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Eaton Gen 2 (AutoShift) Fault Code: 44 PID: 53 FMI: 4 Inertia Brake Solenoid Coil

Overview:
Fault Code 44 indicates an electrical failure of the solenoid that controls the pneumatic Inertia Brake.

Detection:
Starting at key on and throughout operation, the Transmission Controller constantly measures this circuit. A failure mode of a short to battery, short to ground, or open circuit is detected.

Fallback:
There is no fallback associated with this failure; however, it may be difficult to perform an initial engagement due to a poorly adjusted clutch. Also, hill shifting performance may be reduced.

Possible Causes:
1) Inertia Brake Solenoid
2) Transmission Harness
3) 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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