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 InspectionAbbreviations
ABS
Antilock Brake System
ABDC
After Bottom Dead Center
ACC
Accessories
ALC
Auto Level Control
ALR
Automatic Locking Retractor
AT
Automa ...
Laser Sensor (Front)
The Smart City Brake Support (SCBS) laser sensor is installed at the top of
the windshield
near the rearview mirror.
Always keep the surface of the windshield around the laser sensor clean to
assure proper
operation of the Smart City Brake Support (SCBS) system.
WARNING
As ther ...
No.1 Car Navigation System Does Not Start Operation [Car Navigation System]
1
Even if the NAVI mode is selected, the car-navigation system screen does
not display.
Possible DTC
—
POSSIBLE CAUSE
NAVI button malfunction
Power supply fuse (+B, ACC) burnt out
...