Power Supply Circuit Inspection

1. Turn the ignition switch to LOCK.
2. Disconnect the PCM connectors.
3. Measure the voltage between the PCM battery power terminal and body GND using a voltmeter.
   • If not as specified, repair the related harnesses and fuses.
   Fig 1: Identifying PCM Power Supply Terminal

   Courtesy of MAZDA MOTORS CORP.

Power supply terminal voltage B+