P2401

EVAP System Leak Detection Pump Control Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine Light Is On
Increased fuel consumption
Difficulties in engine idle speed
Unstable engine operation
Smell of gasoline in the cabin

Causes

Open or short circuit in the pump control circuit
Leak detection pump malfunction
Poor contact in circuit connectors
Problems with the engine control module
Corroded contacts or damaged wiring harness

How to Fix

Check the integrity of the pump control circuit
Check connections and connectors of the pump
Test the leak detection pump
Check the functionality of the control module
Replace damaged components if necessary

Related codes

P2402 P2400 P0440