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MODULE-TRANSMISSION CONTROL DESCRIPTION The Transmission Control Module (TCM) (2) may be Or, for vehicles with a diesel engine, the Engine Con- OPERATION The Transmission Control Module (TCM) controls all electronic operations of the transmission. The TCM receives Some examples of direct inputs to the TCM are: • Battery (B+) voltage • Ignition “ON” voltage • Transmission Control Relay (Switched B+) • Throttle Position Sensor • Crankshaft Position Sensor 8E - 140 ELECTRONIC CONTROL MODULES - SERVICE INFORMATION DR/DH |