OBD Guide
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U0456

Invalid Data Received From Coolant Temperature Control Module

U0456 is an OBD-II diagnostic trouble code meaning: Invalid Data Received From Coolant Temperature Control Module. Common causes: malfunction of the coolant temperature control module, problems in the data transmission circuit (can bus). Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Incorrect engine temperature readings on the dashboard
  • Engine overheating
  • Increased fuel consumption
  • Unstable engine operation
  • Check Engine light comes on

Causes

  • Malfunction of the coolant temperature control module
  • Problems in the data transmission circuit (CAN bus)
  • Corroded or damaged contacts
  • Software errors in the module
  • Module power problems

How to Fix

  1. Check the integrity of the data transmission chain
  2. Inspect the module contacts for corrosion
  3. Check module power supply
  4. Scan the system for other errors
  5. If necessary, replace the temperature control module
  6. Update module software (if possible)

Related codes

U0455U0457U0121

Error U0456 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the U0456 code mean?

U0456 is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From Coolant Temperature Control Module

What causes a U0456 error code?

The most common causes of U0456 include: Malfunction of the coolant temperature control module; Problems in the data transmission circuit (CAN bus); Corroded or damaged contacts; Software errors in the module.

How do I fix a U0456 diagnostic trouble code?

To fix U0456: Check the integrity of the data transmission chain. Inspect the module contacts for corrosion. Check module power supply. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U0456?

Limited driving only, diagnose soon

How much does it cost to fix U0456?

The estimated repair cost for U0456 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat