Examination
Raise the front of the car, put it on supports, remove the wheel.
Disconnect the wires from the front brake circuit brake light switch, turn on the ignition and depress the brake pedal: the brake lights should come on.
Connect the wires to the front brake circuit brake light switch, disconnect the wires from the rear brake circuit switch, depress the brake pedal: the brake lights should come on again.
If in one of the two checks the lights do not light up, the corresponding switch must be replaced.
Replacement
Disconnect wire "masses" from the battery, remove the left wheel.
Mark the wires, disconnect them and unscrew the switch, while removing the leaking brake fluid with a rag.
Screw in new switch (tightening torque 20-25 Nm) and connect the wires to it in accordance with the marks made.
Attention! After installing the switch, bleed the corresponding brake circuit.
Connect wire "masses" to the battery.
Check the operation of the brake lights.
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