How to Test an Ignition Coil?
1 Answers
Testing an ignition coil involves the following steps: 1. Turn the vehicle's ignition switch to the ON position and unplug the ignition coil connector. 2. Use a multimeter to measure pin 3 with one probe and ground with the other. 3. Unplug the ignition coil connector, then measure pin 1 with one probe and pin 5 of the ECU with the other. 4. Unplug the ignition coil connector, then measure pin 2 with one probe and pin 2 of the ECU with the other. 5. Use a multimeter to check if the resistance of the sensor's primary coil is approximately 0.9 ohms. Precautions for using an ignition coil include: 1. Avoid exposing the ignition coil to excessive heat or moisture. 2. Do not turn on the ignition switch when the engine is not running.