Infotainment System Communication Error
2003-2009 Toyota 4Runner 4.0L V6
Description
Communication loss between the infotainment head unit and other vehicle modules on the entertainment bus.
Symptoms
- Infotainment screen blank
- No audio output
- Navigation not working
- Vehicle settings inaccessible
- Backup camera not displaying
Common Causes
- Head unit internal failure
- CAN/MOST bus wiring issue
- Head unit software crash
- Power supply fault
- Connector corrosion
Diagnostic Steps
- Attempt system reboot (hold power button)
- Check head unit power and ground
- Scan for communication faults
- Inspect bus wiring
- Check for software updates
Repair Notes
Reboot head unit first. If persistent, check bus wiring or replace head unit.
Related Codes
Other Body Codes
- B0001Driver Frontal Stage 1 Deployment Control
- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0005Driver Knee Airbag Deployment Circuit
B0460 on Other Vehicles
Toyota 4Runner
2003-2009 4.7L V8
Toyota 4Runner
2010-2024 4.0L V6
Toyota 86
2017-2020 2.0L H4
Toyota Alphard
2023-2025 2.4L I4 Turbo T24A-FTS
Toyota Alphard
2023-2025 2.5L I4 Hybrid A25A-FXS
Toyota Altezza
1998-2005 2.0L I4 3S-GE BEAMS
Toyota Altezza
1998-2005 2.0L I6 1G-FE
Toyota Aqua
2011-2021 1.5L I4 Hybrid 1NZ-FXE
Common Questions
What does code B0460 mean on a 2003-2009 Toyota 4Runner?
B0460 stands for "Infotainment System Communication Error". Communication loss between the infotainment head unit and other vehicle modules on the entertainment bus.
What are the symptoms of B0460 on a Toyota 4Runner?
Common symptoms of B0460 include: Infotainment screen blank, No audio output, Navigation not working, Vehicle settings inaccessible, Backup camera not displaying.
What causes B0460 on a 2003-2009 Toyota 4Runner?
Common causes of B0460 include: Head unit internal failure, CAN/MOST bus wiring issue, Head unit software crash, Power supply fault, Connector corrosion.