Ignition Control Module: Testing and Inspection

NOTE: An analog-type ammeter should be used.

Power transistor for coil No. 1 and No. 4 cylinders





1. Connect the negative (-) terminal of the 1.5V power supply to terminal No. 3 of the power transistor





then check whether there is continuity between terminal No. 5 and terminal No.3 when terminal No. 4 and the positive (+) terminal are connected and disconnected.

NOTE: Connect the negative (-) probe of the ammeter to terminal No. 5.

Power transistor for coil No. 2 and No. 3 cylinders





1. Connect the negative (-) terminal of the 1.5V power supply to terminal No. 3 of the power transistor





then check whether there is continuity between terminal No.1 and terminal No. 3 when terminal No. 2 and the positive (+) terminal are connected and disconnected.

NOTE: Connect the negative (-) probe of the ammeter to terminal No. 1.

If the problem is still evident after checking as described above, replace the power transistor.