | MISFIRE |
| DTC P0315 | CRANKSHAFT POSITION |
| DTC P0326 | KNOCK SENSOR |
| DTC P0327 | KS |
| DTC P0328 | KS |
| DTC P0332 | KS |
| DTC P0333 | KS |
| DTC P0335 | CRANKSHAFT POSITION SENSOR |
ENGINE CONTROL SYSTEM (4 OF 6) DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC P0340 | CMP SENSOR |
| DTC P0345 | CMP SENSOR |
| DTC P0365 | EXHAUST CAMSHAFT POSITION SENSOR |
| DTC P0390 | EXHAUST CAMSHAFT POSITION SENSOR |
| DTC P0420 | THREE WAY CATALYST FUNCTION |
| DTC P0430 | THREE WAY CATALYST FUNCTION |
| DTC P0441 | EVAP CONTROL SYSTEM |
| DTC P0443 | EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE |
| DTC P0444 | EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE |
| DTC P0445 | EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE |
| DTC P0447 | EVAP CANISTER VENT CONTROL VALVE |
| DTC P0448 | EVAP CANISTER VENT CONTROL VALVE |
| DTC P0451 | EVAP CONTROL SYSTEM PRESSURE SENSOR |
| DTC P0452 | EVAP CONTROL SYSTEM PRESSURE SENSOR |
| DTC P0453 | EVAP CONTROL SYSTEM PRESSURE SENSOR |
| DTC P0454 | EVAP CONTROL SYSTEM PRESSURE SENSOR |
| DTC P0456 | EVAP CONTROL SYSTEM |
| DTC P0460 | FUEL LEVEL SENSOR |
| DTC P0461 | FUEL LEVEL SENSOR |
| DTC P0462 | FUEL LEVEL SENSOR |
| DTC P0463 | FUEL LEVEL SENSOR |
| DTC P0500 | VSS |
| DTC P0506 | ISC SYSTEM |
| DTC P0507 | ISC SYSTEM |
| DTC P050A | COLD START CONTROL |
| DTC P050B | COLD START CONTROL |
| DTC P050E | COLD START CONTROL |
| DTC P0520 | EOP SENSOR |
| DTC P0524 | ENGINE OIL PRESSURE |
| DTC P0603 | ECM |
| DTC P0604 | ECM |
| DTC P0605 | ECM |
| DTC P0606 | ECM |
| DTC P0607 | ECM |
| DTC P060A | ECM |
| DTC P060B | ECM |
| DTC P0611 | ECM PROTECTION |
| DTC P062B | ECM |
| DTC P062F | CONTROL MODULE |
| DTC P0641 | SENSOR POWER SUPPLY |
| DTC P0643 | SENSOR POWER SUPPLY |
| DTC P06DA | ENGINE OIL PRESSURE CONTROL SOLENOID VALVE |
| DTC P06DB | ENGINE OIL PRESSURE CONTROL SOLENOID VALVE |
| DTC P0850 | PNP SWITCH |
| DTC P1140 | INTAKE CAMSHAFT POSITION SENSOR |
| DTC P1145 | INTAKE CAMSHAFT POSITION SENSOR |
| DTC P1148 | CLOSED LOOP CONTROL |
| DTC P1168 | CLOSED LOOP CONTROL |
| DTC P1197 | OUT OF GAS |
| DTC P119A | FUEL RAIL PRESSURE SENSOR |
| DTC P119B | FUEL RAIL PRESSURE SENSOR |
| DTC P119C | FUEL RAIL PRESSURE SENSOR |
| DTC P1212 | TCS COMMUNICATION LINE |
| DTC P1217 | ENGINE OVER TEMPERATURE |
| DTC P1220 | FUEL PUMP CONTROL MODULE (FPCM) |
| DTC P1225 | TP SENSOR |
| DTC P1226 | TP SENSOR |
| DTC P1423 | COLD START CONTROL |
| DTC P1424 | COLD START CONTROL |
ENGINE CONTROL SYSTEM (5 OF 6) DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC P1564 | ASCD STEERING SWITCH |
| DTC P1564 | ICC STEERING SWITCH |
| DTC P1568 | ICC FUNCTION |
| DTC P1572 | BRAKE PEDAL POSITION SWITCH |
| DTC P1554 | ASCD VEHICLE SPEED SENSOR |
| DTC P1554 | ICC VEHICLE SPEED SENSOR |
| DTC P1554 | BRAKE SWITCH |
