Zoeken
C0038
Systeem
Chassis (ABS / Stability)
Scanner vereist
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Right Rear Wheel Speed Sensor Circuit Low Input

Understand C0038, common causes, and the right TOPDON scanner to diagnose it.

RR wheel speed sensor circuit low voltage.

Veelvoorkomende symptomen

  • ABS inop
  • Check engine light on some AWD models

Typische oorzaken

  • Failed RR sensor
  • Open or short in circuit
  • Rear bearing affecting gap

Welke scanner heb je nodig?

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

Gebruik live data en freeze frame voordat je onderdelen vervangt. ABS-, SRS- en U-codes vereisen meestal een full-system scanner.

Diagnosetips

  • Leg freeze frame vast wanneer de code voor het eerst verschijnt
  • Wis de code pas na het oplossen van de oorzaak
  • Controleer op gerelateerde pending codes
  • Controleer of accuspanning boven 12,4 V is voordat je sensoren suspecteert

Aanbevolen TOPDON scanners

Veelgestelde vragen

What does C0038 mean?
C0038 indicates right rear wheel speed sensor circuit low input. RR wheel speed sensor circuit low voltage.
Can I diagnose C0038 with a basic code reader?
C0038 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 C0038?
Full-system scanner (engine, ABS, SRS, transmission, service resets) See recommended tools on this page.
Is it safe to drive with C0038?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.