No Response From Automatic Temperature Control Module

Test 1 - Test 4:

Test 5 - Test 6:

SYMPTOM
NO RESPONSE FROM AUTOMATIC TEMPERATURE CONTROL MODULE

POSSIBLE CAUSES
- Attempt to communicate with the BCM
- Ground circuit open
- Fused (B+) ckt open
- Fused ignition switch output circuit open
- Open PCI bus circuit
- Automatic temperature control module