TorqueMech OBD Code Guide
P0414 - Secondary Air Injection System Switching Valve A Circuit Shorted
The switching valve A circuit is shorted.
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Check likely system
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Code Overview
The switching valve A circuit is shorted.
Common Causes
- Failed secondary air pump or valve
- Damaged relay, fuse, or wiring
- Restricted air passages or hoses
Diagnostic Steps
- Inspect pump, valves, and hoses for damage
- Check related fuse and relay operation
- Command the system on and confirm airflow if supported
Related OBD Codes
Browse nearby codes when systems overlap.
Next Steps
Move from code to checks, then estimate.