1. Disconnect the brake fluid level sensor connector from the master cylinder.
2. Inspect for continuity according to fluid level between the brake fluid level sensor terminals.

If not as indicated in the table, replace the reserve tank.

Brake Switch InspectionOperating Tips
Operate the climate control system with
the engine running.
To prevent the battery from being
discharged, do not leave the fan control
dial on for a long period of time with the
ignition switched ON when the engine is
not running.
Clear all obstructions such as leaves,
snow and ic ...
Operating the Driver's Power
Window
Normal opening/closing
To open the window to the desired
position, lightly hold down the switch.
To close the window to the desired
position, lightly pull up the switch.
Auto-opening/closing
To fully open the window automatically,
press the switch completely down, then
release. The win ...
Fuel Line Pressure Inspection [Skyactiv G 2.0]
WARNING:
Fuel line spills and leakage from the pressurized fuel system are dangerous.
Fuel can ignite and cause serious injury or death and damage. To prevent this,
complete the following inspection with the engine stopped.
Fuel is very flammable liquid. If fuel spills or leaks ...