OBD Guide
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P2233

O2 Sensor Signal Circuit Shorted to Heater Circuit Bank 1 Sensor 3

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–56 (est.)

Symptoms

  • Increased fuel consumption
  • Unstable engine operation
  • Check Engine light comes on
  • Reduced engine power
  • Increased level of harmful emissions

Causes

  • Damaged O2 sensor wiring
  • Oxygen sensor malfunction
  • Short circuit in the heater circuit
  • Damage to the sensor connector
  • ECU problems (rare)

How to Fix

  1. Check the integrity of the O2 sensor wiring
  2. Check sensor heater resistance
  3. Inspect the sensor connector for damage
  4. Replace the oxygen sensor if necessary
  5. Check sensor parameters using an OBD-II scanner

Related codes

P2231P2232P2234

Error P2233 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye
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