Hyundai Genesis (DH): Brake System / Stop Lamp Switch Troubleshooting

Troubleshooting
1.
Part diagnosis
Items
Cause
Symptom
Remedy
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.
A waveform inspection is performed using an oscilloscope on each part during vehicle acceleration/braking. (Refer to stop lamp switch circuit inspection procedures)

Refer to the relevant repair procedures of the part when something abnormal is discovered in the waveform (Refer to the repair procedures of the relevant part and if necessary replace it)
Relay 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.
Stop lamp switch

    Schematic Diagram System Circuit Diagram Terminal function Description1IGN12Engine Control Module (ECM)3B+4Stop Lmap

    Adjustment 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the lower crash pad. (Refer to Body - "Crash Pad") 3.

    Other information:

    Hyundai Genesis (DH) 2013-2016 Service Manual: In-car Sensor Repair procedures

    I

    Hyundai Genesis (DH) 2013-2016 Service Manual: Blower Unit Components and Components Location

    Component Location Components 1. Seal2. Intake Duct Case3. Intake Door4. Intake Actuator5. Intake Duct Case (A)6. Climate Control Air Filter7. Climate Control Air Filter Cover8. Cluster Ionizer9. Blower Upper Case10. Blower Lower Case11. Power Mosfet12.

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