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Summary
  • The ignition module is what’s used to switch the coil primary to trigger the coil’s high voltage spark.
  • It is typically found next to the ignition coil, in the distributor, or bolted towards its side.
  • If you want to access the ignition module, you might need to remove the distributor cap. Don’t touch any of the wires to avoid messing with the firing order.

Q: Where Is the Ignition Module Typically Located?

A: The ignition module is generally found next to the ignition coil, in the distributor, or bolted to the side of it depending on the platform. Since the mid 1990s, the ignition module circuitry has been integrated into the PCM/ECM rather than having a separate module.

The ignition module basically does what the points in the distributor once did: it switches the coil primary to trigger the coil’s high voltage spark. The ignition module first appeared on domestic vehicles in 1972 on Chryslers and Dodges. The Dodge/Chrysler module was remotely mounted, meaning, it wasn’t in the distributor. GM followed with HEI ignition, which has a module in the distributor, and Ford with a remotely mounted Duraspark module a couple of years later.

, Where Is the Ignition Module Located?

Pro Tips are nuggets of information direct from ASE-certified automobile technicians working with CarParts.com, which may include unique, personal insights based on their years of experience working in the automotive industry. These can help you make more informed decisions about your car.

Pro Tip: Asian vehicles typically have the module in the distributor and often have the ignition coil mounted next to it under the distributor cap.

A remotely mounted module may be bolted to a heat sink, with dielectric grease between the module’s backing and the heat sink.

Tips on How to Access the Ignition Module

First, you need to find out where the module is, then determine what you need to do to get to it and which tools you’ll need to replace it. Pay close attention to the special procedures that come with the new module.

For some vehicles, you’ll need to remove the distributor cap to access the ignition control module. You’ll see a lot of wires, and some experts recommend leaving them to prevent messing up the firing order once a new ignition control module is installed.

About The Author
Written By Automotive and Tech Writers

The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com's thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.

Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic. The accuracy and timeliness of the information may change from the time of publication.

File Under : Ignition System , DIY Tagged With :
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