Hyundai Venue (QX): Stop Lamp Switch / Repair procedures

Hyundai Venue (QX) (2020-2025) Service Manual / Brake System / Stop Lamp Switch / Repair procedures

Adjustment
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the lower crash pad.
(Refer to Body - "Crash Pad")
3.
Confirm the gap between stop lamp switch and bracket.
Stop lamp clearance (A) : 1.0 - 2.0 mm (0.04 - 0.08 in.)

Hyundai Venue. Repair procedures
4.
If the gap between stop lamp switch and bracket is not 1.0-2.0mm (0.04-0.08in), check the mounting clip and other part of around stop lamp.
5.
If there is normal, remove the stop lamp switch and then install again.
Inspection
1. Fuse Inspection
Mount the test fuse to the switch fuse and relay fuse part to confirm a normal joint fit.

Hyundai Venue. Repair procedures

Hyundai Venue. Repair procedures

2. GDS Data Analysis
1.
Analyze GDS data and confirm if there is anything wrong with the stop lamp switch.
(1)
Connect the GDS to the self-diagnosis connector.
(2)
Turn the spark switch on
(3)
Step on the brake pedal.
(4)
Inspect the "brake switch" category that displays the "sensor data" GDS.
Normal waveform : The pressure sensor signal value will change according to the brake ON/OFF switch.

Hyundai Venue. Repair procedures
3. 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]

Hyundai Venue. Repair procedures

[ABS / VDC Control Module]

Hyundai Venue. Repair procedures

4. Inspect The Stop Lamp Circuit
Connect probe to each terminal wire and confirm oscilloscope waveform.
[Stop Lamp Switch Input / Output]

Hyundai Venue. Repair procedures

[Oscilloscope Waveform Screen]

Hyundai Venue. Repair procedures

Removal
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")
3.
Disconnect the stop lamp switch connector (A).

Hyundai Venue. Repair procedures
4.
Pull the locking plate (A) as indicated by the arrow.

Hyundai Venue. Repair procedures
5.
Turn stop lamp switch 45° counterclockwise and remove it.

Hyundai Venue. Repair procedures
6.
Inspect a removed stop lamp switch along the below procedures.
(1)
Confirm a normal connection with terminal part
–
A confirmation can be made to see if the connector has been secured properly and if a connection mark is present.

Hyundai Venue. Repair procedures
(2)
Perform the inspection of parts resistance
Installation
1.
Fix the brake pedal arm and insert fully the stop lamp switch as hiding contact part.

Hyundai Venue. Repair procedures
2.
After inserting, turn the stop switch (A) 45° clockwise, and then assemble locking plate by pushing.

Hyundai Venue. Repair procedures
3.
Confirm the gap between stop lamp switch and bracket.
Stop lamp clearance (A) : 1.0 - 2.0 mm (0.04 - 0.08 in.)

Hyundai Venue. Repair procedures

Hyundai Venue. Repair procedures   
•
If the gap between stop lamp switch and bracket is not 1.0-2.0mm (0.04-0.08in), perform the above process again.
4.
Connect the stop lamp switch connector.

Hyundai Venue. Repair procedures
5.
Install the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")

    Components 1. Brake member assembly 2. Stop lamp switch 3. Brake pedal arm assembly 4. Brake pedal pad

    Troubleshooting 1. Part diagnosis Items Cause Symptom Switch fuse Faulty fuse connection, Damaged fuse – DTC Code : P0504 – Symptom : Shifting gear trouble, Starting failure, Cruise control function cancelation trouble, EPB function cancelation trouble, Stop lamp lighting trouble, ESP OFF light illuminated.

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