SYSTEM DIAGRAM
Display does not Dim when Light Control Switch is Turned ON
PROCEDURE
1.
CHECK IMAGE QUALITY SETTING
(a) Turn the light control switch to the tail or head position.
(b) Check that the daytime screen setting on the display adjustment screen is
set to on.
Result
...
Lost Communication with A/C ECU (U0164)
DESCRIPTION
DTC Code
DTC Detection Condition
Trouble Area
U0164
There is no communication from the air conditioning amplifier assembly.
Power source or inside air conditioning ...