B159F No response from the XM tuner
What does B159F mean on a Toyota?
B159F. No response from the XM tuner. The navigation receiver loses AVC-LAN communication with the stereo component tuner. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.
Common causes of B159F
- Open or short in the AVC-LAN circuit
- Loose or corroded XM tuner connector
- Damaged AVC-LAN harness
- Failed XM tuner assembly
- Failed navigation receiver assembly
How to fix B159F
- Confirm the code and check satellite radio operation
- Inspect and reseat the XM tuner connectors
- Test the AVC-LAN circuit for opens and shorts
- Check the tuner power and ground
- Replace the failed part only after tests fail