Diagnosis Procedure
1.CHECK CONNECTOR
2.CHECK HARNESS FOR OPEN CIRCUIT

3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the AV control unit. Refer to the following.
M&A branch line circuit
HVAC branch line circuitWiring diagram
AIR CONDITIONER CONTROL
Wiring Diagram - With Monochrome Display
...
Opening windows
The Intelligent Key allows you to simultaneously
open windows equipped with automatic operation.
To open the windows, press and hold
the button on the Intelligent
Key for
longer than 3 seconds.
The door windows will lower while holding down
the button on the Intelligent Key.
NOTE: ...
Programming trouble-diagnosis
If the HomeLink does not quickly learn the
hand-held transmitter information:
replace the hand-held transmitter batteries
with new batteries.
position the hand-held transmitter with its
battery area facing away from the
HomeLink surface.
press and hold both the HomeLink and
hand-hel ...