OBD Guide
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C0236

Missing Rear Speed Sensor Signal

C0236 is an OBD-II diagnostic trouble code meaning: Missing Rear Speed Sensor Signal. Common causes: rear wheel speed sensor malfunction, broken or damaged sensor wiring. Estimated repair cost: $22–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–89 (est.)

Symptoms

  • ABS warning light is on
  • Anti-lock brake system does not work
  • ESP and traction control systems disabled
  • The speedometer may show incorrect data
  • Unstable vehicle behavior during emergency braking

Causes

  • Rear wheel speed sensor malfunction
  • Broken or damaged sensor wiring
  • Contamination or damage to the drive ring (impulse rotor)
  • Increased gap between sensor and drive ring
  • Oxidation of sensor connector contacts
  • ABS control unit malfunction

How to Fix

  1. Read error codes and determine which rear sensor is faulty
  2. Inspect the speed sensor and its connector for damage or dirt.
  3. Check the sensor resistance with a multimeter (typical value 800-1400 ohms)
  4. Inspect the drive ring on the hub - it should not be cracked, chipped or dirty
  5. Check the gap between the sensor and the drive ring
  6. Replace the speed sensor if necessary

Error C0236 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the C0236 code mean?

C0236 is an OBD-II diagnostic trouble code that indicates: Missing Rear Speed Sensor Signal

What causes a C0236 error code?

The most common causes of C0236 include: Rear wheel speed sensor malfunction; Broken or damaged sensor wiring; Contamination or damage to the drive ring (impulse rotor); Increased gap between sensor and drive ring.

How do I fix a C0236 diagnostic trouble code?

To fix C0236: Read error codes and determine which rear sensor is faulty. Inspect the speed sensor and its connector for damage or dirt.. Check the sensor resistance with a multimeter (typical value 800-1400 ohms). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C0236?

Limited driving only, diagnose soon

How much does it cost to fix C0236?

The estimated repair cost for C0236 is $22–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat