Engine-CodesGeneric – P258D

P258D Code - Vacuum Pump Control Circuit High

Quick Answer

The P258D code indicates a problem with the vacuum pump control circuit in the vehicle. Common causes include Faulty vacuum pump, Damaged or corroded wiring in the vacuum pump control circuit, Faulty vacuum pump relay. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P258D indicates Vacuum Pump Control Circuit High.
Common causes
Common causes include Faulty vacuum pump, Damaged or corroded wiring in the vacuum pump control circuit, Faulty vacuum pump relay.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P258D Description

The P258D code indicates a problem with the vacuum pump control circuit in the vehicle. The vacuum pump is responsible for creating vacuum pressure that is used for various functions within the vehicle, such as powering the brake booster, controlling the turbocharger wastegate, or operating the HVAC system. When the control circuit for the vacuum pump is reading a high voltage signal, it means that there is an issue with the electrical components that control the pump's operation.

OBDII Code P258D - Vacuum Pump Control Circuit High
P258D Code - Vacuum Pump Control Circuit High

Common Causes of P258D

  1. Faulty vacuum pump
  2. Damaged or corroded wiring in the vacuum pump control circuit
  3. Faulty vacuum pump relay
  4. Issues with the vacuum pump control module
  5. Vacuum leak in the system

Symptoms of P258D

  1. Hard or spongy brake pedal
  2. Reduced engine performance
  3. Illuminated Check Engine Light
  4. HVAC system not functioning correctly
  5. Turbocharger issues

How to Fix P258D

  1. Diagnose the specific cause of the high voltage signal in the vacuum pump control circuit using a scan tool.
  2. Inspect the wiring and connections in the vacuum pump control circuit for any damage or corrosion.
  3. Test the vacuum pump relay and control module for proper operation and replace if necessary.
  4. Inspect the vacuum pump for any signs of damage or malfunction and replace if needed.
  5. Clear the diagnostic trouble codes, reset the system, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P258D

The cost of repairing a P258D code can vary depending on the specific cause of the issue and the vehicle's make and model. On average, the repair costs for this issue can range from $200 to $500, including parts and labor. Keep in mind that the actual cost may be higher or lower based on the severity of the problem and the rates charged by the auto repair shop. It is recommended to get a detailed quote from a trusted mechanic before proceeding with the repair.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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