OBD Guide

P25A6

Fuel Mode Select Switch Circuit Low

P25A6 is an OBD-II diagnostic trouble code meaning: Fuel Mode Select Switch Circuit Low. Common causes: fuel mode switch malfunction, open or short circuit in the circuit. Estimated repair cost: $17–56.

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

Symptoms

  • Check Engine light comes on
  • Unstable engine operation
  • Problems with switching fuel modes
  • Reduced engine power

Causes

  • Fuel mode switch malfunction
  • Open or short circuit in the circuit
  • Poor contact in connectors
  • Engine control unit malfunction

How to Fix

  1. Check fuel mode switch
  2. Inspect the chain for damage
  3. Check connections and connectors
  4. Test the engine control unit

Related codes

Error P25A6 by Vehicle Brand

FAQ

What does the P25A6 code mean?

P25A6 is an OBD-II diagnostic trouble code that indicates: Fuel Mode Select Switch Circuit Low

What causes a P25A6 error code?

The most common causes of P25A6 include: Fuel mode switch malfunction; Open or short circuit in the circuit; Poor contact in connectors; Engine control unit malfunction.

How do I fix a P25A6 diagnostic trouble code?

To fix P25A6: Check fuel mode switch. Inspect the chain for damage. Check connections and connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P25A6?

Yes, but get it checked soon

How much does it cost to fix P25A6?

The estimated repair cost for P25A6 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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