Ignition Coil Circuit Codes

Ignition coil circuit codes are a series of numbers and letters that are used to identify the different types of ignition coils. These codes are typically found on the side of the ignition coil or in the vehicle's owner's manual. The first number in the code typically indicates the number of spark plugs that the coil is designed to fire. For example, a coil with a code of 1C would be a single-coil that fires one spark plug. A coil with a code of 4C would be a four-coil that fires four spark plugs. The second number in the code typically indicates the type of ignition coil. For example, a coil with a code of 1C would be a conventional ignition coil. A coil with a code of 4P would be a plug-in coil. The third and fourth characters in the code typically indicate the manufacturer of the ignition coil. For example, a coil with a code of 1C-AC would be a conventional ignition coil made by AC Delco. A coil with a code of 4P-MS would be a plug-in coil made by Motorcraft. The last character in the code is typically a check digit. This character is used to verify that the code is correct. Ignition coil circuit codes can be used to identify the correct replacement ignition coil for a vehicle. By knowing the code, you can ensure that you are getting the right part for your vehicle. Here is a table of common ignition coil circuit codes: | Code | Number of Spark Plugs | Type of Ignition Coil | Manufacturer | |---|---|---|---| | 1C | 1 | Conventional | AC Delco | | 2C | 2 | Conventional | Bosch | | 3C | 3 | Conventional | Champion | | 4C | 4 | Conventional | Motorcraft | | 1P | 1 | Plug-in | AC Delco | | 2P | 2 | Plug-in | Bosch | | 3P | 3 | Plug-in | Champion | | 4P | 4 | Plug-in | Motorcraft | ## How to Read an Ignition Coil Circuit Code To read an ignition coil circuit code, you need to know the following: * The number of spark plugs that the coil is designed to fire. * The type of ignition coil. * The manufacturer of the ignition coil. Once you know this information, you can look up the code in a table like the one above to find the correct replacement ignition coil for your vehicle. ## What to Do If You Can't Find the Ignition Coil Circuit Code If you can't find the ignition coil circuit code on your vehicle, there are a few things you can do. * First, check the owner's manual. The owner's manual may have a list of ignition coil circuit codes for your vehicle. * If you don't have the owner's manual, you can try to find the code online. There are a number of websites that list ignition coil circuit codes for different vehicles. * If you can't find the code online, you can take your vehicle to a qualified mechanic. The mechanic will be able to identify the correct ignition coil for your vehicle. ## Conclusion Ignition coil circuit codes are a valuable tool for identifying the correct replacement ignition coil for your vehicle. By knowing how to read an ignition coil circuit code, you can ensure that you are getting the right part for your vehicle.

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