P25F1

Vacuum Pump Control Circuit B High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–167 (est.)

Symptoms

Check Engine Light Is On
Deterioration in brake performance
Increased fuel consumption
Unstable engine operation at idle
Vacuum pump noise

Causes

Open or short circuit in control circuit
Vacuum pump malfunction
Problems with the engine control unit
Wiring harness damage
Poor contact in connectors

How to Fix

Check the integrity of the vacuum pump control circuit
Check the operation of the vacuum pump
Inspect connectors and connections for corrosion or damage
Check control circuit voltage
If necessary, replace the vacuum pump or repair the wiring

Related codes

P25F0 P25F2 P25F3