OBD Guide

P25A5

Fuel Mode Select Switch Performance

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Incorrect engine operation when switching modes
  • Check Engine Light Illuminates
  • Reduced engine power
  • Increased fuel consumption

Causes

  • Fuel mode switch malfunction
  • Open or short circuit in the electrical circuit
  • Poor contact in connectors
  • Software error in the engine control unit

How to Fix

  1. Check the condition of the fuel mode switch
  2. Check the integrity of the electrical circuit and connectors
  3. Scan the engine control unit for errors
  4. Replace the fuel mode switch if necessary

Related codes

Error P25A5 by Vehicle Brand