CAUTION / NOTICE / HINT HINT:
PROCEDURE
(a) Check that the same problem does not occur in the sound heard from the speakers of another "Bluetooth" audio compatible vehicle of the same model. OK: The same problem does not occur in the sound heard from the speakers.
(a) Remove additional devices which use radio waves. (b) Play the portable player and check that the same problem does not occur in the sound heard from the speakers. OK: The same problem does not occur in the sound heard from the speakers.
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Toyota Tundra Service Manual > Can Communication System: Lost Communication with Gateway Module (U1002)
DESCRIPTION The main body ECU (multiplex network body ECU) stores this DTC when no signals can be received from the ECUs that have been memorized as those connected to the sub bus 1. When the main body ECU (multiplex network body ECU) receives a response signal from the ECUs connected to the sub bus ...