OBD Guide
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P041D

EGR Temperature Sensor B Circuit High

P041D is an OBD-II diagnostic trouble code meaning: EGR Temperature Sensor B Circuit High. Common causes: short circuit of the egr temperature sensor wire to power, sensor thermistor internal break. Estimated repair cost: $6–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$6–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Limiting or disabling the operation of the EGR system
  • Increased NOx emissions
  • Increased fuel consumption
  • Possible engine emergency mode with power limitation

Causes

  • Short circuit of the EGR temperature sensor wire to power
  • Sensor thermistor internal break
  • Damage to the sensor connector (corrosion, deformation of contacts)
  • Damage to wiring due to high temperatures
  • Faulty EGR cooler (system overheating)
  • ECU malfunction (rare)

How to Fix

  1. Connect a diagnostic scanner and read the codes and current sensor data
  2. Check the readings of the EGR temperature sensor B: do they correspond to the actual temperature?
  3. Disconnect the sensor connector and measure its resistance at room temperature
  4. Check wiring for short to power (12 V or 5 V)
  5. Inspect the connector and wiring harness in the heating zone
  6. Replace EGR temperature sensor B if the fault is confirmed
  7. Check the EGR cooler for cooling efficiency
  8. Reset codes and take a test drive

Related codes

P041AP041BP041CP041EP0400P0401P0404

Error P041D by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P041D code mean?

P041D is an OBD-II diagnostic trouble code that indicates: EGR Temperature Sensor B Circuit High

What causes a P041D error code?

The most common causes of P041D include: Short circuit of the EGR temperature sensor wire to power; Sensor thermistor internal break; Damage to the sensor connector (corrosion, deformation of contacts); Damage to wiring due to high temperatures.

How do I fix a P041D diagnostic trouble code?

To fix P041D: Connect a diagnostic scanner and read the codes and current sensor data. Check the readings of the EGR temperature sensor B: do they correspond to the actual temperature?. Disconnect the sensor connector and measure its resistance at room temperature. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P041D?

Do not drive — repair immediately

How much does it cost to fix P041D?

The estimated repair cost for P041D is $6–167. Actual cost depends on your vehicle, location, and labor rates.

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