No Response From TCM

Test 1 - 2:

Test 3 - 4:

Test 5 - 6:

SYMPTOM
NO RESPONSE FROM TRANSMISSION CONTROL MODULE

POSSIBLE CAUSES
- No response from transmission control module
- Ignition unlock/run/start circuit open
- Fused B(+) circuit open
- Ground circuit(s) open
- PCI bus circuit open
- Powertrain control module