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C0045
System
Chassis (ABS / Stability)
Benötigter Scanner
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Right Rear Wheel Speed Sensor Circuit Range/Performance

Understand C0045, common causes, and the right TOPDON scanner to diagnose it.

ABS module detected a fault in the right rear wheel speed sensor signal range. Speed sensors tell the ABS and stability control how fast each wheel is turning.

Häufige Symptome

  • ABS light on
  • Traction/stability control disabled
  • False activation of ABS
  • Speedometer erratic on some models

Typische Ursachen

  • Failed right rear wheel speed sensor
  • Damaged tone ring or exciter ring
  • Wiring in wheel well harness
  • Corrosion at sensor connector

Welchen Scanner brauchen Sie?

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

Nutzen Sie Live-Daten und Freeze Frame, bevor Sie Teile tauschen. ABS-, SRS- und U-Codes erfordern meist einen Vollsystem-Scanner.

Diagnose-Tipps

  • Freeze Frame erfassen, wenn der Code erstmals gesetzt wird
  • Code erst nach Behebung der Ursache löschen
  • Auf verwandte pending codes prüfen
  • Batteriespannung über 12,4 V prüfen, bevor Sie Sensoren verdächtigen

Empfohlene TOPDON Scanner

Häufig gestellte Fragen

What does C0045 mean?
C0045 indicates right rear wheel speed sensor circuit range/performance. ABS module detected a fault in the right rear wheel speed sensor signal range. Speed sensors tell the ABS and stability control how fast each wheel is turning.
Can I diagnose C0045 with a basic code reader?
C0045 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 C0045?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with C0045?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.