The P0416 trouble code is associated with Secondary Air Injection System Switching Valve “B” Circuit Open, indicating an open circuit issue with the switching valve B in the secondary air injection system.
Secondary Air Injection System Switching Valve “B” Circuit Open
Code symptoms P0416.
1. Illuminated “Check Engine” or “Service Engine Soon” light on the dashboard.
2. Poor engine performance.
3. Increased emissions.
This code is common in brands such as:: Chevrolet, Renault, Ford, Toyota, Nissan, Mercedes Benz, Honda.
Causes of the code P0416.
1. Open circuit in the wiring of the switching valve B.
2. Faulty secondary air injection system switching valve B.
3. Problems with the Engine Control Module (ECM).
Code Solutions P0416.
1. Inspect and, if necessary, repair any open circuit issues in the wiring of the switching valve B.
2. Check and, if needed, replace the malfunctioning secondary air injection system switching valve B.
3. If ECM issues are suspected, consult a qualified technician for diagnosis and potential reprogramming or replacement.