OBD Guide

P26F0

Starter Relay A Stuck On

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$6–28 (est.)

Symptoms

  • The starter continues to operate after the engine starts
  • Clicking or buzzing noise from the starter relay
  • Low battery
  • Burnt smell from starter
  • Trouble restarting the engine

Causes

  • Mechanical sticking of relay contacts
  • Short circuit in relay control circuit
  • Engine control unit malfunction
  • Damage to the wiring to the starter relay
  • Low battery voltage

How to Fix

  1. Check the condition of the starter relay and replace if necessary
  2. Check relay control circuit for short circuit
  3. Check the condition of the wiring to the starter relay
  4. Check battery voltage and terminal condition
  5. Scan the engine control unit for errors

Related codes

Error P26F0 by Vehicle Brand