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 QX70 AWDFACTORY OEM SERVICE PROCEDURE
System Diagram
| 1. | ECM | 2. | CAN Communication | 3. | VVEL Control Module |
| 4. | EVAP Canister Purge Volume Control Solenoid Valve | 5. | EVAP Service Port | 6. | EVAP Canister Vent Control Valve |
| 7. | EVAP Control System Pressure Sensor | 8. | EVAP Canister | 9. | Battery Current Sensor |
| 10. | Battery | 11. | Fuel Tank Temperature Sensor | 12. | Fuel Level Sensor |
| 13. | Fuel Tank | 14. | Fuel Pressure Regulator | 15. | Fuel Pump |
| 16. | Three Way Catalyst 2 | 17. | Heated Oxygen Sensor 2 | 18. | Three Way Catalyst 1 |
| 19. | Engine Oil Temperature Sensor | 20. | A/F Sensor 1 | 21. | Spark Plug |
| 22. | PCV Valve | 23. | Ignition Coil (With Power Transistor) | 24. | VVEL Actuator Motor |
| 25. | VVEL Control Shaft Position Sensor | 26. | Intake Valve Timing Control Solenoid Valve | 27. | Camshaft Position Sensor (PHASE) |
| 28. | Fuel Damper | 29. | Engine Coolant Temperature Sensor | 30. | Knock Sensor |
| 31. | Crankshaft Position Sensor (POS) | 32. | Muffler | 33. | Cooling Fan Control Module-1 |
| 34. | Cooling Fan | 35. | Air Cleaner | 36. | Mass Air Flow Sensor (With Intake Air Temperature Sensor) |
| 37. | Electric Throttle Control Actuator | 38. | Throttle Position Sensor | 39. | Manifold Absolute Pressure (MAP) Sensor |
| 40. | Brake Booster Pressure Sensor* | 41. | MIL | 42. | Ignition Switch |
| 43. | Accelerator Pedal Position Sensor | 44. | Power Steering Pressure Sensor | 45. | Refrigerant Pressure Sensor |
| 46. | PNP Signal | ||||
| *: Not applicable | |||||
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.
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