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Home >> Ford >> 2004 >> Freestar Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Theory & Operation - CNG, Flex-Fuel & Gasoline >> PCM Outputs >> Transmission Control Indicator Lamp
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Transmission Control Indicator Lamp

The transmission control indicator lamp (TCIL) is an output signal from the PCM that controls the lamp on/off function depending on the engagement or disengagement of overdrive. Refer to TRANSMISSION CONTROL SWITCH  in Hardware PCM Inputs.