TCM Messages Not Received

Test 1 - 2:

SYMPTOM
TCM MESSAGES NOT RECEIVED

WHEN MONITORED
At all times.

SET CONDITION
If no PCI Reverse message is received for 5 consecutive messages, the NAV system will assume forward motion and be reflected with movement of the vehicle icon.

POSSIBLE CAUSES
- DTC intermittent condition
- Park/neutral switch fault or TCM DTC present
- Navigation unit