Bus (+/-) Signals Open/No Response From Instrument Cluster

Tests 1 - 3:

Tests 4 - 6:

SYMPTOM
BUS +/- SIGNALS OPEN OR NO RESPONSE FROM INSTRUMENT CLUSTER

POSSIBLE CAUSES
- Attempt to communicate with the BCM
- Fused ignition switch output circuit open
- Fused B+ circuit open
- Ground circuit open
- Instrument cluster
- PCI bus circuit open
- Body control module