| DTC P1800 | VIAS CONTROL SOLENOID VALVE 1 |
| DTC P1801 | VIAS CONTROL SOLENOID VALVE 2 |
| DTC P1805 | STOP LAMP SWITCH |
| DTC P2096 | A/F SENSOR 1 |
| DTC P2097 | A/F SENSOR 1 |
| DTC P2098 | A/F SENSOR 1 |
| DTC P2099 | A/F SENSOR 1 |
| DTC P2100 | THROTTLE CONTROL MOTOR RELAY |
| DTC P2101 | ELECTRIC THROTTLE CONTROL FUNCTION |
| DTC P2103 | THROTTLE CONTROL MOTOR RELAY |
| DTC P2118 | THROTTLE CONTROL MOTOR |
| DTC P2119 | ELECTRIC THROTTLE CONTROL ACTUATOR |
| DTC P2122 | APP SENSOR |
| DTC P2123 | APP SENSOR |
| DTC P2127 | APP SENSOR |
| DTC P2128 | APP SENSOR |
| DTC P2135 | TP SENSOR |
| DTC P2138 | APP SENSOR |
| DTC P219A | AIR FUEL RATIO |
| DTC P219B | AIR FUEL RATIO |
| DTC P219C, P219D, P219E, P219F, P21A0, P21A1 | AIR FUEL RATIO |
| DTC P2237 | A/F SENSOR 1 |
| DTC P2238 | A/F SENSOR 1 |
| DTC P2239 | A/F SENSOR 1 |
| DTC P2240 | A/F SENSOR 1 |
| DTC P2241 | A/F SENSOR 1 |
| DTC P2242 | A/F SENSOR 1 |
| DTC P2251 | A/F SENSOR 1 |
| DTC P2252 | A/F SENSOR 1 |
| DTC P2253 | A/F SENSOR 1 |
| DTC P2254 | A/F SENSOR 1 |
| DTC P2255 | A/F SENSOR 1 |
| DTC P2256 | A/F SENSOR 1 |
| DTC P2270 | HO2S2 |
ENGINE CONTROL SYSTEM (6 OF 6) DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC P2271 | HO2S2 |
| DTC P2272 | HO2S2 |
| DTC P2273 | HO2S2 |
| DTC P23E9 | INTAKE CAMSHAFT POSITION SENSOR |
| DTC P23EA | INTAKE CAMSHAFT POSITION SENSOR |
| DTC P23EB | INTAKE CAMSHAFT POSITION SENSOR |
| DTC P2610 | ECM INTERNAL TIMER |
| DTC P2614 | INTAKE CAMSHAFT POSITION SENSOR |
| DTC P2615 | INTAKE CAMSHAFT POSITION SENSOR |
| DTC P2616 | INTAKE CAMSHAFT POSITION SENSOR |
| DTC P2617 | CRANKSHAFT POSITION SENSOR |
| DTC P2618 | CRANKSHAFT POSITION SENSOR |
| DTC P2619 | CRANKSHAFT POSITION SENSOR |
| DTC P2A01 | HO2S2 |
| DTC P2A04 | HO2S2 |
| DTC P34A4 | ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR |
| DTC P34A5 | ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR |
| DTC P34A6 | ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR |
| DTC P34A7 | ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR |
| DTC P34A8 | ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR |
| DTC P34A9 | ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR |
| DTC P34AA | ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR |
| DTC P34AB | ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR |
| DTC P34AC | ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR |
| DTC P34AD | ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR |
| DTC P34B0 | ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR |
| DTC P34B1 | ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR |
| DTC P34C4 | ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR |
| DTC P34C5 | ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR |
| DTC P34C8 | ELECTRIC INTAKE VALVE TIMING CONTROL MODULE |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.