Overview:Fault Code 63 indicates an electrical failure of the Gear Select Motor. Detection:Starting at key on and throughout operation, the Transmission Controller constantly measures the motor circuit. If failure mode of short to battery, short to ground, or open circuit is detected, this fault code sets. The Transmission Controller also monitors the electrical current required todrive the motors. If the upper current limit is exceeded, the fault code is also set. Fallback:This fault causes an in-place fallback. Possible Causes:1) Gear Select Motor2) Transmission Controller Shop Talk:Key on. If the fault is present, the system should automatically detect the problem and...

Overview:Fault Code 63 indicates an electrical failure of the Gear Select Motor. Detection:Starting at key on and throughout operation, the Transmission Controller constantly measures the motor circuit. If failure mode of short to battery, short to ground, or open circuit is detected, this fault code sets. The Transmission Controller also monitors the electrical current required todrive the motors. If the upper current limit is exceeded, the fault code is also set. Fallback:This fault causes an in-place fallback. Possible Causes:1) Gear Select Motor2) Transmission Controller Shop Talk:Key on. If the fault is present, the system should automatically detect the problem and...

Overview:Fault Code 65 indicates the Transmission Controller has detected low transmission logic power to the Transmission Controller on vehicle interface 18-way connector Pin B1 and Pin E2. Detection:Starting at key on and throughout operation, the TransmissionController constantly measures the motor voltage. If the reading is low, the fault code is set. Fallback:This fault causes an in-place fallback. Possible Causes:1) Battery Bus Fuse / Circuit Breaker is Open2) Low batteries3) Corroded or loose contacts4) Transmission Controller5) Shift Controller Shop Talk:Key on. If the fault is present, the system should automatically detect the problem and set the code. If the fault is...

Overview:Fault Code 71 indicates the transmission was unable to move the front box to neutral during a shift request. Detection:The transmission detects this fault by attempting the same shifter actions 5 times and not sensing the desired position. Fallback:This fault causes an in-place fallback. Possible Causes:1) Low power to Gear Select Motor2) Gear Select Sensor3) Electric Shifter4) Yoke, Clutch, Main Shaft5) Shift Block6) Failed or misaligned Shift Block7) Dragging clutch8) Torque locked in gear Shop Talk:Engage low gear and allow the vehicle to slowly move forward. While the vehicle is in motion, move the Shift Lever to reverse low and...

Overview:Fault Code 72 indicates the transmission is unable to select the required rail during a shift. Detection:The transmission detects this by attempting the same shifter actions 5 times and not sensing the desired position. Fallback:This fault causes an in-place fallback. Possible Causes:1) Low power to Rail Motor2) Rail Select Motor3) Rail Select Sensor4) Shift Block5) Transmission Controller6) Rail slips into gear during vehicle transportation Shop Talk:Complete several shifts while the vehicle is in motion, including selections from neutral. Also allow the transmission to complete several automaticshifts. Eaton Gen 2 (AutoShift) Fault Code: 71 PID: SID 60 FMI: 7 Stuck Engaged...