IS 250C V6-2.5L (4GR-FSE) (2011)
If the result is not as specified, replace the speaker assembly.
Text in Illustration
(d) When there is a possibility that either the right or left speaker is malfunctioning, interchange the speakers and perform an inspection. If the
malfunction disappears after interchanging the speakers, replace the malfunctioning speaker.
HINT
Connect all connectors to the speakers when performing an inspection. If the result is not as specified, replace the speaker assembly.