Primary Coil Winding

1. Disconnect the ignition coil connector.
2. Measure the resistance between the following terminals using an ohmmeter:
   • L3: A and B, B and C
   • AJ: A and B
     • If not within the specification, replace the ignition coil.

Specification 

L3: 0.49-0.57 ohms [20 °C {68 °F}] 

AJ: 0.45-1.15 ohms [25 °C {77 °F}] 

Fig 1: Identifying Connector Terminals

Courtesy of MAZDA MOTORS CORP.