Possible Causes
NOTE:
This DTC is set when the powertrain control module has determined failures where a data bus is not available.
- Medium speed CAN bus failure
- Medium speed CAN bus circuit, short circuit to ground, short circuit to power, open circuit
- CAN harness link between powertrain control module and automatic temperature control module network malfunction
- The powertrain control module has not received the expected CAN signal from the automatic temperature control module within the specified time interval