OBD code information sheet
https://obdauto.ro/cod/P0504?lang=en
Brake Switch A/B Correlation
Available definitions for this code
Choose the correct manufacturer. The same code can have different meanings; a definition without an identified make does not confirm applicability to your vehicle.
General code
Supplemented diagnostic guidance
Editorial synthesis of general information from the sources below. Listed causes and components are possibilities to investigate; the code does not confirm a faulty part.
- AUTODOC — symptoms, possible causes, checks, components to inspect · Checked:
Save codes and associated data before clearing. Follow the manufacturer procedure for the exact engine and vehicle configuration.
The definition comes from a community catalogue; its translated title may need review. Supplemented sections have their sources listed above. The code alone does not establish the faulty part or severity.
Definition source · MIT licenseReport a problem
Technical explanation
Brake Switch A/B Correlation. The supplemented diagnostic sections include their sources. This is general guidance; verify applicability to the exact vehicle.
Symptoms
- Brake lamps off or continuously lit; cruise control unavailable.
Possible causes
- 01Faulty brake switch, incorrect adjustment or damaged wiring.
Diagnostic checks
- 01Check brake lamps, fuses, connectors and switch adjustment against service information.
Parts involved
- Investigate: brake switch, bulbs and wiring.
Repair cost calculator
Indicative Romanian repair budgets, depending on the diagnosed repair. Choose your vehicle and compare available scenarios.
Model, year and engine (optional)
Available ranges are not yet validated for each year and engine code. Confirm compatible parts and access requirements with the workshop.
Display prices
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Continue your research
Links to related systems, warning lights and vehicle examples.
Experiences with this code
User-reported cases published after moderation. Approval does not verify the diagnosis; the same code can have different causes.
No approved English experiences for this definition yet.
