What does the code P0504 mean?
Brake Switch A/B Correlation
Hear this out loudPauseThe P0504 code is defined as “Brake Switch A/B Correlation” and is a generic diagnostic trouble code (DTC) generated by the engine control module (ECM) of your car. P0504 indicates that the ECM has detected a malfunction in the brake light switch signal circuit (stop lamp or stop light switch circuit).
What is brake switch correlation?
Hear this out loudPauseError Code P0504 is defined as Brake Switch A/B Correlation Code. This means there’s a malfunction detected in the vehicle’s brake light switch. The brake light switch is connected to multiple circuits, which can result in dangerous situations. The brake switch itself is made up of two signal outputs.
Why does my car have a p0504 brake light code?
Your vehicle’s powertrain control module (PCM) has set this P0504 code in response to a recognized failure in the brake light circuit. The vehicle’s computer monitors all circuits for abnormalities such as lack of voltage or an out of range condition.
What does the DTC code p0504 mean?
Diagnostic Trouble Code (DTC): P0504 P0504 code definition. When a malfunction is detected in the brake light switch of a vehicle, the PCM (powertrain control module) records the P0504 code, and the Check Engine Light is illuminated. What the P0504 code means. If a failure occurs in the circuit for the brake light, a number of problems can occur.
Can a p0504 code cause a failed emissions test?
In addition to causing potentially dangerous situations on the road, a P0504 code can also result in a failed emissions test. Though the brake light switch does not have a direct effect on the vehicle’s emissions, it will illuminate the Check Engine Light, which will cause the vehicle to fail an OBD-II emissions test. Need help with a P0504 code?
How long does it take to diagnose a p0504 code?
Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. What does this mean? The cost to diagnose the P0504 code is 1.0 hour of labor.
What does the p0504 code on my brake light mean?
What the P0504 code means. If a failure occurs in the circuit for the brake light, a number of problems can occur. To keep you out of danger this code will be recorded, and the Check Engine Light will remain on until the cause of the problem is resolved and the code is cleared from the PCM.
In addition to causing potentially dangerous situations on the road, a P0504 code can also result in a failed emissions test. Though the brake light switch does not have a direct effect on the vehicle’s emissions, it will illuminate the Check Engine Light, which will cause the vehicle to fail an OBD-II emissions test. Need help with a P0504 code?
When does the Hyundai Sonata check engine light go off?
In most cases, your Hyundai Sonata light will go off after about 20-40 miles. If you drive over that amount and the light is still on, you will need to bring it in to Nalley Hyundai so the light and code can be double-checked and reset.
How to know if your PCM has stored a p0504 code?
The first indication that your PCM has stored a P0504 code will likely be an illuminated Check Engine Light. Aside from this, you may also notice other symptoms, including: Pressing the brake pedal doesn’t engage or disengage the vehicle’s cruise control system. One or both brake lights will not turn on when pressing the brake pedal.