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No Response From Sentry Key Immobilizer Module

Test 1 - 4:

Test 5 - 6:

SYMPTOM
NO RESPONSE FROM SENTRY KEY IMMOBILIZER MODULE

POSSIBLE CAUSES
- Attempt to communicate with the instrument cluster
- Ground circuit open
- Fused ignition switch output circuit open
- Fused B(+) circuit open
- Open PCI BUS circuit
- Sentry key immobilizer module