Overview:
The Fuller Advantage Transmission Electronic Control Unit (TECU) monitors gear and rail position sensors to determine the position of the X-Y Shifter Shift Finger. Fault Code 75 indicates the transmission was powered down with the Shift Finger in a non-neutral gear position.

Detection:
Ignition key is turned off with the X-Y Shifter Shift Finger in a non-neutral position.

Conditions to Set Fault Code Active:
FMI 14 – Special Instructions: TECU detects a non-neutral gear position during power down.

Fallback:
No fallback mode is associated with this fault.

Conditions to Set Fault Code Inactive:
FMI 14: Fault code sets Inactive upon the next power-up cycle.

Possible Causes:
FMI 14
1) Driver Behavior
– Driver turned the ignition off with the transmission in a non-neutral state
2) Vehicle Ignition Supply
– Unintentional loss of ignition supply to TECU

Component Identification:
None