No TCM Bus Messages Received

Test 1:

SYMPTOM
NO TCM BUS MESSAGES RECEIVED

TEST NOTE
This symptom is diagnosed using the test NO ABS BUS MESSAGES RECEIVED

WHEN MONITORED
With the ignition on.

SET CONDITION
The Instrument Cluster detects no PCI Bus communication with the TCM for 10 seconds. The cluster will illuminate all gears in the VF display.

POSSIBLE CAUSES
- No communication with the ABS, BCM, ORC, OR TCM module