Ignition Coil: Testing and Inspection

IGNITION COIL: POWER TRANSISTOR BUILT-IN

1. Measurement of the primary coil resistance




Connect the negative (-) terminal of a 3V power supply to terminal 2 of the power transistor; then check whether there is continuity between terminal 3 and terminal 2 when terminal 1 and the positive (+) terminal are connected and disconnected.




Replace the power transistor if there is malfunction.




2. Measurement of the secondary coil resistance
Measure the resistance between the high-voltage terminals of the ignition coil.

Standard value: Approximately 12.1 kohm