Ignition Coil Resistance (DISTRIBUTORLESS Ignition System)

Ignition coil primary resistance cannot be checked. Only the ignition coil secondary resistance may be checked. Disconnect spark plug wires from ignition coil.
Using ohmmeter, check ignition coil secondary resistance between spark plug wire terminals on ignition coil. See Fig 1. Replace ignition coil if secondary resistance is not within specification. See DISTRIBUTORLESS TYPE IGNITION SYSTEM IGNITION COIL RESISTANCE - Ohms table. Reinstall spark plug wires.

Fig 1: Measuring Distributorless Type Ignition System Ignition Coil Secondary Resistance

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DISTRIBUTORLESS TYPE IGNITION SYSTEM IGNITION COIL RESISTANCE - Ohms

Application

Primary

Secondary

Cold ⁽¹⁾

⁽³⁾

9700-16,700

Hot ⁽²⁾

⁽³⁾

12,400-19,600

⁽¹⁾	Cold is with temperature of 14-122°F (-10-50°C).

⁽²⁾	Hot is with temperature of 122-212°F (50-100°C).

⁽³⁾	Primary ignition coil resistance cannot be measured.