OBD Guide
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P0064

HO2S Heater Control Circuit High Bank 2 Sensor 3

P0064 is an OBD-II diagnostic trouble code meaning: HO2S Heater Control Circuit High Bank 2 Sensor 3. Common causes: faulty oxygen sensor (bank 2, sensor 3), broken or damaged sensor heater wiring. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Check Engine Light Illuminated
  • Increased fuel consumption
  • Unstable engine operation at idle
  • Reduced engine power
  • Deterioration in acceleration dynamics
  • Possible increase in exhaust toxicity

Causes

  • Faulty oxygen sensor (bank 2, sensor 3)
  • Broken or damaged sensor heater wiring
  • Short circuit in the heater circuit to power
  • Corrosion or oxidation of sensor connector contacts
  • Engine ECU malfunction
  • Poor fuel quality leading to contamination of the sensor
  • Sensor heater circuit fuse is damaged

How to Fix

  1. Read error codes with scanner and record freeze frame data
  2. Visually inspect the oxygen sensor and its wiring for damage.
  3. Check the condition of the sensor connector, clean from corrosion if necessary
  4. Measure the resistance of the sensor heating element (usually 2-14 Ohms)
  5. Check the supply voltage at the sensor connector with the engine running
  6. Test the integrity of the wiring from the sensor to the ECU
  7. If necessary, replace the faulty oxygen sensor
  8. Clear error codes and test drive to verify troubleshooting

Related codes

P0054P0055P0059P0060P0063P0065P0135P0141

Error P0064 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0064 code mean?

P0064 is an OBD-II diagnostic trouble code that indicates: HO2S Heater Control Circuit High Bank 2 Sensor 3

What causes a P0064 error code?

The most common causes of P0064 include: Faulty oxygen sensor (bank 2, sensor 3); Broken or damaged sensor heater wiring; Short circuit in the heater circuit to power; Corrosion or oxidation of sensor connector contacts.

How do I fix a P0064 diagnostic trouble code?

To fix P0064: Read error codes with scanner and record freeze frame data. Visually inspect the oxygen sensor and its wiring for damage.. Check the condition of the sensor connector, clean from corrosion if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0064?

Limited driving only, diagnose soon

How much does it cost to fix P0064?

The estimated repair cost for P0064 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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