OBD Guide
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U010B

Lost Communication With Exhaust Gas Recirculation Control Module B

U010B is an OBD-II diagnostic trouble code meaning: Lost Communication With Exhaust Gas Recirculation Control Module B. Common causes: open or short circuit in the power supply circuit of the egr b module, damage to the wiring harness to the egr module b. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Deterioration in acceleration dynamics
  • Increased fuel consumption
  • Unstable engine operation at idle
  • Possible detonation knocks

Causes

  • Open or short circuit in the power supply circuit of the EGR B module
  • Damage to the wiring harness to the EGR module B
  • Malfunction of the EGR control module B itself
  • Connector problems or contact corrosion
  • Failures in the control unit software

How to Fix

  1. Check fuses related to the EGR system
  2. Inspect the EGR B module wiring harness and connectors for damage.
  3. Check supply voltage and ground of EGR module B
  4. Scan EGR module B for additional trouble codes
  5. If necessary, replace EGR control module B

Related codes

U010AU0109P0401

Error U010B by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the U010B code mean?

U010B is an OBD-II diagnostic trouble code that indicates: Lost Communication With Exhaust Gas Recirculation Control Module B

What causes a U010B error code?

The most common causes of U010B include: Open or short circuit in the power supply circuit of the EGR B module; Damage to the wiring harness to the EGR module B; Malfunction of the EGR control module B itself; Connector problems or contact corrosion.

How do I fix a U010B diagnostic trouble code?

To fix U010B: Check fuses related to the EGR system. Inspect the EGR B module wiring harness and connectors for damage.. Check supply voltage and ground of EGR module B. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U010B?

Yes, but get it checked soon

How much does it cost to fix U010B?

The estimated repair cost for U010B is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat