Ignition Coil: Inspection

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.

Fig 1: Primary Coil Resistance Specification Table

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Replace the power transistor if there is malfunction.

Fig 2: Checking Power Transistor

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

Standard value:  13.0 +/- 20% (kΩ)

Fig 3: Checking Secondary Coil Resistance

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