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 window defogger power supply and ground circuit
Description
Heats the heating wire with the power supply from the rear window defogger
relay to prevent the rear window
from fogging up.
Component Function Check
1. CHECK REAR WINDOW DEFOGGER
Check that the heating wire of rear window defogger is heated when turning
the rear window defogge ...
Preparation
PREPARATION
Special Service Tool
The actual shape of the tools may differ from those illustrated here.
Commercial Service Tools
...
Condenser
Removal and Installation
REMOVAL
Remove the rear pillar finisher LH. Refer to INT-24, "Removal and
Installation".
Disconnect the harness connector, remove bolt (A), and then
remove condenser (1) from the vehicle body.
INSTALLATION
Installation is in the reverse order of ...