OBD Guide
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C065A

Right Front Wheel Speed Sensor B Circuit Low

C065A is an OBD-II diagnostic trouble code meaning: Right Front Wheel Speed Sensor B Circuit Low. Common causes: right front wheel speed sensor dirty, increased gap between sensor and drive ring. Estimated repair cost: $22–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–111 (est.)

Symptoms

  • ABS warning light is on
  • ABS, ESP and traction control systems are disabled
  • Possible false alarms of ABS when braking
  • Unstable speed readings on the display
  • Incorrect operation of the odometer

Causes

  • Right front wheel speed sensor dirty
  • Increased gap between sensor and drive ring
  • Damage to the sensor wiring (chafing, wire breakage)
  • Malfunction of the sensor itself (internal defect of channel B)
  • Worn or damaged drive ring on the hub
  • Wheel bearing play of the right front wheel

How to Fix

  1. Read error codes and check the data of all speed sensors with a scanner
  2. Inspect the right front wheel speed sensor - clean from dirt and metal shavings
  3. Check the gap between the sensor and the drive ring
  4. Measure the resistance and voltage of the sensor signal (both channels)
  5. Inspect the wiring from the sensor to the ABS unit for damage.
  6. Check the drive ring and wheel bearing for play
  7. Replace the sensor if it is confirmed to be faulty

Related codes

C065BC0650C0655

Error C065A by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the C065A code mean?

C065A is an OBD-II diagnostic trouble code that indicates: Right Front Wheel Speed Sensor B Circuit Low

What causes a C065A error code?

The most common causes of C065A include: Right front wheel speed sensor dirty; Increased gap between sensor and drive ring; Damage to the sensor wiring (chafing, wire breakage); Malfunction of the sensor itself (internal defect of channel B).

How do I fix a C065A diagnostic trouble code?

To fix C065A: Read error codes and check the data of all speed sensors with a scanner. Inspect the right front wheel speed sensor - clean from dirt and metal shavings. Check the gap between the sensor and the drive ring. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C065A?

Limited driving only, diagnose soon

How much does it cost to fix C065A?

The estimated repair cost for C065A is $22–111. Actual cost depends on your vehicle, location, and labor rates.

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