What Does an Ignition Control Module Do in an '85 Mustang?

Your '85 Ford Mustang came with a powerful engine capable of generating 210 horsepower at 4,400 rpm, but the engine would not work at all without the ignition control module. The ignition control module regulates the signals your spark plugs send to your engine so that its various cylinders work in the proper order.

Timing

The module has preset information which tells it when to release an electrical signal from the ignition coil to fire, or power up, each section of your '85 Mustang's engine. The timing countdown triggers when the ignition key is turned.

Ignition Coil

The ignition coil is a transformer that converts relatively low voltage from the battery into the high voltage needed to power the engine. The ignition control module completes the circuit, allowing power to reach the engine only at the appropriate intervals for start up.

Location

The ignition control module is usually mounted on the engine itself. However, it can also be mounted on the distributor if your '85 Mustang has had its original engine replaced.

References

• Auto Repair Help: Ingition Control Module