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.
2013 Infiniti M35hFACTORY OEM SERVICE PROCEDURE
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 |
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.