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 unitPower supply and ground circuit
BCM
BCM : Diagnosis Procedure
Regarding Wiring Diagram information, refer to BCS-67, "Wiring Diagram".
1. CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuses or fusible link are blown.
Is the fuse or fusible link blown?
2. CHECK POWER SUPPLY CIRCUIT
Turn ignition switch OFF.
...
Precautions on booster seats
WARNING
If a booster seat and seat belt are not used
properly, the risk of a child being injured
or killed in a sudden stop or collision
greatly increases:
Make sure the shoulder portion of
the belt is away from the child's face
and neck and the lap portion of the
belt does not cross t ...
Door key cylinder switch
Description
The main power window and door lock/unlock switch detects condition of the
door key cylinder switch and
transmits to BCM as the LOCK or UNLOCK signal.
Component Function Check
1.CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
Check KEY CYL UN-SW, KEY CYL UN-SW in "DATA MONITOR" mode ...