Secondary Coil Winding

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Remove the ignition coil.
Measure the resistance from lead hole 1 to 4, and lead hole 2 to 3 using an ohmmeter.
- If not within the specification, replace the ignition coil.
Specification

7-11 kilohms

Fig 1: Measuring Resistance From Lead Hole Using An Ohmmeter
Courtesy of MAZDA MOTORS CORP.