No Response From Overhead Console (Compass/Temperature Mirror Module)

Test 1 - 4:

Test 5:

SYMPTOM
NO RESPONSE FROM OVERHEAD CONSOLE (COMPASS/TEMPERATURE MIRROR 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
- Compass/temperature mirror module