P25EF

Vacuum Pump Control Circuit B Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–167 (est.)

Symptoms

Check Engine Light Is On
Deterioration in braking performance
Unstable engine operation at idle
Increased fuel consumption
The car goes into emergency mode

Causes

Vacuum pump malfunction
Problems with wiring or connectors
Faulty relay or fuse
Problems with the engine control unit
Mechanical damage to vacuum hoses

How to Fix

Check the condition of the vacuum pump
Diagnose the pump control circuit
Check relays and fuses
Inspect the wiring harness and connectors
If necessary, replace the vacuum pump

Related codes

P25EE P25F0 P25F1