Optima L4-2.4L (2001)
Ignition Coil: Description and Operation
IGNITION COIL (Power Transistor Built-in)
1. Measurement of the primary coil resistance
Connect the negative (-) terminal of a 3 V 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 a
malfunction.
2. Measurement of the secondary coil resistance
Measure the resistance between the high-voltage terminals of the ignition coil.
Standard value: Approximately 20 kOhms
