PCM Messages Not Received (Export)

Test 1 - 3:

SYMPTOM
PCM MESSAGE NOT RECEIVED (EXPORT ONLY)

WHEN MONITORED
With the ignition on.

SET CONDITION
The ITM does not receive PCI bus messages from the PCM for 12 seconds.

POSSIBLE CAUSES
- PCM message not received
- Attempt to communicate with the PCM
- PCI bus circuit open
- Powertrain control module