OBD Guide
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P0057

HO2S Heater Control Circuit Low Bank 2 Sensor 2

P0057 is an OBD-II diagnostic trouble code meaning: HO2S Heater Control Circuit Low Bank 2 Sensor 2. Common causes: faulty oxygen sensor heater, open or short circuit in heater circuit wiring. Estimated repair cost: $22–89.

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

Symptoms

  • Check Engine Light Illuminates
  • Increased fuel consumption
  • Unstable engine operation at idle
  • Reduced engine power
  • Increased emissions of harmful substances
  • Difficulty starting on a cold engine

Causes

  • Faulty oxygen sensor heater
  • Open or short circuit in heater circuit wiring
  • Corrosion or oxidation of sensor connector contacts
  • Heater Circuit Fuse Malfunction
  • Heater control relay problems
  • Engine ECU malfunction
  • Damage to wiring harness due to high temperature

How to Fix

  1. Connect a diagnostic scanner and read all error codes
  2. Check the condition of the engine control system fuses
  3. Visually inspect the wiring to the oxygen sensor for damage.
  4. Measure the resistance of the oxygen sensor heater (usually 2-14 ohms)
  5. Check the supply voltage at the sensor connector with the engine running
  6. Check the integrity of the sensor ground wire
  7. If necessary, replace the faulty oxygen sensor
  8. Repair damaged wiring or connectors
  9. Clear error codes and test drive
  10. Recheck the system with a diagnostic scanner

Related codes

P0053P0054P0055P0056P0058P0059P0135P0141

Error P0057 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0057 code mean?

P0057 is an OBD-II diagnostic trouble code that indicates: HO2S Heater Control Circuit Low Bank 2 Sensor 2

What causes a P0057 error code?

The most common causes of P0057 include: Faulty oxygen sensor heater; Open or short circuit in heater circuit wiring; Corrosion or oxidation of sensor connector contacts; Heater Circuit Fuse Malfunction.

How do I fix a P0057 diagnostic trouble code?

To fix P0057: Connect a diagnostic scanner and read all error codes. Check the condition of the engine control system fuses. Visually inspect the wiring to the oxygen sensor for damage.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0057?

Limited driving only, diagnose soon

How much does it cost to fix P0057?

The estimated repair cost for P0057 is $22–89. Actual cost depends on your vehicle, location, and labor rates.

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