P258C

Vacuum Pump Control Circuit A Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine Light Is On
Deterioration in braking performance
Unusual noises from the vacuum pump
Loss of engine power
Activating emergency mode

Causes

Open or short circuit in control circuit
Vacuum pump malfunction
Relay or fuse problems
Wiring harness damage
Engine control unit malfunction

How to Fix

Check the integrity of the control circuit
Check the condition of the vacuum pump
Check relays and fuses
Inspect the wiring harness for damage
Diagnose the engine control unit

Related codes

P258D P258B P258A