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P0724
System
Powertrain (Transmission)
Scanner som krävs
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Brake Switch B Circuit High

Understand P0724, common causes, and the right TOPDON scanner to diagnose it.

Brake switch B circuit open or high voltage.

Vanliga symptom

  • Cruise/trans shift issues
  • Check engine light

Typiska orsaker

  • Open brake switch circuit
  • Failed switch
  • Blown fuse on brake switch feed

Vilken scanner behöver du?

Full-system scanner (engine, ABS, SRS, transmission, service resets)

Använd live-data och freeze frame innan du byter delar. ABS-, SRS- och U-koder kräver oftast en fullsystems-scanner.

Diagnostiktips

  • Spara freeze frame när koden först sätts
  • Rensa koden först efter att orsaken är åtgärdad
  • Kontrollera relaterade väntande koder
  • Verifiera batterispänning över 12,4 V innan du misstänker sensorer

Rekommenderade TOPDON-scannrar

Vanliga frågor

What does P0724 mean?
P0724 indicates brake switch b circuit high. Brake switch B circuit open or high voltage.
Can I diagnose P0724 with a basic code reader?
P0724 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Which TOPDON scanner do I need for P0724?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with P0724?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.