Eaton Fuller Advantage (2017) Fault Code: 61 PID: SPN: 772 FMI: 5 Rail Motor Circuit: Current Below Normal or Open Circuit

Overview:
The Fuller Advantage Transmission is equipped with an X-Y Shifter that selects a transmission gear. The X-Y Shifter motors are controlled with electrical current supplied by the TECU to move the Shift Finger either side-to-side (rail selection) or fore-and-aft (gear engagement and disengagement). Fault Code 61 indicates a failure with the circuit controlling the Rail Motor and the side-to-side movement of the X-Y Shift Finger.

Detection:
The system can identify an issue with the X-Y Shifter Rail Motor circuit, the TECU rail motor controller or the power and ground connections to the TECU under the following conditions:
FMI 1, 5 and 12 can be detected when the X-Y Rail Motor is energized.

Conditions to Set Fault Code Active:
FMI 5 Current Below Normal or Open Circuit: Transmission fails to complete a shift, the measured current draw of the Rail Motor is below expected values and an open circuit or short to ground condition is detected for 0.5 seconds.

Fallback:
All FMIs
F flashes in gear display.
Service light flashes (if equipped).
Engine may not crank.
Transmission may not engage a gear from neutral.
Transmission does not shift while vehicle is moving.
Until fault becomes Inactive, driver may have to shut off engine with transmission in gear.

Conditions to Set Fault Code Inactive:
FMI 1, 5, 12: Set Inactive when the shift is completed.

Possible Causes:
FMI 1, 5
1) Transmission Harness
- Bent, spread, corroded or loose terminals
- Wiring shorted to ground or open
2) X-Y Shifter Rail Motor
- Bent, spread, corroded or loose terminals
- Wiring shorted to ground or open
- Rail Motor shorted to ground, partial short to ground, or open
- Rail Motor internal failure
3) TECU
- Internal failure

Eaton Fuller Advantage (2017) Fault Code: 61 PID: SPN: 772 FMI: 1 Rail Motor Circuit: Data Valid but Below Normal

Eaton Fuller Advantage (2017) Fault Code: 61 PID: SID 39 SPN: FMI: 12 Rail Motor Circuit: Bad Intelligent Device

Eaton Fuller Advantage (2017) Fault Code: 61 PID: SID 39 SPN: FMI: 6 Rail Motor Circuit: Current Above Normal or Shorted Circuit

Eaton Fuller Advantage (2017) Fault Code: 61 PID: SID 39 SPN: FMI: 5 Rail Motor Circuit: Current Below Normal or Open Circuit

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