Ashok Leyland BS4 gadi mein EDC light continue hai gadi jo hai Chandi Se band nahin ho raha wiring

The EDC light on an Ashok Leyland BS4 vehicle is constantly on, and the wiring isn't going off with the car's moonlight. "Friends, if you enjoyed the video, please like and subscribe to the AK AllTech channel. If you're experiencing this problem with any truck, please ask in the comments. Thanks!" A persistent EDC (Electronic Diesel Control) light on an Ashok Leyland BS4 vehicle and the vehicle failing to start with the key usually indicates a major problem with the fuel and electronic controls. Let's understand in detail below: --- ✅ Main Causes (EDC Light + No Start) 1. Fuel Supply Problem Air in the Fuel Line Low Diesel Pressure Fuel Filter Choked No Priming ➡ Solution: Check the Fuel Filter Build Pressure by Pressing the Prime Pump Check for Fuel Pipe Leaks/Air --- 2. Low Rail Pressure The vehicle will not start if the Common Rail Pressure is below 250–300 bar. ➡ Possible Causes: Rail Pressure Sensor Defective SCV/IMV Valve Defective HP Pump (High Pressure Pump) Weak Excessive Injector Leakage --- 3. EDC Fuse/Relay Defective When a fuse blows, the ECU is deprived of power and the EDC light remains on. ➡ Solution: Check the EDC/ECU fuse ECM main relay --- 4. Crankshaft / Camshaft Sensor Fault If the sensor is faulty, the ECU cannot read the injection timing → the vehicle will not start. --- 5. Immobilizer Problem (Key Not Reading) If the ECU is not recognizing the key: Key symbol blinking EDC ON The starter will spin but there will be no injection. ➡ Solution: Key coding / immobilizer antenna check. --- 6. Battery Voltage Low Voltage less than 12V → The ECU will not allow pressure to build → the EDC light will come on. --- 📌 What to check first (Step-by-Step) 1️⃣ Battery Voltage Should be above 12.3V. 2️⃣ Fuel Supply Check pipes, leaks, and priming. 3️⃣ Rail Pressure Sensor Connector If loose/corroded, EDC will appear. 4️⃣ EDC Fuse and ECU Relay Check the fuse marked EDC in the fuse box. 5️⃣ Extract Fault Codes with a Scanner The exact cause cannot be determined without an EDC code. --- ❓If you wish, please tell us: Is the vehicle spinning on its own when trying to start, or is it dead? What other light is showing along with the EDC? Did any fault codes appear before? With these three things, I will tell you the 100% accurate solution.