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Home >> Mercury >> 2002 >> Sable V6-3.0L VIN U >> Repair and Diagnosis >> Transmission and Drivetrain >> Transmission Control Systems >> Sensors and Switches - Transmission and Drivetrain >> Sensors and Switches - A/T >> Transmission Mode Switch >> Description and Operation >> PCM Output

PCM Output

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.
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