OBD-II code · Powertrain (generic)
P0415 Secondary Air Injection System Switching Valve B Circuit
Secondary Air Injection System Switching Valve B Circuit: an electrical fault is present in the circuit.
Is it safe to drive with P0415?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySolenoid fault
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2.5 h
- Emissions test
- Likely to fail
- Parts involved
- Secondary Air Injection Valve
Related codes
- P0412Secondary Air Injection System Switching Valve A Circuit
- P0413Secondary Air Injection System Switching Valve A Circuit Open
- P0414Secondary Air Injection System Switching Valve "A" Circuit Shorted
- P0416Secondary Air Injection System Switching Valve B Circuit Open
- P0417Secondary Air Injection System Switching Valve B Circuit Shorted
- P0418Secondary Air Injection System Relay "A" Circuit Malfunction
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.