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 generation voltage variable control system operation
inspection
Diagnosis Procedure
CAUTION:
When performing this inspection, always use a charged battery that has completed
the battery inspection.
(When the charging rate of the battery is low, the response speed of the voltage
change will
become slow. This can cause an incorrect inspection.)
1.CHEC ...
System temporarily unavailable
Condition A
When the radar sensor picks up interference
from another radar source, making it impossible
to detect a vehicle ahead, the FEB system is
automatically turned off.
The FEB system warning light (orange) will illuminate.
Action to take
When the above conditions no longer exist, ...
Turn signal and hazard warning lamp system
Wiring Diagram
...