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 window serial link
POWER WINDOW MAIN SWITCH
POWER WINDOW MAIN SWITCH : Description
Main power window and door lock/unlock switch, power window and door
lock/unlock switch RH and BCM
communicate via the power window serial link.
The keyless power window down signal is transmitted from BCM to
main power ...
Bluetooth control unit
Reference Value
TERMINAL LAYOUT
PHYSICAL VALUES
...
Diagnosis and repair workflow
WorkFlow
DETAILED FLOW
1.OBTAIN INFORMATION ABOUT SYMPTOM
Interview the customer to obtain the malfunction information (conditions and
environment when the malfunction occurred) as much as possible when the
customer brings the vehicle in.
2.REPRODUCE THE MALFUNCTION INFORMATION
Check the ma ...