Circuit Open/Short Inspection: Notes

Fig 1: Identifying MAF/IAT Sensor Connector Terminals

Courtesy of MAZDA MOTORS CORP.

Fig 2: Identifying Main Relay Connector Terminals

Courtesy of MAZDA MOTORS CORP.

Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION ).
Disconnect the MAF sensor connector.
Inspect the following wiring harnesses for an open or short circuit. (Continuity inspection)

Fig 3: Identifying PCM Connector
Courtesy of MAZDA MOTORS CORP.