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.
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HOMESERVICE MANUALSINFINITI2002Q45 V8-4.5L (VK45DE)REPAIR AND DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTNAVIGATION SYSTEMNAVIGATION MODULESERVICE PRECAUTIONS
2002 Infiniti Q45 V8-4.5L (VK45DE)
Navigation Module: Service Precautions
2002 Infiniti Q45 V8-4.5L (VK45DE)SECTION Service Precautions
Precautions for AV and NAVI Control Unit Replacement
- When replacing the AV and NAVI control unit, eject the map DVD-ROM before disconnecting the battery.
- The AV and NAVI control unit has the following information stored in its memory. Record the memory contents before replacing the control unit, and input them in the new unit as necessary.
- Preset frequency
- Area for indicating station, selection of overlapped stations
- Program status
- Volume balance memory set values
- Equalizer memory set values
- Brightness of light when ON/OFF
- Dimming switching
- Display color switching
- Latest status (map screen/bird view, reduced scale, rotation angle of map screen, route guide ON/OFF, track ON/OFF, etc.)
- Current position
- Destination, passing point 1 - 5
- Registered places, their names, etc.
NOTE: Only removing the battery does not erase the memory.
- When replacing the AV and NAVI control unit, eject the map DVD-ROM before disconnecting the battery.
- The AV and NAVI control unit has the following information stored in its memory. Record the memory contents before replacing the control unit, and input them in the new unit as necessary.
- Preset frequency
- Area for indicating station, selection of overlapped stations
- Program status
- Volume balance memory set values
- Equalizer memory set values
- Brightness of light when ON/OFF
- Dimming switching
- Display color switching
- Latest status (map screen/bird view, reduced scale, rotation angle of map screen, route guide ON/OFF, track ON/OFF, etc.)
- Current position
- Destination, passing point 1 - 5
- Registered places, their names, etc.
NOTE: Only removing the battery does not erase the memory.
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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.