No CCD Message From PCM

SYMPTOM
NO CCD MESSAGE FROM PCM

WHEN MONITORED
When the ignition is in the run or start position and battery voltage is above 10 volts.

SET CONDITION
The BCM looks for engine messages over the CCD bus and does not receive a message within a 2 second period.

POSSIBLE CAUSES
- Engine does not run
- CCD bus (+) circuit open
- CCD bus (-) circuit open
- PCM doesn't communicate