Renault Trafic CF59F89 & U059F Adblue Dosing Module Missing Message

Thinkscan 689BT used in the video can be purchased here... https://mythinkcar.com/?ref=dnnktcax Discount code: JIMMYORILEY AdBlue Fault: Resolving the CF59F89 and U059F NOx Sensor Issues If you've ever faced a dashboard full of warning lights and cryptic messages like "Check Anti-Pollution System", you know how frustrating it can be. This is the tale of a Renault Trafic with persistent errors tied to the AdBlue system, leaving its owner scratching their head. Let's break it all down and walk through resolving these common issues. What Was Wrong With This Renault Trafic? The vehicle in question had a "Check Anti-Pollution System" warning, along with the engine management and spanner lights illuminated. The error codes pointed towards problems within the AdBlue system, specifically linked to the dosing module and NOx sensors. Like many, the customer had been given vague advice—"it might be this, or it might be that.” Various components had already been tried, including: Replacing the AdBlue module. Cleaning the Diesel Particulate Filter (DPF). Checking NOx (Nitrogen Oxide) sensors. Despite these efforts, the error codes kept returning. Digging into the Error Codes Using a diagnostic tool, clearer insights were obtained. The tool revealed two key error codes: CF59F87 - AdBlue Dosing Module Missing Message. U059F - Invalid Data from NOx Sensor 1. These codes provided more clarity, pointing towards the NOx sensor as the likely culprit. It’s a known issue with Renault Trafic vans and their badge-engineered siblings like the Opel Vivaro and Nissan NV300. Why the NOx Sensor Was the Likely Problem The NOx sensor plays a vital role in monitoring emissions and controlling the AdBlue system. When it fails, you might get errors misdiagnosing the AdBlue module as faulty. This confusion often leads to unnecessary and expensive part replacements. To verify the issue, a few checks were done: Ensuring proper voltage and signals at the sensor wiring. Confirming wiring was intact and connectors clean. Ordering the Right Part Once it became clear that NOx Sensor 1 was the problem, the next step was ordering the replacement. However, these sensors don’t come cheap (up to £400 in some cases). To avoid wasting money, it's essential to confirm which sensor—if any—needs replacing before ordering. Clearing the Code Post-Repair After swapping the old NOx sensor with a new one, the fault codes were cleared using the diagnostic tool. A quick rescan of the system showed that all errors were gone. The “Check Anti-Pollution System” message also disappeared, confirming the fix. Key Takeaways for Addressing AdBlue Faults Use a proper diagnostic tool: Don’t rely solely on guesswork. A tool like the T Canan 689 BT can help pinpoint issues. Double-check common causes: NOx sensors and wiring problems often mimic AdBlue module faults. Order parts wisely: Don’t buy expensive parts like NOx sensors unless you're certain they’re needed. Test after repairs: Run another scan after replacing components to ensure the issue is resolved. Conclusion If your Renault Trafic, or any similar van, keeps throwing AdBlue or anti-pollution system errors, chances are you’re dealing with a NOx sensor problem rather than the module itself. As demonstrated here, a logical diagnostic process can save you from spending unnecessarily on parts and labour. Don't let dashboard errors drive you mad. With the right tools, a bit of patience, and some know-how, you can pinpoint and fix even the most stubborn faults.