OBD Guide

P25BF

Alternative Fuel Disable Control Circuit High

P25BF is an OBD-II diagnostic trouble code meaning: Alternative Fuel Disable Control Circuit High. Common causes: open or short circuit in control circuit, faulty relay or fuse. 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
  • Inability to switch to alternative fuel
  • Reduced engine power
  • Unstable engine operation
  • Increased fuel consumption

Causes

  • Open or short circuit in control circuit
  • Faulty relay or fuse
  • Wiring harness damage
  • Alternate fuel control module malfunction
  • Problems with the alternative fuel system sensor

How to Fix

  1. Check the integrity of the control circuit
  2. Check relays and fuses
  3. Inspect the wiring harness for damage
  4. Check the operation of the control module
  5. Replace faulty components

Related codes

Error P25BF by Vehicle Brand

FAQ

What does the P25BF code mean?

P25BF is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Disable Control Circuit High

What causes a P25BF error code?

The most common causes of P25BF include: Open or short circuit in control circuit; Faulty relay or fuse; Wiring harness damage; Alternate fuel control module malfunction.

How do I fix a P25BF diagnostic trouble code?

To fix P25BF: Check the integrity of the control circuit. Check relays and fuses. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P25BF?

Yes, but get it checked soon

How much does it cost to fix P25BF?

The estimated repair cost for P25BF is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat