What Are The Inspection Steps Of The Ignition Coil?

　　step one:

　　Place the ignition switch of the vehicle in the "ON" position. Then unplug the ignition coil, use a multimeter to measure the No. 3 pin at one end, and measure the ground wire at the other end. If the voltage between the pin and the ground wire is about 12V, proceed to the next step; if not, check the wiring.

　　Step two:

　　Unplug the ignition coil, use a multimeter to measure pin 1 on one end, and measure pin 5 on the ECU on the other end to see if there is a short circuit or open circuit. If there is, check the wiring; if not, proceed to the next step.

　　Step three:

　　Unplug the ignition coil, use a multimeter to measure pin 2 on one end, and measure pin 2 on the ECU on the other end to see if there is a short circuit or open circuit. If yes, check the wiring; if not, proceed to the next step.

　　Step 4:

　　Use a multimeter to measure whether the resistance of the sensor's primary coil is 0.9Ω, if it is, proceeds to the next step; if not, replace the ignition coil.

　　Step Five:

　　Use a multimeter to measure whether the resistance of the sensor's primary coil is 14.5Ω, if yes, proceed to the next step; if not, replace the ignition coil.

　　However, these are all professional operations. The owner's guide does not recommend that car owners inspect and repair the ignition coil by themselves. Not only is it easy to damage the precision instruments, but also for fear of safety risks. If you suspect that there is a problem with the ignition coil, you must go to a professional repair shop or 4S shop for repair.