How to test Toyota Coil Ignition module

What is an ignition coil assembly

An ignition coil assembly is used to provide current 12v to coil from a low magnetic signal from an electric point installed in the distributor. When an excel with teeth in the distributer turns around the ignition point it provides the low signal to coil ignition assembly/module and it provides the high volts to the coil and, the coil creates sparks on the spark plugs. as quickly the excel turns around the coil electric point it does process quickly as it can.

How ignition module works and wires detail

In Toyota many ignition modules or assemblies have four wires, One is ignition + wire and the second and third wires of an electric point, and the fourth wire provides negative current to the coil as it receives a week signal from the ignition module. But up model, after 4 wires modules, invention companies have invented the 5 wires ignition module, the fifth wire is used for RPM. The fifth wire sends the signal to the RPM gauge, Which tells the speed of excel rotation per minute, so the RPM works with the ignition module.


Ignition Module gets negative current from the body, it is not fitted in the body it will not get ground (- current) and it will not work.


How to test ignition module or assembly

This process is not difficult as it seems, you just need to connect a crank sensor or cam sensor with the two wires that go to the ignition module's electrical point coil and turn on the ignition and then touch the sensor top with any magnet tool it will provide the week signal to ignition module and module and it will provide the high volt to coil and coil will produce the sparks.


Kindy it is requested to do this process carefully, Keep the coil spark away from the battery positive line it should be the ground to observe the spark of a coil and keep coil wire away from you when touching the magnet with the sensor.

Post a Comment

Thanks for comment

To be published, comments must be reviewed by the administrator *

Previous Post Next Post