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 | U0101, U0293, U1001, U1003, P31A5 | CAN communication line |
| P0101, P0102, P0103, P010B, P010C. P010D | Mass air flow sensor | |
| P0111, P0112, P0113, P0127 | Intake air temperature sensor | |
| P0117, P0118, P0125 | Engine coolant temperature sensor | |
| P0122, P0123, P0222, P0223, P0227, P0228, P1225, P1226, P1234, P1235, P1239, P2132, P2133, P2135 | Throttle position sensor | |
| P0128 | Thermostat function | |
| P0181, P0182, P0183 | Fuel tank temperature sensor | |
| P0196, P0197, P0198 | Engine oil temperature sensor | |
| P0201, P0202, P0203, P0204, P0205, P0206 | Fuel injector | |
| P0327, P0328, P0332, P0333 | Knock sensor | |
| P0335 | Crankshaft position sensor (POS) | |
| P0340, P0345 | Camshaft position sensor (PHASE) | |
| P0460, P0461, P0462, P0463 | Fuel level sensor | |
| P0500 | Vehicle speed sensor | |
| P0520 | Engine oil pressure sensor | |
| P0605, P0607 | ECM | |
| P0643 | Sensor power supply | |
| P0705 | Transmission range switch | |
| P1078, P1084 | Exhaust valve timing control position sensor | |
| P1550, P1551, P1552, P1553, P1554 | Battery current sensor | |
| 2 | P0031, P0032, P0051, P0052 | Air fuel ratio (A/F) sensor 1 heater |
| P0037, P0038, P0057, P0058 | Heated oxygen sensor 2 heater | |
| P0075, P0081 | Intake valve timing control solenoid valve | |
| P0078, P0084 | Exhaust valve timing control solenoid valve | |
| P0130, P0131, P0132, P0133, P014C, P014D, P014E, P014F, P0150, P0151, P0152, P0153, P2A00, P2A03 | Air fuel ratio (A/F) sensor 1 | |
| P0137, P0138, P0139, P0157, P0158, P0159 | 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 | |
| P0451, P0452, P0453 | EVAP control system pressure sensor | |
| P0603 | ECM power supply | |
| P0710, P0717, P0720, P0729, P0730, P0731, P0732, P0733, P0734, P0735, P0744, P0745, P0750, P0775, P0780, P0795, P1730, P1734, P2713, P2722, P2731, P2807 | A/T related sensors, solenoid valves and switches | |
| P1217 | Engine over temperature (OVERHEAT) | |
| P1233, P2101 | Electric throttle control function | |
| P1236, P2118 | Throttle control motor | |
| P1290, P2100, P2103 | Throttle control motor relay | |
| P1805 | Brake switch | |
| 3 | P0011, P0021 | Intake valve timing control |
| P0014, P0024 | Exhaust valve timing control | |
| P0171, P0172, P0174, P0175 | Fuel injection system function | |
| P0300 - P0306 | Misfire | |
| P0420, P0430 | Three way catalyst function | |
| P0456 | EVAP control system (VERY SMALL LEAK) | |
| P0506, P0507 | Idle speed control system | |
| P050A, P050B, P50E | Cold start control | |
| P1148, P1168 | Closed loop control | |
| P1238, P2119 | Electric throttle control actuator | |
| P1425 | Cold start control |