No Response From PCM (PCI Bus) - Powertrain

Tests 67 - 70:

Tests 71 - 72:

SYMPTOM
NO RESPONSE FROM PCM (PCI BUS)

POSSIBLE CAUSES
- PCM defective internal PCI Bus open
- PCM PCI Bus circuit open
- Fused B(+) circuit less than 10.0 volts
- Fused ignition switch output circuit open
- PCM ground circuit(s) open