No Response From Sentry Key Remote Entry Module (SKREEM/WCM)

Test 1-4:

Test 5-6:

SYMPTOM
NO RESPONSE FROM SENTRY KEY REMOTE ENTRY MODULE

POSSIBLE CAUSES
- Attempt to communicate with the BCM
- Ground circuit open
- Fused ignition switch output circuit open
- Fused B(+) circuit open
- OPEN PCI BUS circuit
- Sentry key remote entry module