OBD Guide

P25C3

Alternative Fuel Disable Signal Circuit Low

P25C3 is an OBD-II diagnostic trouble code meaning: Alternative Fuel Disable Signal Circuit Low. Common causes: open or short circuit in the circuit, alternate fuel cut-off sensor malfunction. 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
  • Deterioration of vehicle dynamics
  • Problems with switching to alternative fuels
  • Unstable engine operation

Causes

  • Open or short circuit in the circuit
  • Alternate fuel cut-off sensor malfunction
  • Problems with the control module
  • Wiring harness damage

How to Fix

  1. Check the continuity of the shutdown signal circuit
  2. Check the condition of connectors and contacts
  3. Check the functionality of the sensor
  4. Check control module

Related codes

Error P25C3 by Vehicle Brand

FAQ

What does the P25C3 code mean?

P25C3 is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Disable Signal Circuit Low

What causes a P25C3 error code?

The most common causes of P25C3 include: Open or short circuit in the circuit; Alternate fuel cut-off sensor malfunction; Problems with the control module; Wiring harness damage.

How do I fix a P25C3 diagnostic trouble code?

To fix P25C3: Check the continuity of the shutdown signal circuit. Check the condition of connectors and contacts. Check the functionality of the sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P25C3?

Yes, but get it checked soon

How much does it cost to fix P25C3?

The estimated repair cost for P25C3 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat