How to reduce braking power & depress brake pedal fully

Hi , what is the solution i have the same issue and i need to solve it as soon as possible.

That makes no sence if your brakes are spongey check the pads for ware disks for ware check brake fluid level faulty servo unit check hoses to engine as brakes work of compression of engine vacumes ect

Hi, there are two brake switches on this system, one is for a Brake Light circuit while the other powers up the Cruise Control and Brake Transmission Shift Interlock Solenoid. This switch is a normally closed switch that opens when the pedal is depressed. Power from this switch is feed to the PCM which then powers up the Cruise Control Servo. The contacts of this brake switch can make poor contact which reduces the current flow to the Cruise Control Servo. To test for this problem, find the brake switch with the Gray wire and Brown wire. Back probe and jumper the Gray wire to the Brown wire. Test drive the vehicle. If the cruise control now works, replace the Cruise/Shift/Interlock Brake Switch. The brake switch is located behind the brake pedal.

Hi!!
Check the Brake Pedal Position Switch on top of the brake pedal, the Lt Green w/Red stripe wire should always have 12v+, when brake pedal is depressed the Lt Green wire should have 12v+ also, if no power on Lt. Green w/Red wire, check fuse # 2 20A, if no power on Lt. Green wire when pedal depressed, REPLACE Switch, If there is power on both wires when pedal is depressed, check IVD STOP LAMP RELAY on the Aux. Relay Box 1 located at the Left Front of the Engine Compartment.
Good Luck!! A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa.

The flasher does not stop the brake lights from working. Check # 18 fuse in fusebox under lower left side of dash. if it's ok, the brake light switch, on the brake pedal arm is next. light green wire with red stripe is hot if fuse 18 is ok. Depress brake pedal, light green with no stripe should have power. if not, replace brake light switch. If light green wire has power with pedal depressed, combination switch under the steering is next. Remove the cover from around the combo switch {under the steering wheel}. depress brake pedal, light green wire should have power. If it does, pedal still depressed, orange with light blue wire & wire with light green & orange should have power. Those 2 wires are brake & rear turn signal wires. { The turn signal switch should be in the middle, not right position or left. while checking for power in the last 2 wires. Good Luck drvolt.

It should be bolted on. Depending on the model, things might look different, but a socket wrench set should be all that is required.
Maybe a pry bar.

Power Boosters Virtually all modern vehicles use a vacuum assisted power brake system to multiply the braking force and reduce pedal effort. Since vacuum is always available when the engine is operating, the system is simple and efficient. A vacuum diaphragm is located on the front of the master cylinder and assists the driver in applying the brakes, reducing both the effort and travel he must put into moving the brake pedal.
The vacuum diaphragm housing is normally connected to the intake manifold by a vacuum hose. A check valve is placed at the point where the hose enters the diaphragm housing, so that during periods of low manifold vacuum brakes assist will not be lost.
Depressing the brake pedal closes off the vacuum source and allows atmospheric pressure to enter on one side of the diaphragm. This causes the master cylinder pistons to move and apply the brakes. When the brake pedal is released, vacuum is applied to both sides of the diaphragm and springs return the diaphragm and master cylinder pistons to the released position.
If the vacuum supply fails, the brake pedal rod will contact the end of the master cylinder actuator rod and the system will apply the brakes without any power assistance. The driver will notice that much higher pedal effort is needed to stop the car and that the pedal feels harder than usual.

Most likely the brake light switch located down on the brake pedal lever has either malfunctioned, or is out of adjustment, and when the brake pedal is in the "up" position the brake light switch should be fully depressed, and if it is not then dis-connect the wiring connector to the brake light switch and then turn the brake light switch in until it just fully depresses the brake light switch, and then tighten the locking nut(s) and reconnect the wire connector to the brake light switch, and then test to see that the brake lights are working properly.

If the brake light switch seems to be adjusted properly, then dis-connect the wiring connector to the brake light switch, and if the brake lights go out then replace the brake light switch and adjust it as described above.

check under dash for a leaky vaccum switch. if booster was faulty brake pedal would be very hard to depress.

check under dash for leaking vaccum switch. usually manufacturers use vac switches to release the e-brake automatically when applying the brake.

The initial push on the brake pedal doesn't provide full stopping power, it just depresses enough to assure you that, yes, you have hit the brake pedal, but now you have to hit it harder. Pressing down through this hesitation allows the brakes to catch fully.