OBD Guide

P07AA

Transmission Friction Element E Performance/Stuck Off

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–278 (est.)

Symptoms

  • Incorrect gear shifting
  • Slipping when switching
  • Increased engine speed when switching
  • Delays when shifting gears
  • Transmission transition to emergency mode

Causes

  • Friction disc wear
  • Low or contaminated transmission fluid
  • Hydraulic pressure problems
  • Malfunction of control solenoids
  • Mechanical damage in the gearbox

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Conduct pressure diagnostics in the hydraulic system
  3. Check operation of control solenoids
  4. Perform gearbox adaptation
  5. If necessary, replace friction elements

Related codes

Error P07AA by Vehicle Brand