Mazda RX-8 Workshop Manual page 3063

Inspection item
Connector C-07
Wiring harness between branch B and connector C-07
Wiring harness between connector C-07 and branch C
H
Possible cause
Connector terminal disconnection, poor contact, damage, deformation, corrosion
Open circuit in wiring harness between keyless control module and branch C
Keyless control module malfunction
System wiring diagram