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.
2017 Infiniti QX30 BaseFACTORY OEM SERVICE PROCEDURE
DTC Index
| DTC* | Items (CONSULT screen terms) |
Reference |
|---|---|---|
| U0100 | Communication error | DTC DESCRIPTION |
| U0111 | COMMUNICATION ERROR (LOST) | DTC DESCRIPTION |
| U0155 | COMMUNICATION ERROR (LOST) | DTC DESCRIPTION |
| U0168 | COMMUNICATION ERROR (LOST) | DTC DESCRIPTION |
| U0401 | Communication error (invalid) | DTC DESCRIPTION |
| U0427 | COMMUNICATION ERROR (INVALID) | DTC DESCRIPTION |
| B210D | Power supply | DTC DESCRIPTION |
| B210E | Power supply | DTC DESCRIPTION |
| P0087 | FUEL RAIL/SYSTEM PRESSURE | DTC DESCRIPTION |
| P008A | Low pressure fuel system pressure | DTC DESCRIPTION |
| P0627 | FUEL PUMP A CONTROL | DTC DESCRIPTION |
| P0628 | FUEL PUMP A CONTROL | DTC DESCRIPTION |
| P0629 | FUEL PUMP A CONTROL | DTC DESCRIPTION |
| P0A7C | MOTOR ELECTRONICS OVER TEMP | DTC DESCRIPTION |
| P1240 | CAN BUS | DTC DESCRIPTION |
| P2539 | LOW PRESS FUEL SYSTEM SENSOR | DTC DESCRIPTION |
| P2540 | LOW PRESS FUEL SYSTEM SENSOR | DTC DESCRIPTION |
| P2541 | LOW PRESS FUEL SYSTEM SENSOR | DTC DESCRIPTION |
| P2542 | LOW PRESS FUEL SYSTEM SENSOR | DTC DESCRIPTION |
*: This number is prescribed by SAE J2012/ISO 15031-6.
Factory Service Tools
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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.