Eaton Gen 2 (AutoShift) Fault Code: 63 PID: SID 40 FMI: 5 Gear Select Motor
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 to
drive 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 Motor
2) Transmission 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 not present at key on, operate the vehicle and attempt to duplicate the driving conditions that triggered the fault code. Possible triggers include heat, vibration.
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