Other information:
Inspection
1.
Turn ignition switch OFF.
2.
Remove the air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
3.
Disconnect the solenoid valve connector (A).
...
If your trailer is equipped with a braking system, make sure it conforms to your
country’s regulations and that it is properly installed and operating correctly.
If your trailer weight exceeds the maximum allowed weight without trailer brakes,
then the trailer will also require its own brakes as ...