OBD Guide

P2857

Clutch A Pressure Engagement Performance/Too Low

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Clutch slipping
  • Delays when shifting gears
  • Jerks when switching
  • Transmission overheating
  • Inability to engage gear

Causes

  • Wear of valve body sealing rings
  • Clogged valve body channels
  • Clutch solenoid malfunction
  • Problems with the pressure sensor
  • Breaks or short circuits in the control electrical network

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Diagnose the operation of clutch solenoids
  3. Check the pressure in the valve body
  4. Carry out computer diagnostics of TCM
  5. If necessary, replace the valve body or solenoids

Related codes

Error P2857 by Vehicle Brand