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 InspectionCowl Upper Plate Installation [Panel Replacement]
Symbol Mark
Installation Procedure
1. When installing new parts, measure and adjust the body as necessary to conform
with standard dimensions.
2. Drill holes for the plug welding before installing the new parts.
3. After temporarily installing new parts, make sure the related parts fit p ...
Start Stop Unit Configuration (Using Read/Write Function)
NOTE:
When performing configuration, it is necessary to read the vehicle specification
information from the start stop unit before replacing it. Connect the M-MDS
to the vehicle and perform vehicle identification before removing the start
stop unit. The vehicle specification informa ...
Shift Solenoid No.4 [Fw6 A EL, Fw6 Ax EL]
Purpose/Function
Shift solenoid No.4 adjusts the hydraulic pressure in the high clutch circuit
and the low and reverse brake circuit based on the current demand from the TCM
according to the vehicle conditions.
Construction
Shift solenoid No.4 is installed to the solenoid c ...