KIA Niro: Brake Pedal

Kia Niro - First generation - (DE) (2017-2022) - Service and Repair Manual / Brake System / AHB(Active Hydraulic Boost) System / Brake Pedal

Brake pedal member assembly
Stop lamp switch
Brake pedal arm
Brake pedal pad
Brake pedal stroke sensor

Removal

Turn ignition switch OFF and disconnect the negative (-) battery terminal.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad")
Remove the knee air bag.
(Refer to Restraint - "Knee Airbag(KAB) Module")
Remove the Steering column and shaft.
(Refer to the Steering System - "Steering Columm and Shaft")
Disconnect the stop lamp switch (A) and brake pedal stroke sensor connector (B).

Loosen the nut (A) and then remove the bracket.

Tightening torque : 16.6 - 25.4 N*m (1.7 - 2.6 kgf*m, 12.2 - 18.8 lb*ft)

Remove the snap pin (A) and clebis pin (B).

Loosen the brake pedal nuts and then remove the brake pedal.

Tightening torque : 16.6 - 25.4 N*m (1.7 - 2.6 kgf*m, 12.2 - 18.8 lb*ft)

Installation

Installation

Installation is the reverse of removal.
Check the brake pedal operation.
Conduct the pedal traval sensor (PTS) calibration.

Diagnostic Procedure Using a Diagnostic Instrument

Brake Pedal Sensor Calibration

The brake pedal sensor calculates the pedal full stroke according to the preset zero. Therefore, zeroing adjustment is necessary when first installed.Calibration must be performed as following cases.

After changing the brake pedal assembly (you cannot change only the sensor).
After changing the IEB (Integrated lectronic Booster).
When error codes C1380 (calibration) or C1379 (signal error) are detected.
After bleeding IEB line.

Brake Pedal Travel Sensor (PTS) Calibration Procedure

The calibration must be done while the vehicle is parked without stepping on the brake pedal and while there is no vibration on the vehicle.

Connect self-diagnosis connector (16pins) located under the driver side crash pad to self-diagnosis device, and then turn the selfdiagnosis device after key is ON.
Select the "vehicle model" and "ESC/AHB" on KDS vehicle selection screen.
Proceed with the test according to the screen instructions.

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Stop Lamp Switch

Stop Lamp Switch Components and components location Brake pedal member assembly Stop lamp switch Brake pedal arm Brake pedal pad Brake pedal stroke sensor Operation Operation principle of inductive non-contact switch Use the

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