No Response From PCM (Powertrain Control Module)

Tests 1 - 3:

Tests 4 - 6:

SYMPTOM
NO RESPONSE FROM PCM (DIESEL ONLY)

POSSIBLE CAUSES
- Attempt to communicate with the ECM
- Check PCM powers and grounds
- SCI receive circuit shorted to ground
- SCI receive circuit open
- SCI transmit circuit open
- Powertrain control module