OBD Guide
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C052B

ABS Pump Motor Control Range/Performance

C052B is an OBD-II diagnostic trouble code meaning: ABS Pump Motor Control Range/Performance. Common causes: mechanical wear of the abs pump motor, brake fluid contamination, increased viscosity. Estimated repair cost: $56–556.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–556 (est.)

Symptoms

  • ABS and ESP warning lights are on
  • Increased response time of ABS when braking
  • Unusual noise from ABS hydraulic unit
  • Brake pedal vibration during ABS operation is weaker than usual
  • Complete disabling of ABS/ESP systems

Causes

  • Mechanical wear of the ABS pump motor
  • Brake fluid contamination, increased viscosity
  • Air in the ABS hydraulic system
  • Low supply voltage (weak battery)
  • Increased resistance in the pump power circuit
  • ABS control module malfunction

How to Fix

  1. Perform a complete diagnostic of the ABS/ESP system
  2. Check the level and condition of the brake fluid - replace if necessary
  3. Check battery voltage and pump power circuit
  4. Bleed the ABS hydraulic unit using a diagnostic scanner
  5. Check the current consumption of the electric motor during operation
  6. If the motor malfunctions, replace the ABS hydraulic unit

Related codes

C052AC052CC003A

Error C052B by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the C052B code mean?

C052B is an OBD-II diagnostic trouble code that indicates: ABS Pump Motor Control Range/Performance

What causes a C052B error code?

The most common causes of C052B include: Mechanical wear of the ABS pump motor; Brake fluid contamination, increased viscosity; Air in the ABS hydraulic system; Low supply voltage (weak battery).

How do I fix a C052B diagnostic trouble code?

To fix C052B: Perform a complete diagnostic of the ABS/ESP system. Check the level and condition of the brake fluid - replace if necessary. Check battery voltage and pump power circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C052B?

Do not drive — repair immediately

How much does it cost to fix C052B?

The estimated repair cost for C052B is $56–556. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat