OBD Guide
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P0614

ECM/TCM Incompatible

P0614 is an OBD-II diagnostic trouble code meaning: ECM/TCM Incompatible. Common causes: installing an engine ecu without pairing with the tcm, installing tcm without pairing with engine ecu. Estimated repair cost: $33–333.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–333 (est.)

Symptoms

  • The Check Engine light comes on
  • Automatic transmission in emergency mode
  • Incorrect interaction between engine and transmission
  • Errors in two control units at once
  • Problems after replacing the ECU or TCM

Causes

  • Installing an engine ECU without pairing with the TCM
  • Installing TCM without pairing with engine ECU
  • Incompatible ECU and TCM software versions
  • Corruption of identification data in the memory of one of the blocks
  • Replacing blocks from a different model or year of manufacture

How to Fix

  1. Read error codes from both units - ECU and TCM
  2. Check VIN and software versions of both units
  3. Make sure the installed units are compatible according to the spare parts catalog
  4. Perform the pairing procedure between the ECU and TCM via a dealer scanner
  5. If the software is incompatible, update the firmware of one or both units
  6. Contact an Authorized Dealer for Programming

Related codes

P0613P0630P0631P0700

Error P0614 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0614 code mean?

P0614 is an OBD-II diagnostic trouble code that indicates: ECM/TCM Incompatible

What causes a P0614 error code?

The most common causes of P0614 include: Installing an engine ECU without pairing with the TCM; Installing TCM without pairing with engine ECU; Incompatible ECU and TCM software versions; Corruption of identification data in the memory of one of the blocks.

How do I fix a P0614 diagnostic trouble code?

To fix P0614: Read error codes from both units - ECU and TCM. Check VIN and software versions of both units. Make sure the installed units are compatible according to the spare parts catalog. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0614?

Do not drive — repair immediately

How much does it cost to fix P0614?

The estimated repair cost for P0614 is $33–333. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat