OBD Guide
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P064D

Internal Control Module O2 Sensor Processor Performance Bank 1

P064D is an OBD-II diagnostic trouble code meaning: Internal Control Module O2 Sensor Processor Performance Bank 1. Common causes: internal fault in the ecu processor circuit (o2 signal processing), overheating or humidity that damaged the internal circuits of the ecu. Estimated repair cost: $33–889.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–889 (est.)

Symptoms

  • Check Engine light comes on
  • Increased fuel consumption
  • Unstable exhaust gas composition (rich or lean mixture)
  • Other Bank 1 O2 Sensor Codes
  • Deterioration of the catalytic converter

Causes

  • Internal fault in the ECU processor circuit (O2 signal processing)
  • Overheating or humidity that damaged the internal circuits of the ECU
  • Voltage surge that damaged the ECU electronics
  • ECU manufacturing defect
  • Mechanical damage to the ECU

How to Fix

  1. Check the correct operation of bank 1 oxygen sensors (rule out external faults)
  2. Check power, ground, and signal circuits of bank 1 O2 sensors
  3. Make sure that the ECU is installed correctly and that there is no physical damage.
  4. Check the ECU supply voltage and the quality of the mass connections
  5. ECU diagnostics on a specialized stand
  6. If an internal malfunction is confirmed, repair or replace the ECU

Related codes

P064EP0130P0131P0132P0133P0135

Error P064D by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P064D code mean?

P064D is an OBD-II diagnostic trouble code that indicates: Internal Control Module O2 Sensor Processor Performance Bank 1

What causes a P064D error code?

The most common causes of P064D include: Internal fault in the ECU processor circuit (O2 signal processing); Overheating or humidity that damaged the internal circuits of the ECU; Voltage surge that damaged the ECU electronics; ECU manufacturing defect.

How do I fix a P064D diagnostic trouble code?

To fix P064D: Check the correct operation of bank 1 oxygen sensors (rule out external faults). Check power, ground, and signal circuits of bank 1 O2 sensors. Make sure that the ECU is installed correctly and that there is no physical damage.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P064D?

Limited driving only, diagnose soon

How much does it cost to fix P064D?

The estimated repair cost for P064D is $33–889. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat