RAM 3500 Chassis Cab Truck 2WD L6-6.7L DSL Turbo (2010)
ASIAN AS68RC TRANSMISSION
The Transmission Control Module (TCM) controls all electronic operations of the transmission. The TCM receives information regarding vehicle
operation from both direct and indirect inputs, and selects the operational mode of the transmission. Direct inputs are hard wired to, and used specifically
by the TCM. Indirect inputs are shared with the TCM via the vehicle communication bus.
Some examples of direct inputs to the TCM are:
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Battery (B+) voltage
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Ignition "ON" voltage
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Transmission Range Sensor
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Pressure Switches
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Transmission Temperature Sensor
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Input Speed Sensor
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Output Speed Sensor
Some examples of indirect inputs to the TCM are:
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Engine/Body Identification
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Manifold Pressure
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Throttle position
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Torque Reduction Confirmation
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Engine Coolant Temperature
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Exhaust Brake Status (if equipped)
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PTO Request (if equipped)
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Scan Tool Communication
Based on the information received from these various inputs, the TCM determines the appropriate shift schedule and shift points, depending on the
present operating conditions and driver demand. This is possible through the control of various direct and indirect outputs.
Some examples of TCM direct outputs are:
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Exhaust Brake Cut Request (if equipped).
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Solenoids.
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Torque Reduction Request.
Some examples of TCM. indirect outputs are: