Ignition Coil Test

To check primary coil resistance, connect an ohmmeter between ignition coil primary terminal and coil frame. Reading should be infinite on high scale of meter. Disconnect ohmmeter from coil frame and connect it to the other coil primary terminal. Reading should be very low or zero, on low scale of meter. See IGNITION COIL RESISTANCE table.
To check secondary coil resistance, connect an ohmmeter between one coil primary terminal and coil secondary terminal. Reading should not be infinite on high scale of meter. See IGNITION COIL RESISTANCE table.

IGNITION COIL RESISTANCE

Application

Ohms

Primary

Less Than 1

Secondary

⁽¹⁾ 5000-7000

⁽¹⁾	Normal reading. A reading as high as 15,000 ohms is acceptable.