Possible cause

• Connector terminal disconnection, poor contact, damage, deformation, corrosion
• Open circuit in wiring harness between connectors C-72, C-73 and connector C-16
• Open circuit in wiring harness between connector C-16 and connector C-19
• Open circuit in wiring harness between connector C-19 and connector C-19
• Open circuit in wiring harness between connector C-19 and connector C-64
• Connectors C-72, C-73 malfunction
• Connector C-16 malfunction
• Connector C-19 malfunction
• Connector C-64 malfunction

System wiring diagram

Fig 1: TCM Module Communication Diagram

Courtesy of MAZDA MOTORS CORP.

• Connector terminal disconnection, poor contact, damage, deformation, corrosion
• Forward sensing camera (FSC) power supply voltage or body ground malfunction
• Open circuit in wiring harness between forward sensing camera (FSC) and branch B
• Forward sensing camera (FSC) malfunction

System wiring diagram

Fig 1: Forward Sensing Camera (FSC) Module Communication Diagram

Courtesy of MAZDA MOTORS CORP.

• Connector terminal disconnection, poor contact, damage, deformation, corrosion
• Open circuit in wiring harness between branch B and connector C-19
• Open circuit in wiring harness between connector C-19 and connector C-64
• Connector C-19 malfunction
• Connector C-64 malfunction

System wiring diagram

Fig 1: Forward Sensing Camera (FSC) Communication Diagram

Courtesy of MAZDA MOTORS CORP.

• Connector terminal disconnection, poor contact, damage, deformation, corrosion
• Start stop unit power supply voltage or body ground malfunction
• Open circuit in wiring harness between start stop unit and connector C-64
• Connector C-64 malfunction
• Start stop unit malfunction

System wiring diagram

Fig 1: Start Stop Unit Communication Diagram

Courtesy of MAZDA MOTORS CORP.

• Connector terminal disconnection, poor contact, damage, deformation, corrosion
• EPS control module power supply voltage or body ground malfunction
• Open circuit in wiring harness between EPS control module and connector C-64
• Connector C-64 malfunction
• EPS control module malfunction

System wiring diagram

Fig 1: EPS Control Module Communication Diagram

Courtesy of MAZDA MOTORS CORP.

• Connector terminal disconnection, poor contact, damage, deformation, corrosion
• Open circuit in wiring harness between connector C-64 and connector C-63
• Connector C-64 malfunction
• Connector C-63 malfunction

System wiring diagram

Fig 1: EPS Control Module Communication Diagram

Courtesy of MAZDA MOTORS CORP.

• Connector terminal disconnection, poor contact, damage, deformation, corrosion
• SAS control module power supply voltage or body ground malfunction
• Open circuit in wiring harness between SAS control module and connector C-63
• Connector C-63 malfunction
• SAS control module malfunction

System wiring diagram

Fig 1: SAS Control Module Communication Diagram

Courtesy of MAZDA MOTORS CORP.

• Connector terminal disconnection, poor contact, damage, deformation, corrosion
• Connectivity master unit (CMU) power supply voltage or body ground malfunction
• Open circuit in wiring harness between connectivity master unit (CMU) and connector C-63
• Connector C-63 malfunction
• Connectivity master unit (CMU) malfunction

System wiring diagram

Fig 1: SAS Control Module Communication Diagram

Courtesy of MAZDA MOTORS CORP.