OBD Guide

P25C0

Alternative Fuel Disable Control Circuit Low

P25C0 is an OBD-II diagnostic trouble code meaning: Alternative Fuel Disable Control Circuit Low. Common causes: open or short circuit in control circuit, alternate fuel system sensor malfunction. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Check Engine light comes on
  • The car may go into emergency mode
  • Reduced engine power
  • Problems with switching between fuel types
  • Increased fuel consumption

Causes

  • Open or short circuit in control circuit
  • Alternate fuel system sensor malfunction
  • Alternate Fuel System Control Module Problems
  • Poor contact in connectors or corrosion
  • Faulty relay or fuse

How to Fix

  1. Check the integrity of the control circuit
  2. Diagnose alternative fuel system sensors
  3. Check connections and connectors for corrosion
  4. Replace faulty components (relays, fuses)
  5. Flash or replace the control module if necessary

Related codes

Error P25C0 by Vehicle Brand

FAQ

What does the P25C0 code mean?

P25C0 is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Disable Control Circuit Low

What causes a P25C0 error code?

The most common causes of P25C0 include: Open or short circuit in control circuit; Alternate fuel system sensor malfunction; Alternate Fuel System Control Module Problems; Poor contact in connectors or corrosion.

How do I fix a P25C0 diagnostic trouble code?

To fix P25C0: Check the integrity of the control circuit. Diagnose alternative fuel system sensors. Check connections and connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P25C0?

Yes, but get it checked soon

How much does it cost to fix P25C0?

The estimated repair cost for P25C0 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat