How can I identify a faulty ignition control module in my Audi 80?

I suspect that my ignition control module is malfunctioning in my Audi 80, but I'm not sure how to confirm it. Are there any specific signs or tests I can perform to determine if the ignition control module is the culprit?

First, check for any error codes related to the ignition system by using an OBD-II scanner. If there are no codes, you can try disconnecting the ignition control module and testing the resistance of its circuit with a multimeter. If the resistance is significantly different than the manufacturer's specifications, the module is likely faulty.

Another way to check for a faulty ignition control module is to visually inspect it for any physical damage or corrosion. If there are any visible issues, it will need to be replaced. You can also try swapping it with a known working module to see if that solves the problem.

Before replacing the ignition control module, make sure to also check the other components in the ignition system, such as the spark plugs and distributor cap. Sometimes a problem with these parts can mimic a faulty module.