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

Hyundai Genesis (DH) 2013-2016 Service Manual / Brake System / 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: General Safety Information and Caution

    Instructions When Handling Refrigerant 1. R-134a liquid refrigerant is highly volatile. A drop on the skin of your hand could result in localized frostbite. When handling the refrigerant, be sure to wear gloves. 2. It is standard practice to wear goggles or glasses to protect your eyes, and gloves to protect your hands.

    Hyundai Genesis (DH) 2013-2016 Service Manual: Heater & A/C Control Unit Repair procedures

    Self Diagnosis 1. Self-diagnosis process 2. How to read self-diagnostic code After the display panel blinks three times every 0.5 second, the corresponding fault code blinks on the setup temperature display panel every 0.5 second and will show two figures.

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