OBD Guide

P270B

Transmission Friction Element B Temperature Too High

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

Symptoms

  • Transmission overheating
  • Hard or delayed gear shifts
  • Slipping when switching
  • Enabling emergency operation of the automatic transmission
  • Burnt smell from transmission

Causes

  • Low or contaminated transmission fluid
  • Malfunction of the automatic transmission cooling system
  • Wear of friction elements
  • Problems with shift solenoids
  • Transmission temperature sensor malfunction

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Diagnose the automatic transmission cooling system
  3. Check operation of shift solenoids
  4. Scan the transmission for additional trouble codes
  5. If necessary, replace friction elements

Related codes

Error P270B by Vehicle Brand