OBD Guide
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P06AB

Control Module Internal Temperature Sensor B Circuit

P06AB is an OBD-II diagnostic trouble code meaning: Control Module Internal Temperature Sensor B Circuit. Common causes: internal fault of temperature sensor b in the ecu, failure of the internal temperature measurement circuit on the ecu board. Estimated repair cost: $56–667.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–667 (est.)

Symptoms

  • Check Engine Light Is On
  • The ECU has no information about its temperature
  • Possible random errors and ECU adaptation resets
  • Unstable engine operation
  • Possible emergency mode as a precautionary measure

Causes

  • Internal fault of temperature sensor B in the ECU
  • Failure of the internal temperature measurement circuit on the ECU board
  • Damage to the computer due to previous overheating
  • Exposure to moisture or corrosion on the ECU board
  • Factory defect or component wear

How to Fix

  1. Read error codes, pay attention to the presence of associated codes P06AA, P06AC–P06AE
  2. Check if the ECU has previously overheated (based on code history and operating conditions)
  3. Make sure there is no moisture or oxidation in the ECU connectors.
  4. Check all ECU operating parameters with an advanced scanner
  5. Send the ECU for specialized diagnostics and electronics repair
  6. If repair is impossible, replace the ECU with flashing

Related codes

P06AAP06ACP06ADP06AE

Error P06AB by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P06AB code mean?

P06AB is an OBD-II diagnostic trouble code that indicates: Control Module Internal Temperature Sensor B Circuit

What causes a P06AB error code?

The most common causes of P06AB include: Internal fault of temperature sensor B in the ECU; Failure of the internal temperature measurement circuit on the ECU board; Damage to the computer due to previous overheating; Exposure to moisture or corrosion on the ECU board.

How do I fix a P06AB diagnostic trouble code?

To fix P06AB: Read error codes, pay attention to the presence of associated codes P06AA, P06AC–P06AE. Check if the ECU has previously overheated (based on code history and operating conditions). Make sure there is no moisture or oxidation in the ECU connectors.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P06AB?

Limited driving only, diagnose soon

How much does it cost to fix P06AB?

The estimated repair cost for P06AB is $56–667. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat