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.
2012 Infiniti G25 BaseFACTORY OEM SERVICE PROCEDURE
Section 13 (Audio, Visual, Navigation System)
WARNING: This page is about a different car, the 2011 Nissan Leaf. However, it is still accessible from the selected car via links, so may be relevant.
- [Base Audio & Navigation]
- Precaution
- Precautions
- Notes
- Precaution for Technicians Using Medical Electric
- Precautions When Using Power Tools (Air Or Electric) And Hammers
- Precaution for Trouble Diagnosis
- Precaution for Harness Repair
- Precaution for Removing 12V Battery
- Cautions in Removing 12V Battery Terminal and AV Control Unit (Models with AV Control Unit)
- Precautions
- Preparation
- System Description
- Description
- Component Parts
- System
- Operation
- Handling Precaution
- Diagnosis System (Av Control Unit)
- Ecu Diagnosis Information
- Wiring Diagram
- Basic Inspection
- DTC/Circuit Diagnosis
- DTC Index
- DTC U1000: Can Comm Circuit
- DTC U1010: Control Unit (Can)
- DTC U121F: Av Control Unit
- DTC U1232: Steering Angle Sensor
- DTC U1244: GPS Antenna
- DTC U1258: Satellite Radio Antenna
- DTC U1263: USB
- DTC U1266: Av Control Unit
- DTC U1300: Av Comm Circuit
- DTC U1310: Av Control Unit
- Power Supply And Ground Circuit
- Microphone Signal Circuit
- Rear View Camera Image Signal Circuit
- Steering Switch Signal A Circuit
- Steering Switch Signal B Circuit
- Steering Switch Signal GND Circuit
- Symptom Diagnosis
- Removal And Installation
- Precaution
- [Telematics System]
- Precaution
- Precautions
- Notes
- Precaution for Technicians Using Medical Electric
- Precautions When Using Power Tools (Air Or Electric) And Hammers
- Precaution for Trouble Diagnosis
- Precaution for Harness Repair
- Precaution for Removing 12V Battery
- Cautions in Removing 12V Battery Terminal and AV Control Unit (Models with AV Control Unit)
- Precautions
- Preparation
- System Description
- Ecu Diagnosis Information
- Wiring Diagram
- Basic Inspection
- DTC/Circuit Diagnosis
- Symptom Diagnosis
- Removal And Installation
- Precaution
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.