OBD Guide

P258D

Vacuum Pump Control Circuit A High

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Deterioration of the brake system
  • Vacuum pump noise
  • Unstable engine operation at idle
  • Increased fuel consumption

Causes

  • Open or short circuit in control circuit
  • Faulty vacuum pump relay
  • Problems with the engine control unit
  • Malfunction of the vacuum pump itself
  • Poor contact in connectors or corrosion

How to Fix

  1. Check the integrity of the vacuum pump control circuit
  2. Check the operation of the vacuum pump relay
  3. Diagnose the condition of the vacuum pump
  4. Check connectors and connections for corrosion
  5. If necessary, replace the vacuum pump or relay

Related codes

Error P258D by Vehicle Brand