Ignition Coil Resistance

Disconnect harness connector from ignition coil. Remove ignition coil from valve cover. Using an ohmmeter, measure resistance between terminals of ignition coil (primary resistance). See Fig 1 .
Using a 12-volt battery and an ammeter, measure secondary coil current. See Fig 2 . See IGNITION COIL RESISTANCE table. Ensure current does not flow with polarities reversed. Repeat for remaining ignition coils. Replace ignition coils if resistance or current is not as specified.

IGNITION COIL RESISTANCE - Ohms @ 68°F (20°C)

Application

Primary

Secondary

1.8L

.61-.73

⁽¹⁾ *

⁽¹⁾	Measure current of secondary coil using a 12-volt battery and an ammeter. Specified current is 0.3-1.4 mA. See Fig 2 .

Fig 1: Measuring Primary Coil Resistance

Courtesy of SUZUKI OF AMERICA CORP.

Fig 2: Measuring Secondary Coil Current

Courtesy of SUZUKI OF AMERICA CORP.