Error code
OBD2 P0416
OBD2P0416
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Secondary Air Injection System Switching Valve 'B' Circuit Open.
Severity
moderateCan drive, but may experience reduced performance and increased emissions.
Summary
P0416 indicates an open circuit in the Secondary Air Injection System Switching Valve 'B', which is part of the air injection system that helps reduce emissions.
Common Causes
- Wiring open circuit
- Faulty AIR solenoid B
- ECM malfunction
Fixes
- Replace the faulty AIR solenoid B or repair any open circuits in the wiring.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P0400Exhaust Gas Recirculation Flow
- P0401Exhaust Gas Recirculation Flow Insufficient Detected
- P0402Exhaust Gas Recirculation Flow Excessive Detected
- P0403Exhaust Gas Recirculation Control Circuit
- P0404Exhaust Gas Recirculation Control Circuit Range/Performance
- P0405Exhaust Gas Recirculation Sensor 'A' Circuit Low
- P0406Exhaust Gas Recirculation Sensor 'A' Circuit High
- P0407Exhaust Gas Recirculation Sensor 'B' Circuit Low
- P0408Exhaust Gas Recirculation Sensor 'B' Circuit High
- P0409Exhaust Gas Recirculation Sensor 'A' Circuit
- P0410Secondary Air Injection System
- P0411Secondary Air Injection System Incorrect Flow Detected