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 unitSliding switch
Description
Sliding switch is equipped to the power seat switch LH on the seat frame. The
operation signal is input to the driver seat control unit when the sliding
switch is operated.
Component Function Check
1. CHECK FUNCTION
Select "SLIDE SW-FR", "SLIDE SW-RR" in "DATA MONITOR" mode wi ...
AV branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the AV control unit for
damage, bend and loose connection (unit
side and connector side).
2.CHECK HARNESS FOR OPEN CIRC ...
Combination meter
Reference Value
VALUES ON THE DIAGNOSIS TOOL
NOTE:
* The monitor will indicate "OFF" even though the brake warning
lamp is on if either of the following conditions exist:
The parking brake is engaged
The brake fluid level is low
TERMINAL LAYOUT
PHYSICAL VALUES
Fail Safe
...