How to Access the NOx Storage Catalyst Learning Value Reset in the OBD Scanner

Learn  to Access the NOx Storage Catalyst Learning Value Reset in the OBD Scanner

The NOx Storage Catalyst Learning Value Reset is a process that resets the learning value of the NOx (Nitrogen Oxides) storage catalyst in a vehicle’s exhaust system. The NOx storage catalyst is a component of the Selective Catalytic Reduction (SCR) system, which reduces NOx emissions from diesel engines.

When to use it?
The NOx Storage Catalyst Learning Value Reset is typically performed under the following conditions:

1. After replacing the NOx sensor or catalyst: When the NOx sensor or catalyst is replaced, the learning value needs to be reset to ensure accurate NOx emission monitoring and control.
2. After performing a diesel particulate filter (DPF) regeneration: DPF regeneration can affect the NOx storage catalyst’s performance, so a reset is necessary to maintain optimal NOx emission control.
3. When the vehicle’s onboard diagnostics (OBD) system detects an issue: If the OBD system detects a problem with the NOx storage catalyst or SCR system, a reset may be required to resolve the issue.

Why is it necessary?
The NOx Storage Catalyst Learning Value Reset is important for several reasons:

1. Ensures accurate NOx emission monitoring: The learning value reset ensures that the NOx sensor provides accurate readings, which is crucial for maintaining optimal NOx emission control.
2. Maintains optimal SCR system performance: The reset helps to maintain the optimal performance of the SCR system, which reduces NOx emissions and minimizes the environmental impact of the vehicle.
3. Prevents excessive NOx emissions: If the learning value is not reset, the vehicle may emit excessive NOx, which can contribute to air pollution and negatively impact the environment.
4. Helps to prevent damage to the SCR system: Failing to reset the learning value can lead to damage to the SCR system, which can result in costly repairs.

Importance
The NOx Storage Catalyst Learning Value Reset is a critical process that ensures the optimal performance of the SCR system and minimizes the environmental impact of diesel engines. By performing this reset, vehicle manufacturers and repair technicians can:

1. Meet emissions regulations: The reset helps to ensure that vehicles meet emissions regulations and minimize their environmental footprint.
2. Maintain vehicle performance: The reset helps to maintain optimal vehicle performance, which is essential for safe and efficient operation.
3. Reduce maintenance costs: By preventing damage to the SCR system, the reset can help to reduce maintenance costs and extend the lifespan of the vehicle.

In summary, the NOx Storage Catalyst Learning Value Reset is a crucial process that ensures the optimal performance of the SCR system, maintains accurate NOx emission monitoring, and minimizes the environmental impact of diesel engines.

Instruction to Access the NOx Storage Catalyst Learning Value Reset in the OBD Scanner

TheNOx Storage Catalyst Learning Value Reset can be accessed by following this instruction.

1. Open your OBD scanner.
2. Select Local Diagnose if you are using Launch X431.
3. Select Car Brand Select Model (auto-detect is better to detect the vehicle VIN).
4. Select and check the following: ECMECT (Engine and ECT), ECM (Engine Control Module)
5. Select Special Function Then click NOx Storage Catalyst Learning Value Reset then follow the screen instruction.

The sample car model with this feature is the Toyota Avensis 2015.