Bus +/- Signals Open or No Response From Otis/Evic

Test 1 - 3:

Test 4 - 5:

SYMPTOM
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM OTIS/EVIC

POSSIBLE CAUSES
- Attempt to communicate with the BCM
- Fused ignition switch output circuit open
- Ground circuit open
- Overhead travel information system (OTIS)
- PCI bus circuit open
- Body control module