BRAKE PEDAL CHECK



caution
  • When the brake pedal assembly is checked, execute the special function (PHEV-ECU) "Item No. 2: Brake pedal stroke sensor learning reset" or disconnect the auxiliary battery terminals and then leave it disconnected for at least ten seconds. <PHEV>
  • Do not apply grease or lubricant to the switch and the switch installation section to avoid malfunction of the switch. In addition, do not use gloves which have grease on them.

BRAKE PEDAL HEIGHT CHECK


1.Turn up the floor carpet under the brake pedal.
2.Remove the stop lamp switch (Refer to ).

3.Use a needle or similar tool to measure the dimension A in the figure (distance from the dash panel pad surface to the dash panel).
4.Measure the dimension B in the figure (distance from the pedal pad surface to the dash panel pad surface).
5.Make sure that the total of the dimensions A and B measured in Steps 3 and 4 (brake pedal height) is within the standard value.
Standard value (A+B): 221.8 - 227.8 mm

6.When the brake pedal height is not within the standard value, inspect the brake pedal in the following procedure.
(1) Remove the brake pedal assembly (Refer to ).
(2) Check the removed brake pedal assembly for distortion, and replace it when deformed (Refer to ).
(3) Install the brake pedal assembly (Refer to ).
note When installing, compress the dash panel pad.
(4) Measure the brake pedal height again, and make sure that it is within the standard value (A+B).
When the measured value is not within the standard value, measure the dimension C in the figure (distance from the stud bolt end to the clevis hole centre), and make sure it is within the standard value (C).
Standard value (C): 75.8 - 80.2 mm
(5) When the measured value is not within the standard value (C), replace the brake booster (Refer to <Except PHEV-LHD>, <Except PHEV-RHD>, <PHEV-LHD>, <PHEV-RHD>).

7.After checking the brake pedal height, install the stop lamp switch in the following procedure:
(1) Insert the stop lamp switch into the key hole on the plate.
(2) While holding the brake pedal upwards, push in the stop lamp switch to the stop position.
(3) Lock the stop lamp switch body by twisting it clockwise.
(4) Check that the clearance between the stop lamp switch and the pedal stopper is as shown in the figure.
(5)
caution Make sure that the stop lamp is not illuminated when the brake pedal is not depressed.
Connect the stop lamp switch connector.
8.Recover the floor carpet under the brake pedal.

BRAKE PEDAL FREE PLAY CHECK AND ADJUSTMENT



1.With the engine stopped, depress the brake pedal 2 or 3 times to relief the vacuum in the brake booster. Then, press the brake pedal with your finger and check if the pedal stroke until the pedal becomes heavy (play) is within the standard value.
Standard value (D): 3 - 8 mm
2.When the brake pedal free play is not within the standard value, check the brake pedal-to-clevis pin looseness, clevis pin-to-booster operating rod looseness, brake pedal height, and stop lamp switch position, and adjust or replace as necessary.

BRAKE PEDAL-TO-FLOOR PANEL CLEARANCE CHECK AND ADJUSTMENT


1.Turn up the floor carpet under the brake pedal.

2.Start the engine and depress the brake pedal with approximately 500 N, and measure clearance between the brake pedal and the floor panel.
Standard value (E): 65 mm or more
3.When the clearance is not within the standard value, check for the air in the brake line and thickness of the disc brake pad, and correct or replace as necessary.
4.Recover the floor carpet under the brake pedal.