TucsonDataManu

.com

Hyundai Tucson: Brake Pedal

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Brake System / Braking System - operation and description / Brake Pedal

Components

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

Schematic Diagram

System circuit diagram

System circuit diagram

Terminal Function

Terminal Function

Adjustment

Adjustment

Turn ignition switch OFF and disconnect the negative (-) batteiy cable.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")
Confirm the gap between stop lamp switch and bracket.

Stop lamp clearance (A) : 1.0 - 2.0 mm (0.04 - 0.08 in.)

If the gap between stop lamp switch and bracket is not 1.0 - 2.0 mm (0.04 - 0.08 in), check the mounting clip and other part of around stop lamp.
If there is normal, remove the stop lamp switch and then install again.

Inspection

Fuse inspection

Mount the test fuse to the switch fuse and relay fuse part to confirm a normal joint fit.

Diagnostic tool Data Analysis

Analyze diagnostic tool data and confirm if there is anything wrong with the stop lamp switch.

(1) Connect the diagnostic tool to the self-diagnosis connector.

(2) Turn the spark switch on (3) Step on the brake pedal.

(4) Inspect the "brake switch" categoiy that displays the "sensor data" diagnostic tool.

Normal waveform : The pressure sensor signal value will change according to the brake ON/OFF switch.

Inspection of connector by each part

Check to see whether or not each connector has been damaged, or terminal surge, or incomplete connection has taken place

Engine room junction box

ABS/VDC control module

ABS/VDC control module

Inspect the stop lamp circuit

Connect probe to each terminal wire and confirm oscilloscope waveform.

Stop lamp switch input/output

Oscilloscope waveform screen

Oscilloscope waveform screen

Brake Pedal - Removal

Turn ignition switch OFF and disconnect the negative (-) batteiy cable. Remove the crash pad lower panel. (Refer to Body - "Crash Pad Lower Panel") Disconnect the stop lamp switch connector (A). Pull the locking plate (A)

Parking Brake System

Components Lever Type Parking brake pedal assembly Equalizer assembly Parking brake cable Pedal Type Parking brake pedal assembly Front parking brake cable Equalizer assembly Rear parking brake cable Removal Disconnec

Parking Brake Pedal Stroke

Adjustment WARNING After disassembling/assembling the caliper body or replacing the caliper, parking brake cable or brake disc, re-adjust the parking brake. To fit the cable, follow one of these procedures. Apply a parking brake fully

SEE MORE:

48V Battery System - Removal

Turn the ignition switch OFF and disconnect the battery (-) terminal. Remove the luggage board (A). Disconnect the BMS ECU extension wiring harness connector (A). Disconnect the inverter power cables (A). Tightening torque

TREAD Lamp

Tire Under Inflation / Leak Warning. Turn on condition When tire pressure is below allowed threshold When rapid leak is detected by the sensor. Indicates that tire needs to be re-inflated to placard pressure / repaired.