OBD Guide
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P00EF

Intake Air Temperature Sensor 3 Circuit Low Bank 2

P00EF is an OBD-II diagnostic trouble code meaning: Intake Air Temperature Sensor 3 Circuit Low Bank 2. Common causes: broken signal wire or ground wire of iat sensor 3 bank 2, oxidation or disconnection of the sensor connector. Estimated repair cost: $11–56.

Severity
✅ Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$11–56 (est.)

Symptoms

  • Check Engine light on dashboard
  • Minor change in the composition of the air-fuel mixture
  • Possible increased fuel consumption on a cold engine
  • The scanner shows an unrealistic intake air temperature (extremely low or error)
  • The ECU uses a reserve air temperature value

Causes

  • Broken signal wire or ground wire of IAT sensor 3 bank 2
  • Oxidation or disconnection of the sensor connector
  • IAT sensor failure (internal thermistor open)
  • Moisture getting into the sensor connector
  • Damage to the harness wiring in the intake tract

How to Fix

  1. Read codes and view real-time data on intake air temperature
  2. Find the location of IAT sensor 3 bank 2 using the electrical diagram of a specific engine
  3. Inspect the sensor connector and wiring for damage or oxidation.
  4. Measure the resistance of the sensor (at 20°C usually 2–3 kOhm) and compare with the norm
  5. Measure the reference voltage at the sensor connector (standard 5V) with the ignition on
  6. If the sensor is faulty or broken, replace the IAT sensor or restore the wiring

Related codes

P00EDP00EEP00F0P0113P0097

Error P00EF by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P00EF code mean?

P00EF is an OBD-II diagnostic trouble code that indicates: Intake Air Temperature Sensor 3 Circuit Low Bank 2

What causes a P00EF error code?

The most common causes of P00EF include: Broken signal wire or ground wire of IAT sensor 3 bank 2; Oxidation or disconnection of the sensor connector; IAT sensor failure (internal thermistor open); Moisture getting into the sensor connector.

How do I fix a P00EF diagnostic trouble code?

To fix P00EF: Read codes and view real-time data on intake air temperature. Find the location of IAT sensor 3 bank 2 using the electrical diagram of a specific engine. Inspect the sensor connector and wiring for damage or oxidation.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P00EF?

Yes, but get it checked soon

How much does it cost to fix P00EF?

The estimated repair cost for P00EF is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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