P1413
Secondary Air Injection System Monitor Circuit Low Voltage
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)
Symptoms
- Check Engine Light Is On
- Increased emissions
- Unstable engine idling
- Reduced engine power
- Noise from the secondary air pump
Causes
- Open or short circuit in the sensor circuit
- Secondary air pressure/flow sensor malfunction
- Problems with the system relay or fuse
- Secondary air pump malfunction
- Problems with the engine control unit
How to Fix
- Check the integrity of the wiring and connections in the circuit
- Check the functionality of the secondary air pressure/flow sensor
- Check system relays and fuses
- Test the secondary air pump
- Read system operating parameters using an OBD-II scanner