P1412
Secondary Air Injection System Fault Bank 1
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)
Symptoms
- Check Engine Light Is On
- Increased emissions
- Deterioration in acceleration dynamics
- Unstable operation at idle
- Possible noise from the area of the secondary air pump
Causes
- Secondary air pump malfunction
- Damaged or clogged air tubes
- Problems with the system solenoid valve
- Open or short circuit in control circuit
- Secondary air pump relay malfunction
How to Fix
- Check the operation of the secondary air pump
- Inspect the air tubes for damage
- Check the condition of the solenoid valve
- Diagnose control circuit and relay
- Scan the system for other errors