- Faulty oxygen sensors: Oxygen sensors monitor the amount of oxygen in the exhaust gas to ensure efficient combustion. If they fail or become dirty, they can trigger the service engine soon light.
- Problems in the emission control system: Issues such as a faulty catalytic converter, EVAP system malfunction, or problems with the EGR (Exhaust Gas Recirculation) system can cause this light to illuminate.
- Engine misfires: If the engine misfires, it can cause unburned fuel to reach the catalytic converter, damaging it and triggering the service engine soon light.
- Faulty spark plugs or ignition coils: Worn-out spark plugs or faulty ignition coils can lead to misfires, causing the service engine soon light to come on.
Traction Off Light:
- Faulty wheel speed sensors: These sensors monitor the speed of each wheel and help the traction control system determine if any wheel is slipping. If a sensor fails, the traction off light may turn on.
- Issues in the traction control module: The traction control module controls the traction off system, and a problem with the module itself could lead to the traction off light coming on.
- Open or shorted wiring: Damage or breaks in the wiring related to the traction off system can cause the traction off light to illuminate.
- Problems with the brake system: The traction off system is linked to the brake system, so issues such as low brake fluid or problems with the brake light switch can trigger the traction off light.
It is important to note that these are just possible causes and the exact reason for the lights coming on may vary based on the specific vehicle. It is recommended to have the vehicle diagnosed by a qualified mechanic to identify the root cause and ensure proper repairs are made.
