Nissan, Infiniti Warning Message
“Service Engine Soon”
Nissan's equivalent of the check engine light. The ECM has detected a fault that may affect emissions or engine performance. The specific fault code must be read with a scan tool.
moderate severity
Common Causes
- Catalytic converter efficiency fault
- Mass airflow sensor contamination
- Evaporative emission system leak
- Ignition coil failure
- Camshaft position sensor fault
Immediate Action
Vehicle is drivable. Schedule diagnostic service to read the stored fault codes and determine the specific repair needed.
Typical Repair Cost
$100–$2,000