P0415

AIR System Switching Valve B Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–111 (est.)

Symptoms

Check Engine light comes on
Deterioration in acceleration dynamics
Increased fuel consumption
Unstable idle

Causes

Open or shorted valve wiring harness
AIR system solenoid valve malfunction
Problems with the relay or circuit fuse
Engine control unit error

How to Fix

Check the AIR system fuse and relay
Inspect the wiring harness for damage
Check the resistance and operation of the switching valve
Test the control circuit from the control unit
If necessary, replace the faulty component

Related codes

P0410 P0412 P0413 P0417 P0418