OBD Guide

P28EB

Shift Motor Position Not Learned

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Incorrect gear shifting
  • Hard or delayed shifts
  • Check Engine Light Illuminates
  • Automatic transmission goes into emergency mode
  • Errors related to the position of the gear selector

Causes

  • The procedure for learning the motor positions has not been completed
  • Mechanical problems with shift motor
  • Problems with wiring or motor connection
  • Malfunction of the automatic transmission control unit
  • Dirty or worn shift mechanism

How to Fix

  1. Check the mechanical condition of the shift motor
  2. Check wiring and connections
  3. Perform the procedure for studying motor positions
  4. If necessary, replace the shift motor
  5. Check and, if necessary, replace the automatic transmission control unit

Related codes

Error P28EB by Vehicle Brand