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Home >> Infiniti >> 2023 >> QX60 Autograph, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (1 Of 2) >> Ecu Diagnosis Information >> ECM >> DTC Inspection Priority Chart

DTC Inspection Priority Chart

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority chart.

Priority DTC Detected items
1 C053C Wheel speed sensor
U0122, U0146, U0155, U1000 CAN communication line
U012E, U042F, U0284, U1040 Engine communication line
U1050, U1051 LIN communication line
P0107, P0108 Barometric pressure sensor
P0101, P0102, P0103 Mass air flow sensor
P0111, P0112, P0113, P0127 Intake air temperature sensor
P0116, P0117, P0118, P0125 Engine coolant temperature sensor
P0122, P0123, P0222, P0223, P1225, P1226, P2135 Throttle position sensor
P0128 Thermostat function
P0181, P0182, P0183 Fuel tank temperature sensor
P0190, P0191, P0192, P0193, P119A, P119B, P119C FRP sensor
P0196, P0197, P0198 Engine oil temperature sensor
P026B, P2B96 Injection system
P0326, P0327, P0328, P0331, P0332, P0333 Knock sensor
P0315, P0335 Crankshaft position sensor
P0340, P0345 Intake camshaft position sensor
P0365, P0390 Exhaust camshaft position sensor
P0460, P0461, P0462, P0463 Fuel level sensor
P0500 Vehicle speed sensor
P0520 Engine oil pressure sensor
P0532, P0533 Refrigerant pressure sensor
P0604, P0605, P0606, P0607, P060A, P060B, P060C, P061B, P062B, P062D, P062E, P1603, P2610 ECM
P062F Control module
P0641, P23E9, P23EA, P23EB, P2614, P2615, P2616, P2617, P2618, P2619, P34C8 Electric intake valve timing control module
P0643, P06B0, P06B3, P06E6 Sensor power supply
P0850 Park/neutral position (PNP) switch
P1197 Out of gas*
P155B Energy management control
P155D, P155E, P155F Generator
P161D, P161E, P161F Immobilizer
P1650 Starter relay
P2122, P2123, P2127, P2128, P2138 Accelerator pedal position sensor
U1327, U214F, U2152, U2176 MAC key
U2118, U214F, U2150, U2152, U215B, U2176, U2241, U2248, U2252, U2259, U226B, U2276, P129A Network
2 P0010, P0020 intake valve timing control actuator
P0030, P0031, P0032, P0050, P0051, P0052 Air fuel ratio (A/F) sensor 1 heater
P0037, P0038, P0053, P0057, P0058, P0059, P00D2, P00D4 Heated oxygen sensor 2 heater
P0078, P0084 Exhaust valve timing control solenoid valve
P0090 FRP control system
P0130, P0131, P0132, P014C, P014D, P014E, P014F, P0150, P0151, P0152, P015A, P015B, P015C, P015D, P064D, P2096, P2097, P2098, P2099, P2237, P2238, P2239, P2240, P2241, P2242, P2251, P2252, P2253, P2254, P2255, P2256, P2297, P2298 Air fuel ratio (A/F) sensor 1
P0136, P0137, P0138, P0139, P0156, P0157, P0158, P0159, P2270, P2271, P2272, P2273, P2A01, P2A04 Heated oxygen sensor 2
P0441 EVAP control system purge flow monitoring
P0443, P0444, P0445 EVAP canister purge volume control solenoid valve
P0447, P0448 EVAP canister vent control valve
P0450, P0451, P0452, P0453, P0454 EVAP control system pressure sensor
P059F, P159F Active grille shutter
P0531 Refrigerant pressure sensor
P06DA, P06DB Engine oil pressure control solenoid valve
P1217 Engine over temperature (OVERHEAT)
P1800, P1801 VIAS control solenoid valve
P1575, P1805 Brake switch
P2100, P2103 Throttle control motor relay
P2101 Electric throttle control function
P2118 Throttle control motor
P34A4, P34A5, P34A6, P34A7, P34A8, P34A9, P34AA, P34AB, P34AC, P34AD, P34AE, P34AF, P34B0, P34B1, P34B2, P34B3, P34C4, P34C5 Electric intake valve timing control actuator
3 P0011, P0012, P0016, P0018, P0021, P0022 Intake valve timing control
P0014, P0015, P0017, P0019, P0024, P0025 Exhaust valve timing control
P0087, P0088 FRP control system
P00FE EVAP control system
P0171, P0172, P0174, P0175 Fuel injection system function
P01F0 Coolant temperature
P0201, P0202, P0203, P0204, P0205, P0206, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274, P0276, P0277, P10C8, P10C9, P10CA, P10CB, P10CC, P10CD Injector
P0300, P0301, P0302, P0303, P0304, P0305, P0306 Misfire
P0420, P0430 Three way catalyst function
P0456 EVAP control system (VERY SMALL LEAK)
P0506, P0507 Idle speed control system
P050A, P050B, P050E, P05EC, P2B95 Cold start control
P0524 Engine oil pressure
P1148, P1168 Closed loop control
P1526, P1536, P1538 ASCD function
P1564 ICC steering switch / ASCD steering switch
P1568 ICC command value
P1572 Brake pedal position switch
P1574 ICC vehicle speed sensor / ASCD vehicle speed sensor
P1A10 ECM initial learning in complete
P2119 Electric throttle control actuator
P219A, P219B Air fuel ratio
NOTE: SYMBOL *: If "P1197" is displayed with other DTC in priority 1, perform trouble diagnosis for "P1197" first.