OBD Guide
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P278F

Clutch B Adaptive Learning at Limit

P278F is an OBD-II diagnostic trouble code meaning: Clutch B Adaptive Learning at Limit. Common causes: clutch wear, insufficient level or contamination of transmission fluid. Estimated repair cost: $56–333.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–333 (est.)

Symptoms

  • Difficulty shifting gears
  • Clutch slipping
  • Jerks when shifting gears
  • Power Loss
  • Enabling transmission emergency mode

Causes

  • Clutch wear
  • Insufficient level or contamination of transmission fluid
  • Malfunction of the hydraulic clutch control system
  • Malfunction of clutch control solenoids
  • Transmission control unit (TCU) malfunction

How to Fix

  1. Check the level and condition of the transmission fluid. If necessary, add or replace fluid.
  2. Check the clutch hydraulic system for leaks or damage.
  3. Check the clutch control solenoids for proper operation.
  4. Perform clutch adaptive learning again using diagnostic equipment.
  5. Replace the clutch if it is worn.

Related codes

P278AP278BP278CP278D

Error P278F by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P278F code mean?

P278F is an OBD-II diagnostic trouble code that indicates: Clutch B Adaptive Learning at Limit

What causes a P278F error code?

The most common causes of P278F include: Clutch wear; Insufficient level or contamination of transmission fluid; Malfunction of the hydraulic clutch control system; Malfunction of clutch control solenoids.

How do I fix a P278F diagnostic trouble code?

To fix P278F: Check the level and condition of the transmission fluid. If necessary, add or replace fluid.. Check the clutch hydraulic system for leaks or damage.. Check the clutch control solenoids for proper operation.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P278F?

Yes, but get it checked soon

How much does it cost to fix P278F?

The estimated repair cost for P278F is $56–333. Actual cost depends on your vehicle, location, and labor rates.

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