Description
U1300 is indicated when a communication signal malfunction occurs. U1300 is indicated along with DTCs that identify components connected to the AV control unit through communication lines. Determine the possible malfunction cause from the table below.
SELF-DIAGNOSIS RESULTS DISPLAY ITEM

U1255 satellite radio tuner
U1310 AV control unitRear door speaker
Removal and Installation
REMOVAL
Remove the rear door finisher. Refer to INT-21, "Removal and
Installation".
Remove the rear door speaker screws (A).
Disconnect the harness connector (B) from the rear door speaker
(1) and remove.
INSTALLATION
Installation is in the reverse orde ...
Center speaker
Removal and Installation
REMOVAL
Remove the center speaker grille, using a suitable tool.
Remove the center speaker screws (A).
Pull out the center speaker (1), disconnect the harness connector
from the center speaker and remove.
INSTALLATION
Installation is in the reverse order ...
BCM (body control module)
Reference Value
NOTE: The Signal Tech II Tool (J-50190) can
be used to perform the following functions. Refer to the Signal Tech II User
Guide for additional information.
Activate and display TPMS transmitter IDs
Display tire pressure reported by the TPMS transmitter
Read TPMS DTCs
Re ...