P0504 KIA - Brake Switch 'A' / 'B' Correlation
P0504 KIA Possible Causes
- Faulty Brake Lamp Switch
- Blown Brake Lamp Bulb
- Blown Brake Lamp Fuse
- Brake Lamp Switch harness open or shorted
- Brake Lamp Switch circuit poor electrical connection
First diagnose P0504 KIA code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
P0504 KIA Tech Notes
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Cost of diagnosing the P0504 KIA code
Labor: 1.0The cost of diagnosing the P0504 KIA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
P0504 KIA Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0504 Kia DescriptionIn addition to turning on the stop lamp, the stop lamp switch signals are used for a variety of engine, transmission, and suspension functions as well as being an input for diagnostic checks. It is important that the switch operates properly, therefore this switch is designed with two complementary signal outputs: STP and ST1.
The Engine Control Module (ECM) analyzes these signal outputs to detect malfunctions in the stop lamp switch.
P0504 KIA More InformationNeed more information on how to fix the P0504 KIA code?
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