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 unitHomelink universal transceiver
Description
Homelink universal transceiver can store and transmit a maximum of 3 radio
signals.
Allows operation of garage doors, gates, home and office lighting, entry door
locks and security system, etc.
Homelink universal transceiver power supply uses vehicle battery, which enables
...
Preparation
Special Service Tool
The actual shapes of the tools may differ from those illustrated her
Commercial Service Tool
...
U1227 AV control unit
DTC Logic
Diagnosis Procedure
1.CHECK PLAYBACK OF A DISK (DVD)
U1228 AV CONTROL UNIT
DTC Logic
DTC DETECTION LOGIC
U1229 AV CONTROL UNIT
DTC Logic
DTC DETECTION LOGIC
...