P258B

Vacuum Pump Control Circuit A Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–111 (est.)

Symptoms

Deterioration in the effectiveness of the braking system
Check Engine Light Is On
Reduced engine power
Unstable engine operation at idle

Causes

Vacuum pump malfunction
Problems with the wiring harness or connectors
Control module malfunction
Damaged or clogged vacuum hoses

How to Fix

Check the vacuum pump for mechanical damage
Check the integrity of the wiring harness and connectors
Check control module
Replace damaged vacuum hoses

Related codes

P258A P258C P258D