B15C3 Speaker output circuit reads a short
What does B15C3 mean on a Toyota?
B15C3. Speaker output circuit reads a short. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.
Common causes of B15C3
- Failed speaker
- Short in the speaker output circuit
- Damaged speaker harness
- Failed navigation receiver assembly
- Failed stereo component amplifier assembly
How to fix B15C3
- Confirm the code and check each speaker
- Inspect the speaker wiring for shorts
- Test speaker resistance and output
- Reseat the amplifier and receiver connectors
- Replace the failed part only after tests fail