Primary Coil Winding

Disconnect the ignition coil connector.
Measure the resistance between the following terminals using an ohmmeter:
- A and B
  - If not as specified, replace the ignition coil.
Resistance (Reference)

0.45-1.15 ohms [25°C {77°F}]

Fig 1: Identifying Ignition Coil Terminals
Courtesy of MAZDA MOTORS CORP.