Overview:
This code indicates the Eaton or OEM Shift Lever is not sensing any lever positions.
Detection:
Starting at key-on and throughout operation, the System Manager constantly measures the feedback from the Shift Lever circuit. If the Shift Lever reports no lever positions are sensed, the fault code is set. To allow the System Manager to detect this fault, it is necessary to turn the key on since it constantly monitors for this failure mode.
Fallback
This fault causes a downshift only fallback and shifts to neutral when the vehicle stops.
Required Tools:
1) Basic Hand Tools
2) AutoSelect/AutoShift Troubleshooting Guide
Possible Causes:
1) Lever placed between positions
Eaton Gen 1 (AutoShift) Fault Code: 74 PID: SID 54 FMI: 7 Failed To Sync Initial Engagement
Eaton Gen 1 (AutoShift) Fault Code: 73 PID: SID 58 FMI: 7 Failed To Engage Gear
Eaton Gen 1 (AutoShift) Fault Code: 72 PID: SID 59 FMI: 7 Failed To Select Rail
Eaton Gen 1 (AutoShift) Fault Code: 71 PID: SID 60 FMI: 7 Stuck Engaged
Eaton Gen 1 (AutoShift) Fault Code: 65 PID: SID 251 FMI: 4 Low Motor Voltage
Eaton Gen 1 (AutoShift) Fault Code: 63 PID: SID 40 FMI: 6 Gear Select Motor