How to Test Ignition Coils, Wiring & ECM Internal Circuits When Engine Is Misfiring
In this video I show you how to test the ignition coil when there is an ignition coil fault code or misfire. I explain the ignition coil wiring diagram & how to find the pins locations and wires. I also explain how to remove the ignition coil and test the primary and secondary winding inside the coil. Then I explain how to test the ignition coil power supply and control line. Then I show you guys how I test the ECM internal circuit if the ignition coil malfunction is caused by ECM internal error. ~~~~~~~~~~~~~~~~~~~~~~ 🎯 Online Courses: 🧑🎓 Automotive Engine Sensors Intro, Operation & Diagnosis: https://mechanicourse.com/course/auto... 🧑🎓Automotive Engine Actuators Intro, Operation & Diagnostic: https://mechanicourse.com/course/auto... 🧑🎓 Smart Key System (Push Button Start) Operation & Diagnostic: https://mechanicourse.com/course/smar... 🧑🎓 Automotive Diagnostic with Oscilloscope: https://mechanicourse.com/course/how-... 🧑🎓 CAN-Bus Network Intro, Application & Diagnostic: https://mechanicourse.com/course/auto... 🧑🎓 Automotive LIN-Bus & K-Line Inro, Application & Diagnosis https://mechanicourse.com/course/auto... 🧑🎓 Gasoline Direct Injection System Diagnostic: https://mechanicourse.com/course/107-... 🧑🎓 Automotive Airbag (SRS) Diagnostic: https://mechanicourse.com/course/auto... 🧑🎓 Everything about Electric Power Steering System: https://mechanicourse.com/course/ever... 🧑🎓 ABS & Traction Control System Diagnostic: https://mechanicourse.com/course/abs-... 🧑🎓 Starting System Diagnostic & Schematics Analysis: https://mechanicourse.com/course/auto... 🧑🎓 Tire Pressure Monitoring System Intro, Operation & Diagnosis: https://mechanicourse.com/course/tire... 🧑🎓Power Outside Mirrors Diagnostic: https://mechanicourse.com/course/powe... ~~~~~~~~~~~~~~~~~~~~~~ You might be interested to watch the following videos too: ▶️How to Test Ignition Coils | Coil on Plugs (2-Wire | 3-Wire | 4-Wire) & Ignition Coil Pack • How to Test Ignition Coils | Coil on Plugs... ▶️How to Test Ignition Coil Packs (Waste Spark) • How to Test Ignition Coil Packs (Waste Spa... ▶️Ignition Coil Waveform Analysis | Ignition Coil Diagnosis with Oscilloscope • Ignition Coil Waveform Analysis | Ignition... ~~~~~ Join the channel for more videos and more support: / @automotivediagnosis ~~~~~~~ 🌐 https://mechanicourse.com/ 🌐 / autodiag001 🌐 / automotivediagnosis ~~~~~~~ #ignitioncoil #engine #ecm #sparkplug #misfire Disclaimer: Any information contained in this video is just the understanding of “Automotive Diagnosis: Cars Repair & Training Guides” and it is not an official guide or reference, so everything provided in this video is just a share of our experience and understanding and they are provided as a courtesy for your reference only. So, if you are using any part of this video, use the information at your own risk. We highly advise you to check the manufacturer owner’s manual before performing any act of removal, diagnosis, inspection, or repair on your car to know about what you are authorized to do on your car, what the correct and legal procedure is and what risks might be involved, also viewers are strongly advised to consult a licensed person before any sort of inspection or repair. Due to the factors beyond the control of “Automotive Diagnosis: Cars Repair & Training Guides”, we cannot guarantee against improper use of information or tools or systems, or the procedure provided. “Automotive Diagnosis: Cars Repair & Training Guides” disclaims any damage, injury or loss caused by your decision to follow the steps provided in this video.
