OBD Guide

P2878

Clutch B Disengagement Time Too Fast

P2878 is an OBD-II diagnostic trouble code meaning: Clutch B Disengagement Time Too Fast. Common causes: worn clutch friction discs b, leaks in the hydraulic system. Estimated repair cost: $56–222.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–222 (est.)

Symptoms

  • Sharp gear changes
  • Delays when shifting gears
  • Dips during acceleration
  • Increased fuel consumption
  • Check Engine Light Illuminates

Causes

  • Worn clutch friction discs B
  • Leaks in the hydraulic system
  • Malfunction of control solenoids
  • Contaminated or low transmission fluid level
  • Transmission control module (TCM) problems

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Diagnose the hydraulic system for leaks
  3. Check operation of control solenoids
  4. Inspect clutch friction discs B
  5. If necessary, replace worn clutch components

Related codes

Error P2878 by Vehicle Brand

FAQ

What does the P2878 code mean?

P2878 is an OBD-II diagnostic trouble code that indicates: Clutch B Disengagement Time Too Fast

What causes a P2878 error code?

The most common causes of P2878 include: Worn clutch friction discs B; Leaks in the hydraulic system; Malfunction of control solenoids; Contaminated or low transmission fluid level.

How do I fix a P2878 diagnostic trouble code?

To fix P2878: Check the level and condition of the transmission fluid. Diagnose the hydraulic system for leaks. Check operation of control solenoids. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2878?

Yes, but get it checked soon

How much does it cost to fix P2878?

The estimated repair cost for P2878 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat