Ignition Coil With Built-in Power Switch Inspection

WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the ignition coil connector.
Measure the resistance between each terminal on the ignition coil connector.
- If the measurement corresponds to figure, replace the ignition coil. See Fig 1.
Fig 1: Checking Ignition Coil Connector Resistance
Courtesy of MAZDA MOTORS CORP.

Fig 2: Identifying Ignition Coil Connector
Courtesy of MAZDA MOTORS CORP.