With memory power seat

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

Possible cause

Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between connectors C-47, C-48 and connector C-04
Open circuit in wiring harness between connector C-04 and connectors C-51, C-52
Connectors C-47, C-48 malfunction
Connector C-04 malfunction
Connectors C-51, C-52 malfunction

System wiring diagram

Fig 1: PCM System Diagram (J - With Memory Power Seat)

Courtesy of MAZDA MOTORS CORP.

Inspection item

Connectors C-47, C-48
Connector C-04
Connectors C-51, C-52
Wiring harness between connectors C-47, C-48 and C-04
Wiring harness between connector C-04 and connectors C-51, C-52