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.
2018 Infiniti QX30 BaseFACTORY OEM SERVICE PROCEDURE
Automatic Transmission (Introduction And Basic Inspection)
- Precaution
- Preparation
- System Description
- Component Parts
- Structure And Operation
- Sectional View
- Sectional View
- Gear Set
- Control Valve Assembly
- Clutch operation
- Operation of internal shift mechanism
- Dual Clutch
- Synchronization
- Automatic Transmission (Introduction And Basic Inspection)
- Multiple-cone synchronization (3 cones, 1st to 3rd gear)
- Dual-cone synchronization (4th to 7th gear)
- Single-cone synchronization (reverse gear)
- System Description
- Fluid Cooler System
- Park Lock System
- Sectional View
- System
- On Board Diagnostic (OBD) System
- Diagnosis System (TCM)
- Diagnosis System (Electric Shift)
- Ecu Diagnosis Information
- Wiring Diagram
- Basic Inspection
- Diagnosis And Repair Work Flow
- Additional Service When Replacing TCM
- Additional Service When Replacing Control Valve
- Additional Service When Replacing Control Valve TCM
- Additional Service When Replacing Transaxle Assembly
- Additional Service When Replacing Dual Clutch
- Configuration (TCM)
- How To Erase Permanent DTC
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.
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