OBD Guide
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P06B8

Internal Control Module Non-Volatile Random Access Memory (NVRAM) Error

P06B8 is an OBD-II diagnostic trouble code meaning: Internal Control Module Non-Volatile Random Access Memory (NVRAM) Error. Common causes: failure of the nvram chip (eeprom/flash) in the ecu, memory damage due to a power surge or short circuit in the on-board network. Estimated repair cost: $33–667.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–667 (est.)

Symptoms

  • Check Engine Light Is On
  • The computer resets the adaptation parameters after turning off the ignition
  • Unstable engine operation (loss of mixture adaptation, idle speed)
  • Possible loss of immobilizer settings
  • Lots of random error codes

Causes

  • Failure of the NVRAM chip (EEPROM/Flash) in the ECU
  • Memory damage due to a power surge or short circuit in the on-board network
  • Exposure to moisture on the ECU board
  • Long service life and exceeding memory write cycle
  • Incorrect ECU flashing

How to Fix

  1. Read all error codes and evaluate their totality
  2. Check the voltage of the on-board network - exclude surges or unstable power supply to the ECU
  3. Try a full ECU memory reset (power off for 15+ minutes)
  4. Perform a backup reading of the ECU data and try to reflash it
  5. Send the ECU for diagnostics and memory repair to a specialized workshop
  6. If repair is impossible, replace the ECU with flashing and coding

Related codes

P0601P0602P0604P0606P0607

Error P06B8 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P06B8 code mean?

P06B8 is an OBD-II diagnostic trouble code that indicates: Internal Control Module Non-Volatile Random Access Memory (NVRAM) Error

What causes a P06B8 error code?

The most common causes of P06B8 include: Failure of the NVRAM chip (EEPROM/Flash) in the ECU; Memory damage due to a power surge or short circuit in the on-board network; Exposure to moisture on the ECU board; Long service life and exceeding memory write cycle.

How do I fix a P06B8 diagnostic trouble code?

To fix P06B8: Read all error codes and evaluate their totality. Check the voltage of the on-board network - exclude surges or unstable power supply to the ECU. Try a full ECU memory reset (power off for 15+ minutes). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P06B8?

Limited driving only, diagnose soon

How much does it cost to fix P06B8?

The estimated repair cost for P06B8 is $33–667. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat