OBD Guide

P28EB

Shift Motor Position Not Learned

P28EB is an OBD-II diagnostic trouble code meaning: Shift Motor Position Not Learned. Common causes: the procedure for learning the motor positions has not been completed, mechanical problems with shift motor. Estimated repair cost: $17–89.

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

FAQ

What does the P28EB code mean?

P28EB is an OBD-II diagnostic trouble code that indicates: Shift Motor Position Not Learned

What causes a P28EB error code?

The most common causes of P28EB include: 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.

How do I fix a P28EB diagnostic trouble code?

To fix P28EB: Check the mechanical condition of the shift motor. Check wiring and connections. Perform the procedure for studying motor positions. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P28EB?

Limited driving only, diagnose soon

How much does it cost to fix P28EB?

The estimated repair cost for P28EB is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat