Eaton Gen 1 (AutoShift) Fault Code: 65 PID: SID 251 FMI: 4 Low Motor Voltage
Overview:
This code indicates the Transmission ECU has detected low battery power supply to the electric shifter motors.
Detection:
Starting at key on and throughout operation, the Transmission ECU constantly measures the motor voltage. If the reading is low, the fault code is set.
Fallback:
This causes an In Place fallback.
Required Tools:
1) Basic Hand Tools
2) Digital Volt/Ohm Meter
3) AutoSelect/AutoShift Troubleshooting Guide
Possible Causes:
1) Battery bus fuse/circuit breaker is open
2) Low batteries
3) Corroded or loose contacts
4) Failed power interface module
5) Malfunctioning transmission ECU
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