Eaton Gen 1 (AutoShift) Fault Code: 61 PID: SID 39 FMI: 6 Rail Select Motor

Overview:
This code indicates an electrical failure of the rail select motor that drives the electric shifter.

Detection:
Starting at key-on and throughout operation, the Transmission Controller constantly measures the motor circuit. Failure mode of short to battery, short to ground, or open circuit is detected. The Transmission Controller also monitors the amount of current required to drive the motors. If the over current limit is exceeded, the fault code is also set.

Fallback:
This fault causes an In Place fallback.

Required Tools:
1) Basic Hand Tools
2) Digital Volt/Ohm Meter
3) AutoSelect/AutoShift Troubleshooting Guide

Possible Causes:
1) Failed rail select motor
2) Malfunctioning transmission ECU
3) Power Interface Module