Is It Time to Replace the Ignition Module?

ignition module

You, the driver, just need to turn the key in the ignition, or press the button, to start the car. However, a really complex process takes place under the hood to get the car running. The ignition module is part of the process. If this part wears out, then the engine will fail to turn on.

What Is an Ignition Module?

The ignition module switches the ignition coil on and off. When you engage the ignition, the ignition module signals the coil, which in turn starts the vehicle. You can locate the ignition module inside the wheel-well or firewall. The component resembles an electrical box with a wire harness.

Ignition module failure is not that common, but it does happen occasionally in German automobiles. It’s a bit more prevalent in BMW vehicles and especially the BMW 7-series, at least based on our observation.

Signs of Ignition Module Failure

One of the surest signs of failure is if the vehicle suddenly stalls and fails to restart. This indicates power loss, most likely from worn or corroded electrical wires.

Another indicator is vehicle overheating. If this is due to the ignition module, then the engine will stall. The reading on the temperature gauge will also be abnormally high.

Aside from an overheated engine, the engine might also stutter. You might also notice lower fuel efficiency and strong gas fume odors from the exhaust. 

If you have enough mechanical knowledge, then you can test for ignition module failure yourself using a light timing tester. This inexpensive instrument gauges the output coming from the module.

We Run Tests on the Ignition Module

Schedule an appointment with Northwest Imports if your car suddenly begins to stall or if overheating occurs. We can confirm whether an ignition module replacement is in order or if we’re dealing with another problem altogether.

Ignition Module Diagnosis

Serving Customers in Austin, Pflugerville, Round Rock, Cedar Park, Wells Branch, Liberty Hill, Jollyville and Anderson Mill