P2402

EVAP System Leak Detection Pump Control Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine Light Is On
Increased fuel consumption
Dips when the engine is idling
Unpleasant smell of gasoline in the cabin
Increased level of harmful emissions

Causes

Short circuit in the EVAP pump control circuit to positive
Leak detection pump malfunction
Damage to the EVAP system wiring harness
Problems with the system relay or fuse
Engine control unit malfunction

How to Fix

Check EVAP system fuses and relays
Inspect the wiring harness for damage
Check the resistance of the leak detection pump
Check control circuit for short circuit
Replace faulty leak detection pump if necessary

Related codes

P2401 P2403 P0440