AutoCodes – Generic – P258B

P258B Code - Vacuum Pump Control Range/Performance

Quick Answer

The Powertrain Control Module (PCM) monitors the Vacuum Pump Control Circuit signal. Common causes include Faulty Vacuum Pump Control, Vacuum Pump Control harness is open or shorted, Vacuum Pump Control circuit poor electrical connection. 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: P258B indicates Vacuum Pump Control Range/Performance.
Common causes: Common causes include Faulty Vacuum Pump Control, Vacuum Pump Control harness is open or shorted, Vacuum Pump Control circuit poor electrical connection.
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.

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Code Popularity 36,984

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 19, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P258B Description

The Powertrain Control Module (PCM) monitors the Vacuum Pump Control Circuit signal. The PCM sets the OBDII code when the Vacuum Pump Control Circuit signal is out factory specifications.

OBDII Code P258B - Vacuum Pump Control Range/Performance - AutoCodes.com — P258B Code - Vacuum Pump Control Range/Performance

What does this mean?

What are the Possible Causes of the DTC P258B?

Faulty Vacuum Pump Control
Vacuum Pump Control harness is open or shorted
Vacuum Pump Control circuit poor electrical connection

How to Fix the DTC P258B?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P258B code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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.