what does an ignition control module actually do?


Asked by Feb 18, 2015 at 02:01 PM about the 1985 Ford Thunderbird Elan

Question type: General

I have an 85 Ford Thunderbird-5.0 v8 that I just bought, and it appears to not be charging after I start the car and drive it for awhile. If I stop it and try to restart- no juice to start it. There is an added button on the dash (someone added next to antenna button). If you look at the charging display on the dashboard, you can see that once the car is started, the charge goes down, unless you push the added button. Then the charge goes up to where it should be. Not sure what the ignition control module actually does. Need advise

2 Answers


It controls th ignition coil's firing time. The ignition control module is the heart of an automobile's ignition system. It regulates spark generation within the engine. The ignition control module relies on the car battery to provide the 'spark' that sets the ignition system in motion. The ignition control module is normally located inside or near the car's distributor and is usually coated with insulating compounds to protect its internal electronic components.

4 out of 4 people think this is helpful.

Ok so the ignition control module has absolutely nothing to do with the charging system. Understood. I have replaced Alternator, starter relay, and battery. I think this was a problem before that the only solution was to route a wire from the button to the ignition module, to make it charge. So here I am clueless in Seattle, thinking WTF.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Ford Thunderbird Questions

Ford Thunderbird Experts

#1 oldtimer37
Reputation 1,430
#2 Tom Demyan
Tom Demyan
Reputation 1,380
#3 tennisshoes
Reputation 1,080
View All

Related Models For Sale

Used Ford Mustang"
739 Great Deals out of 41,066 listings starting at $900
Used Chevrolet Corvette"
435 Great Deals out of 20,234 listings starting at $3,688
Used Chevrolet Camaro"
798 Great Deals out of 38,851 listings starting at $2,650
Used Ford F-150"
3,272 Great Deals out of 216,647 listings starting at $1,500
Used Mercedes-Benz SL-Class"
109 Great Deals out of 3,663 listings starting at $1,500
Used Chevrolet Impala"
937 Great Deals out of 35,696 listings starting at $1,500
Used Dodge Charger"
647 Great Deals out of 29,677 listings starting at $2,275
Used Pontiac Firebird"
9 Great Deals out of 904 listings starting at $2,900
Used Mercury Cougar"
270 listings

Used Cars For Sale

2005 Ford Thunderbird For Sale
4 Great Deals out of 92 listings starting at $7,500
2004 Ford Thunderbird For Sale
9 Great Deals out of 161 listings starting at $7,998
2003 Ford Thunderbird For Sale
9 Great Deals out of 149 listings starting at $7,995
2002 Ford Thunderbird For Sale
14 Great Deals out of 347 listings starting at $6,777