To test an electronic ignition module, you have to connect it to a digital volt-ohm meter and turn it on. You will need a digital volt-ohm meter or digital multimeter, a vehicle wiring diagram, the vehicle's ignition key, insulated gloves and safety glasses. This procedure takes about 20 minutes and requires two people.Know More
Consult the vehicle's wiring diagram and locate the ignition. Expose the ignition and use the diagram to visually identify its wires and terminals. Put on insulated safety gloves and turn the vehicle off before you touch the wires.
Put on safety glasses. Fasten the ohmmeter's negative wire to the vehicle frame. Direct your partner to insert the vehicle key into the ignition and attempt to start it. While your partner turns the key, insert the ohmmeter into the ignition terminals and monitor its display.
If the ohmmeter does not detect an electrical current, your ignition module has failed and requires replacement. If the meter detects a current, the problem is not in the ignition module itself. In many of these cases, the root of the problem lies in or around the spark plugs.
The steering column of a vehicle and the dashboard are the two common locations for a car's ignition switch, according to Your Mechanic. This location makes it easy for the driver to start a vehicle and enables the transfer of power to the starter after a turn of the key.Full Answer >
The ignition switch sends voltage through all of the components that start the engine. An ignition switch is found inside the steering column of a vehicle and is connected to the lock cylinder. When the key is turned to the on position, voltage flows from the battery to the starter and distributor.Full Answer >
An ignition coil is a coil in a car's ignition system that carries the 6 or 12 volts from the battery to the many volts used to spark the spark plugs in the ignition. An ignition coil is also called a spark coil, and is classified as an induction coil. All induction coils are electronic transformers that transform low-voltage pulses from the DC supply into higher voltage currents needed to spark machine engines.Full Answer >
Although there are a number of suggested tests for the ignition coil while it is still attached to a car, the only accurate way of testing a coil is on a bench using a multimeter in the resistance setting. The ignition coil has two coils of wires, called windings. The meter quickly displays if either winding is bad.Full Answer >