OBD Guide

P25B2

Fuel Level Sensor A or B Stuck

P25B2 is an OBD-II diagnostic trouble code meaning: Fuel Level Sensor A or B Stuck. Common causes: fuel level sensor float jammed, sensor potentiometer wear. Estimated repair cost: $17–56.

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

Symptoms

  • Incorrect fuel level readings on the dashboard
  • Fuel level needle does not move
  • False low fuel warning
  • Discrepancy between actual fuel level and readings
  • Flashing fuel level indicator

Causes

  • Fuel level sensor float jammed
  • Sensor potentiometer wear
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Control unit malfunction

How to Fix

  1. Check the condition of the fuel level sensor in the tank
  2. Test the sensor electrical circuit
  3. Check sensor resistance in different positions
  4. Clean or replace a jammed sensor
  5. Check connections and wiring harness

Related codes

Error P25B2 by Vehicle Brand

FAQ

What does the P25B2 code mean?

P25B2 is an OBD-II diagnostic trouble code that indicates: Fuel Level Sensor A or B Stuck

What causes a P25B2 error code?

The most common causes of P25B2 include: Fuel level sensor float jammed; Sensor potentiometer wear; Open or short circuit in the sensor circuit; Poor contact in the sensor connector.

How do I fix a P25B2 diagnostic trouble code?

To fix P25B2: Check the condition of the fuel level sensor in the tank. Test the sensor electrical circuit. Check sensor resistance in different positions. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P25B2?

Yes, but get it checked soon

How much does it cost to fix P25B2?

The estimated repair cost for P25B2 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat