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C0070
System
Chassis (ABS / Stability)
Benötigter Scanner
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Rear Wheel Speed Sensor Correlation

Understand C0070, common causes, and the right TOPDON scanner to diagnose it.

ABS module detected mismatched rear wheel speed readings — one rear sensor may read differently from the other.

Häufige Symptome

  • ABS light
  • Traction control activation on straight road
  • False stability intervention

Typische Ursachen

  • One rear sensor failing
  • Different tire sizes on rear axle
  • Tone ring damage one side
  • Rear bearing play

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 C0070 mean?
C0070 indicates rear wheel speed sensor correlation. ABS module detected mismatched rear wheel speed readings — one rear sensor may read differently from the other.
Can I diagnose C0070 with a basic code reader?
C0070 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 C0070?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with C0070?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.