Ford
Type:
    Network - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Data Circuit Message
Cause:
    The PCM received a signal on the SCP bus that indicated a fault in the bus circuit (do the Network communication tests).

Mazda
Type:
    Network - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    CAN data bus - circuit malfunction
Cause:
    Wiring, CAN data bus, ECM