P0414

AIR System Switching Valve A Circuit Shorted

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Increased level of harmful emissions
Visible damage to wiring near the secondary air system valve

Causes

Damage to the secondary air system wiring harness
Short circuit in the system solenoid valve
Corrosion or oxidation of contacts
Engine control unit malfunction

How to Fix

Visually check the wiring harness and connectors for damage
Checking the resistance of the secondary air system solenoid valve
Checking the voltage supply to the valve when the ignition is turned on
Replacing damaged wires or faulty valve
Reset error code and test drive

Related codes

P0410 P0411 P0412 P0413