No Communication With IC (Active)

Test 1 - Test 3:

Test 4 - Test 6:

SYMPTOM
NO COMMUNICATION WITH IC (ACTIVE)

WHEN MONITORED
With the ignition on.

SET CONDITION
This DTC will set if the Automatic Temperature Control (ATC) fails to receive all messages from the Instrument Cluster.

POSSIBLE CAUSES
- CAN C BUS circuit(S) shorted or open
- Instrument cluster DTC(S) present
- Instrument cluster's power/ground circuit(S) shorted or open
- Instrument cluster
- CAN C BUS (+)/CAN C BUS (-) circuit(S) open to instrument cluster
- Automatic temperature control (ATC)
- CAN C BUS (+)/CAN C BUS (-) circuit(S) open to automatic temperature control