Kenworth GHG21 Error Code Cleaner (DTC Eraser) – Plug Play OBD Fault Code Reset Tool The Kenworth GHG21 Error Code Cleaner is a plug-and-play diagnostic tool designed to safely and efficiently clear error codes in Kenworth GHG21 trucks. By connecting directly to the vehicle’s OBD port, this device instantly removes active and stored (passive) fault codes — restoring your truck’s normal performance and reducing downtime without requiring any technical expertise. Developed specifically for Kenworth GHG21 models, this OBD fault code eraser ensures your truck continues operating smoothly, free of unnecessary diagnostic alerts or performance limitations caused by system faults. How the Kenworth GHG21 DTC Eraser Works The device connects to the OBD diagnostic socket and automatically detects and clears all stored error codes. Its plug-and-play functionality makes it easy to use — no software, cables, or additional tools are required. This DTC eraser not only clears active fault codes but also removes previously stored passive errors, including common diagnostic codes such as: P0420 – Low Catalytic Converter Efficiency P0300 – Random or Multiple Cylinder Misfire P0606 – Engine Control Module Fault P0442 / P0455 – Small or Large Fuel Vapor Leak By clearing these stored codes, the device helps maintain optimal vehicle performance and prevents false error warnings from reappearing. Supported Systems – Kenworth GHG21 DTC Eraser The Kenworth GHG21 Error Code Cleaner effectively clears fault codes in all major vehicle systems, including: Brake System (EBS) Engine Control System (EMS) Vehicle Central Computer (GM) Automatic Transmission Tachograph (DTCO) Retarder Suspension System (ECAS) AdBlue / SCR System Additionally, the device supports disabling torque and speed reduction that may occur after an exhaust after-treatment system fault — once the damaged part has been repaired or replaced. Why Choose the Kenworth GHG21 Error Code Cleaner Modern Kenworth GHG21 trucks feature advanced emission control and diagnostic systems that may trigger frequent or false fault codes. The Kenworth GHG21 DTC Eraser provides a simple, fast, and reliable solution to reset and clear these codes — keeping your vehicle running efficiently and helping you avoid costly downtime or service visits. How to Use the Kenworth GHG21 Error Code Cleaner The process is simple and takes only a minute: Ignition On – Turn the ignition to the ON position (engine off). Connect the Device – Insert the cleaner into the vehicle’s OBD port. Wait 30 Seconds – Let the device initialize and communicate with the system. Ignition Off – Turn off the vehicle. Remove the Device – Unplug the tool from the OBD port. Wait 30 Seconds – Let the system reset. Start the Engine – The error codes should now be cleared. ? If the fault persists, repeat the steps or repair the underlying issue before clearing the code again. Attention! Using an AdBlue removal emulator is illegal, particularly in EU countries. The use of this device leads to increased exhaust gas emissions. Once you install and use an AdBlue removal emulator, your truck no longer complies with Euro 4, Euro 5, or Euro 6 emission standards. Our device is intended only for use in countries where Euro 4/5/6 environmental regulations are not enforced. The AdBlue removal emulator disables the flow of DEF (Diesel Exhaust Fluid) within the SCR system. Purchasing and using this device is a personal decision. Our company is not responsible for any legal consequences that may arise from this choice. Delivery times provided are estimates. Actual delivery times may vary due to carrier-related delays. We ship items as quickly as possible, but in some circumstances, it can take up to three business days for an item to be shipped. Once an item leaves our hand, we have no control over when it gets delivered. We only ship to the confirmed shipping address provided to us at the time of purchase. We cannot change the delivery address after a purchase has been made, so please ensure that your shipping address is correct. Please note that customs clearance may incur additional charges, which are the responsibility of the buyer.