What causes B15F9 on a Toyota?

Failed multi-media module receiver assembly UART communication line open Poor electrical connection Damaged communication harness Failed radio receiver assembly

How do I fix B15F9 on a Toyota?

Confirm the code and check audio operation Inspect and reseat the module connectors Test the UART line for an open Check power and ground at the module Replace the module only after tests fail

B15F9 UART line to the multi-media module reads open

Q: What does B15F9 mean on a Toyota?

B15F9. UART line to the multi-media module reads open. Applies to Toyota, Lexus and Scion models that use this code.

Category: Body
Severity: Body Warning Light
Applies to: Toyota, Lexus and Scion models that use this code

What does B15F9 mean on a Toyota?

B15F9. UART line to the multi-media module reads open. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.

Common causes of B15F9

Failed multi-media module receiver assembly
UART communication line open
Poor electrical connection
Damaged communication harness
Failed radio receiver assembly

How to fix B15F9

Confirm the code and check audio operation
Inspect and reseat the module connectors
Test the UART line for an open
Check power and ground at the module
Replace the module only after tests fail