Le dijeron que cambiara el abanico... y NO era (Jeep Cherokee 2015)

It's not all about replacing parts! 🛑 In this case, we received a 2015 Jeep Cherokee that had already been to other shops where they replaced the thermostat and temperature sensor without success. They even told the customer he had to buy the entire original cooling fan assembly. In this video, I'll show you how a professional diagnostic with a scanner and oscilloscope led us to the true root of the problem: a circuit failure that almost cost the owner a fortune. In this video, we'll see: Code analysis: P0480 (Fan control circuit) and U11E9 (Communication lost with AGS). Using diagrams: Signal tracing at connector I100A. Real-time testing: Bidirectional activation and oscilloscope signals. The AGS factor: Why the lack of active grille shutters disrupts PCM operation. ⚠️ THE PLOT TWIST! At the end of the video, it seems like everything was fixed... but the customer returned the next day because it overheated again. What really happened? We'll explain the continuation and the real outcome in our live stream this Thursday. SUBSCRIBE AND TURN ON NOTIFICATIONS! 🔔 👉    / @auto-tech   See you in the live streams to discuss real cases like this one. ⏱️ CHAPTERS: [00:00] Introduction: Presentation of the 2015 Jeep Cherokee and overheating symptoms. [01:31] Diagnostics with a scanner: Identifying the P0480 fault code and initial analysis. [02:44] Performance tests: Attempting to activate the fan using the scanner (PWM). [04:15] Analysis of the electrical diagram: Identifying power supplies, grounds, and control signals. [06:22] Oscilloscope Testing: Verifying voltages and signals at the module connector. [10:15] Persistent Active Code: Why the error code doesn't clear after initial tests. [13:20] Advanced Diagnostic Strategy: Signal injection to test wiring integrity. [16:30] Physical Inspection: Identifying damage to the wiring harness and evidence of a previous collision. [19:05] Fault Location: Pinpointing the exact location of the loose connection at the connector. [21:45] Repair and Confirmation: Soldering the circuit and successfully activating it. [24:50] System Maintenance: Antifreeze pressure test and airlift. [28:30] Active Grill Shutter (AGS) Diagnosis: Relationship between the grille and the fan. [29:50] Conclusion: Why the original fan wasn't the problem and final tips. Tools and Platforms Used in the video: Automotive Test Solutions: https://www.automotivetestsolutions.com/ Alladata: https://www.alldata.com/mx/es-mx/auto... Work Tablet (USED WITH THERMOTECHNICAL CAMERA): https://s.click.aliexpress.com/e/_oD6... TOPDON: https://amzn.to/45f9Sfw ░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░ #JeepCherokee #P0480 #AutomotiveDiagnostics #AutomotiveMechanics #JeepOverheating