OBD Guide

P25F0

Vacuum Pump Control Circuit B Low

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Deterioration of the brake system
  • Unusual noises from the vacuum pump
  • Reduced efficiency of other systems using vacuum

Causes

  • Open or short circuit in control circuit
  • Vacuum pump malfunction
  • Relay or fuse problems
  • Control unit malfunction

How to Fix

  1. Check the integrity of the control circuit
  2. Check the condition of connectors and wiring
  3. Check the operation of the vacuum pump
  4. Replace faulty components

Related codes

Error P25F0 by Vehicle Brand