LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2016 >> QX50 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnostic Trouble Codes (DTCS) (P0011-P0445) >> DTC Index
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Index

DTC INDEX

DTC Description
DTC P0011, P0021  INTAKE VALVE TIMING CONTROL PERFORMANCE
DTC P0031, P0032, P0051, P0052  AIR/FUEL RATIO SENSOR 1 HEATER CIRCUIT LOW/HIGH
DTC P0037, P0038, P0057, P0058  HO2S2 HEATER CIRCUIT LOW/HIGH
DTC P0075, P0081  INTAKE VALVE TIMING CONTROL SOLENOID VALVE CIRCUIT
DTC P0101, P010B  MASS AIR FLOW SENSOR CIRCUIT RANGE/PERFORMANCE
DTC P0102, P0103, P010C, P010D  MASS AIR FLOW SENSOR CIRCUIT LOW/HIGH INPUT
DTC P0111  INTAKE AIR TEMPERATURE SENSOR CIRCUIT RANGE/PERFORMANCE
DTC P0112, P0113  INTAKE AIR TEMPERATURE SENSOR CIRCUIT LOW/HIGH INPUT
DTC P0116  ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT RANGE/PERFORMANCE
DTC P0117, P0118  ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT LOW/HIGH INPUT
DTC P0122, P0123, P0227, P0228  THROTTLE POSITION SENSOR CIRCUIT LOW/HIGH INPUT
DTC P0125  ENGINE COOLANT TEMPERATURE SENSOR CLOSED LOOP COOLANT TEMP
DTC P0127  INTAKE AIR TEMPERATURE SENSOR TEMP TOO HIGH
DTC P0128  THERMOSTAT FUNCTION
DTC P0130, P0150  AIR/FUEL RATIO SENSOR 1 CIRCUIT
DTC P0131, P0151  AIR/FUEL RATIO SENSOR 1 CIRCUIT LOW VOLTAGE
DTC P0132, P0152  AIR/FUEL RATIO SENSOR 1 CIRCUIT HIGH VOLTAGE
DTC P0137, P0157  HO2S2 CIRCUIT LOW VOLTAGE
DTC P0138, P0158  HO2S2 CIRCUIT HIGH VOLTAGE
DTC P0139, P0159  HO2S2 CIRCUIT SLOW RESPONSE
DTC P014C, P014D, P014E, P014F, P015A, P015B, P015C, P015D  AIR/FUEL RATIO SENSOR 1 CIRCUIT SLOW/DELAYED RESPONSE
DTC P0171, P0174  FUEL INJECTION SYSTEM TOO LEAN
DTC P0172, P0175  FUEL INJECTION SYSTEM TOO RICH
DTC P0181  FUEL TANK TEMPERATURE SENSOR CIRCUIT RANGE/PERFORMANCE
DTC P0182, P0183  FUEL TANK TEMPERATURE SENSOR CIRCUIT LOW/HIGH INPUT
DTC P0196  ENGINE OIL TEMPERATURE SENSOR RANGE/PERFORMANCE
DTC P0197, P0198  ENGINE OIL TEMPERATURE SENSOR CIRCUIT LOW/HIGH INPUT
DTC P0222, P0223, P2132, P2133  THROTTLE POSITION SENSOR CIRCUIT LOW/HIGH INPUT
DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306  CYLINDER MISFIRE
DTC P0327, P0328, P0332, P0333  KNOCK SENSOR CIRCUIT LOW/HIGH INPUT
DTC P0335  CRANKSHAFT POSITION SENSOR (POS) CIRCUIT
DTC P0340, P0345  CAMSHAFT POSITION SENSOR (PHASE) CIRCUIT
DTC P0420, P0430  THREE WAY CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD
DTC P0441  EVAP CONTROL SYSTEM INCORRECT PURGE FLOW
DTC P0443  EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
DTC P0444, P0445  EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE CIRCUIT OPEN/SHORTED