P0504 — Brake Switch 'A'/'B' Correlation

Powertrain (engine/transmission)

Brake Switch 'A'/'B' Correlation

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Can I drive with P0504?

Usually OK to keep driving, but book an inspection soon.

Frequently asked questions

What does fault code P0504 mean?

P0504 means Brake Switch 'A'/'B' Correlation.

Can I keep driving with P0504?

Usually OK to keep driving, but book an inspection soon.

Related fault codes

• P0500 — Vehicle Speed Sensor Malfunction
• P0501 — Vehicle Speed Sensor Range/Performance
• P0502 — Vehicle Speed Sensor 'A' Low Input
• P0503 — Vehicle Speed Sensor 'A' Intermittent/Erratic/High
• P0505 — Idle Control System Malfunction
• P0506 — Idle Control System RPM Lower Than Expected
• P0507 — Idle Control System RPM Higher Than Expected
• P0508 — Idle Air Control System Circuit Low
• P0509 — Idle Air Control System Circuit High

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