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.
2010 Infiniti M45 BaseFACTORY OEM SERVICE PROCEDURE
Engine Control System - DTCS P0460 To P1421
- DTC P0460 Fuel Level Sensor
- DTC P0461 Fuel Level Sensor
- DTC P0462, P0463 Fuel Level Sensor Circuit
- DTC P0500 VSS
- DTC P0506 ISC System
- DTC P0507 ISC System
- DTC P0550 PSP Sensor
- DTC P0603 ECM Power Supply
- DTC P0605 ECM
- DTC P0607 ECM
- DTC P0643 Sensor Power Supply
- DTC P0850 PNP Switch
- DTC P1140, P1145 IVT Control Position Sensor
- DTC P1148, P1168 Closed Loop Control
- DTC P1211 TCS Control Unit
- 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 P1421 Cold Start Control
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.