Ignition Coil: Testing and Inspection

Measurement of the primary coil resistance
1. Measure the resistance between connector terminals 3 and 2 (the coils at the No.1 and No.4 cylinder sides) of the ignition coil, and between terminals 3 and 1 (the coils at the No.2 and No.3 cylinder sides).

Standard value: 0.5 ± 0.05 ohm




Measurement of the secondary coil resistance
1. Measure the resistance between the high-voltage terminal for the No.1 and No.4 cylinders, and between the high-voltage terminals for the No.2 and No.3 cylinders.

Standard value: 12.1 ± 1.8 k ohm

CAUTION: Be sure, when measuring the resistance of the secondary coil, to disconnect the connector of the ignition coil.