Ignition Coil Power Source

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Turn ignition on. Using voltmeter, check for 12 volts between ignition coil positive (+) terminal and ground. If voltage is not present, check battery feed, main fuse, ignition switch and fusible links. See appropriate wiring diagram in WIRING DIAGRAMS - 2.0L article.

Fig 1: Checking Secondary Coil Winding Resistance (2.0L A/T)

Courtesy of MAZDA MOTOR CORP.

Fig 2: Checking Secondary Coil Winding Resistance (2.0L M/T)

Courtesy of MAZDA MOTOR CORP.